Fastest top speed any distance

[DEMO MAN]

Does anyone have any verifiable information on the fastest top speed for any Gen Viper with any modifications in any distance from whatever to the salt flats? I've heard 242 MPH was the fastest any Viper has ever gone but couldn't find any proof of it and haven't heard of any speed faster than that. Please let me know what you guys have seen or heard. Thanks,

[drewsss]

Unofficial, of course.

36674

[DEMO MAN]

Unofficial, of course.

36674

Well that clears it up, lol

[Murpowa]

Junkie and his nth moto ACR has to be up there near the top imo. 222 mph in a 1/2 mile shootout

[Ninjakris]

Well, Sal in his Gen 2 has the standing 1/2 mile record at 240'ish for a viper and possibly RWD. I'd like to know if anyone has gone faster as well.

[DEMO MAN]

Well, Sal in his Gen 2 has the standing 1/2 mile record at 240'ish for a viper and possibly RWD. I'd like to know if anyone has gone faster as well.
I remember watching Sal make that run, cant remember his exact speed thou. Have to look it up

[Vipes]

I believe that run was 237 you’re talking about, haven’t heard of anyone going faster than that in a viper, any distance...

[DEMO MAN]

I believe that run was 237 you’re talking about, haven’t heard of anyone going faster than that in a viper, any distance...

I've done 235 plus MPH but it was in 2.3 miles, I hope to break 250 sometime this year. I cant imagine doing that in a half mile, that's serious

[GTS Dean]

The Canaska-Southwind GTS-R clocked 242 down the Mulsanne straight at LeMans in 1996. That was running a GT-1 spec Caldwell engine.

[DEMO MAN]

The Canaska-Southwind GTS-R clocked 242 down the Mulsanne straight at LeMans in 1996. That was running a GT-1 spec Caldwell engine.

Can you explain the engine in more detail, was it a modified Viper V10, sorry I'm just not familiar with it and this sounds like the 242 MPH number I have heard about

[Vipes]

I've done 235 plus MPH but it was in 2.3 miles, I hope to break 250 sometime this year. I cant imagine doing that in a half mile, that's serious

235 is intense! 250 would most likely take home the viper record but would have to confirm. Where are you going to try this at?

[DEMO MAN]

235 is intense! 250 would most likely take home the viper record but would have to confirm. Where are you going to try this at?

On the space shuttle runway, that's where I did the 235, at 2.3 miles I have a little less than a mile to stop it. Its smoothest exterior concrete surface in the world which helps a lot

[johnharry]

206 mph is the fast speed for Gen Viper

[Bryan Savage]

36679

What about this thing that was in the Connor Avenue plant? Surely someone has done land speed racing in a Viper before...

[DEMO MAN]

Any close up of the plaque that's in front of it, that Viper looks like it would cut the air really well

[Mr. Acoustics]

Sal did 244 in a 1/2 mile event.

Video Here:
https://www.youtube.com/watch?v=J_ltx64ib-4

[DEMO MAN]

That's impressive and in a half mile, well I dont see me doing that but I guess my goal is 245 MPH in the 2 plus mile run

[Stealth78]

Unofficial, of course.

36674

Haha, my buddy has that knob in his pro-touring 68 Camaro.

[DEMO MAN]

Haha, my buddy has that knob in his pro-touring 68 Camaro.

Need to move it to 5th vs 6th haha, Vipers fall on their face in 6th.

[06SRTCoupe]

I think the fastest Viper ever was a Gen 2 car that was painted blue with the American flag painted on top. I want to say Mike aka 98 RT/10 owned it after it ran 250+ in the salt flats. It has been a really long time so I am not 100% sure on the details but I am almost positive it went over 250.

[PRVT JET]

I think the fastest Viper ever was a Gen 2 car that was painted blue with the American flag painted on top. I want to say Mike aka 98 RT/10 owned it after it ran 250+ in the salt flats. It has been a really long time so I am not 100% sure on the details but I am almost positive it went over 250.

That was SVS inc. vehicle.

Isaac

[Steve-Indy]

Ron Misjak Sr and Ron Jr built their SVSi Twin Turbo Stryker based on a Gen II GTS...it was fast and quick per a friend who took a ride in it about 1999 or 2000. It had a very impressive, distinctive paint job.

The target top speed was 300 mph...though they fell a little short ( by 53 mph) last I heard....BUT, 247 mph is a real accomplishment in my opinion...especially at that time.

See link below.

https://www.viperclub.org/vca/threads/fastest-viper-in-the-world-svs-stryker.525487/

[DEMO MAN]

You guys are killing me, I was all set to run 245 MPH and now I need to find 3 more MPH, lol. Back to the drawing board.

This is the car I plan to make the run with, obviously I'm removing all the downforce. I figure as far as safety goes this is the one I need to run, fully caged, fuel cell, fire suppression, etc. I've done a few shakedown runs with the aero on, totally stock X motor and took it to 188 MPH. Very solid car and I expect with the mods planned I will break my personal best of 235 MPH but I don't expect to make the record attempt until late this year. Open to listen to any suggestions regarding this, appreciate the help. David

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[DEMO MAN]

So while I'm waiting to get the black Viper ready for it's 250 MPH attempt we set up a day to have some fun and accomplish something my friend has wanted to do. So on March 9th we went out to Space Florida with Johnny Bohmer Proving Grounds and make some runs. I took my 2010 Toxic Orange Viper out there to do that. It's 848 RWHP 857 torque nitrous car. Well the first half of the day went beyond fantastic, my friend Scott ( 30 years old ) who found out he has leukemia back in November 2018 had a bucket list item of driving a car to 200 plus MPH in a mile. I'm beyond ecstatic to say he did 201+ out of the box and followed that up on the next run with a 202+. Scott was a big part of this car doing the 235 MPH in the past and he has countless hours wrenching on this Viper. He has been in the hospital several times for weeks on end doing chemo etc. His bone marrow transplant is happening this week and he is going in on a high after this weekend. Once he recovers he will be back turning wrenches and in the car for another mile looking to break a record.


After that perfect morning the rest of the day was a bit of a struggle for me and the Viper. They set up the timing lights for the 2.7 mile runs while we had lunch and let the cars cool some. I was really looking forward to maybe breaking my old record of 235 with a 240. I've done all the math and the gearing, tires, HP and torque is there to do that. The first run was going to be a somewhat easy one I'm thinking, I leave the line, just rowing thru the gears and thinking...…...holy &#%$ this thing has never pulled like this before and I'm realizing that 240 is entirely possible. I actually ease out of the throttle some thinking I need to time the finish line so the car crosses still pulling. Then the car goes into limp mode and I abort that run...….UGH! Set up for run 2 and I'm back on the line with the limp mode issue resolved. This time I'm thinking ease out and go maybe 3/4 of a mile and then hammer it to work out the timing at the lights. I run thru the gears not realizing I'm screwing up the nitrous programmer which is looking for max RPM and the 500 RPM drop to count the gear changes as we lock out gears 1 to 3 and only run the nitrous from about 180 MPH on in 4th and 5th. So I now have screwed up this run completely and it winds up being a NA run at 201 MPH...……….2nd UGH! So back to the start, more time to let the car cool off. We line up again, all systems on go, flag drops and I have decided I'm going to just run hard thru the entire 2.7 miles. I'm 3/4 of the way thru the run, the car feels amazing, tach is at 6300 which is 230 MPH and it's still pulling hard. I scan oil pressure, tach and then across the hood constantly and this is going to be a big one! Then it all ends as the header collector comes apart and the car goes into limp mode again. I idle thru the timing lights at 215 MPH...……………..3rd #&%#@*%#&@ UGH! I limp it back to the trailer, now at this point I'm so bummed I want to just load it up and go home. My friends John and Larry step up and decide to put the header collector back together and get me back out there. They pull the sill off the car, which the open headers have cooked the paint on it. I attached a few pictures of that. They then begin to put this extremely hot header and collector back together in short order. I walk away for a little bit and come back and they are bolting the sill back on. Can't thank them enough for that, I'm sure they have numerous burns all over as a result of that. So we put 2 gallons of 104 in the tank, I ask about changing the nitrous bottles and we decide to throw the ones from the mile runs back in the car which we think has enough left in them for 1 run. We change the bottles, back to the line, waiting forever it seems for bottle pressure. Finally get there and I line up, flag drops and I'm off for what is the last run of the day. As the car accelerates I'm thinking this is it, it feels so freaking fast and it's pulling so hard that I'm convinced I'm about to pull off a 240+ MPH run and then it just falls on it's face, AFR goes super fat and I immediately know what happened, 1/2 mile short of the timing lights the nitrous ran out. I'm beyond disappointed because in the trailer are 3 totally full bottles, biggest UGH yet but as I drive back the only thing in my head is Scott ran two 200+ MPH runs and on Tuesday he has the biggest challenge of his life. This afternoon is a blip of time that in the grand scheme of things is just another life experience for me. I left there that evening totally satisfied with the day we just had. He and I will be back there again and the next time it will be even better, 250 MPH will happen in time and Scott will be a part of that achievement. In my book we had a great day.


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[ticklechicken]

DEMO MAN - awesome story, thanks for sharing

[Old Surfer]

Cool story bro!

[LATAMUD]

Awesome David. I'm going to have to pick your brain one of these days in getting my car in order.

[DEMO MAN]

Thought I would share a couple of articles about the ACR-FX I plan to run the 250 MPH in if all goes as planned ( does it ever? ). These are just some test runs with totally stock motor, trans, diff, etc so don't expect any big speeds. Motor work will start soon and I hope that within the year we are back out there making another attempt at some big numbers. Anyone interested in running please let me know and I can go over details of what it costs, safety, badging, etc

https://www.motor1.com/news/314000/viper-acrx-standing-mile-video/

https://blog.dupontregistry.com/dodge/viper/dodge-viper-acr-top-speed-3122019/

[DEMO MAN]

Just an update on Scott and his leukemia, he went in the hospital for his stem cell transplant a few days after his bucket list 200 plus MPH run on the space shuttle runway. He got to come home on Saturday April 6th and all signs so far have been very positive. White blood cell counts are up, ANC counts are up all great moves in the right direction. He even says his energy levels are coming back. He's looking forward to getting back to a normal life and I'm looking forward to his help on the 250 MPH attempt in the future. Here's his certificate, decal and patch from his run, I should have a video of his run soon and I will post that when I get it.

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[No hemi]

that's so cool David, I ve been wanting to do one of those top speed runs on my viper . see hw a stock 13 would do in the 2 miles

[Pauler85]

140mph, 1995 RT/10. It was fun.

[DEMO MAN]

that's so cool David, I ve been wanting to do one of those top speed runs on my viper . see hw a stock 13 would do in the 2 miles

Going to go late this year I hope and work on that 250 MPH number if I get all the motor work done in time. We will run 2.3 miles which should be enough, bring that RTTLSNK down and lets have some fun.

- - - Updated - - -


140mph, 1995 RT/10. It was fun.

Nice speed, I assume that was all motor? Where did you do that at?

[ticklechicken]

Going to go late this year I hope and work on that 250 MPH number if I get all the motor work done in time. We will run 2.3 miles which should be enough, bring that RTTLSNK down and lets have some fun.

Is this an open event or invite only?

[DEMO MAN]

Is this an open event or invite only?


Anyone can go as long as you can get thru background check, which really isn't a big deal. Then your car has to pass tech inspection regarding brakes, tires, no leaks, etc which is normal for any high speed event. You can bring one guest, 2 cars and you are out there from about 0700 to 1700 running 1/2 mile, 1 mile and 2.3 miles. It's an amazing place, smoothest exterior concrete surface in the world, 100 yards wide and 3.3 miles long, on top of the fact it's where the space shuttles landed! If you want to know more about it just google Johnny Bohmer Proving Grounds or pm me anytime. David

[DEMO MAN]

I got the video for Scott's 202 MPH mile run and thought I would share it with everyone. He received his stem cell transplant a few days after this video was shot and he's doing great so far. He's out of the hospital but has to stay away from the general public for a few months just due to the risk associated with lower white cell counts. We plan on some major mods to an engine as this year progresses and heading back out there within a year for me to make that 250 MPH attempt. Thanks Mike and Bart for the block and crank, looking forward making those components a part of this attempt.



https://www.dropbox.com/s/wxd141t0knuhx8j/Scotty%20Video.mov?dl=0

[DEMO MAN]

Here is a link to a run I made a few days back, it shows just how long I am at WOT. There were some wicked crosswinds so the car was dancing a bit.



https://drive.google.com/file/d/1w28Xx1uhe_Pzky2sNZacNTeOy7WjsVK8/view?usp=drivesdk

[Bryan Savage]

Here is a link to a run I made a few days back, it shows just how long I am at WOT. There were some wicked crosswinds so the car was dancing a bit.



https://drive.google.com/file/d/1w28Xx1uhe_Pzky2sNZacNTeOy7WjsVK8/view?usp=drivesdk

Cool vid! Certainly doesn't look very smooth. Got a camera with some stabilization? lol

[DEMO MAN]

Cool vid! Certainly doesn't look very smooth. Got a camera with some stabilization? lol

LOL, yea it's a bit like watching the original Blair Witch Project. I had 2 other cameras in the car put in by professionals so some better video is coming once all the editing is done.

[Bryan Savage]

LOL, yea it's a bit like watching the original Blair Witch Project. I had 2 other cameras in the car put in by professionals so some better video is coming once all the editing is done.

At least it wasn't hand-held video!! Lawd knows there's enough of that junk out there! :D

[Schen]

Awesome stuff, digging the Scotty video!

JBR follows me on Instagram, that's the stuff of dreams right there! To go WOT on a airport runway seems like an experience!

--RS

[mackzilla]

I've done 160mph at Mid-Ohio a couple of times but don't have enough brake to sustain that every lap.

[DEMO MAN]

Awesome stuff, digging the Scotty video!

JBR follows me on Instagram, that's the stuff of dreams right there! To go WOT on a airport runway seems like an experience!

--RS


It always seems like it's over quick when you are in the car doing the run but watching the video afterwards seems to take forever. Scotty will be doing another 1 mile attempt late this year if everything comes together and I will make an attempt at a big speed on the 2.3 or 2.7 mile run, I feel like I may need to add a chute for these runs.

[DEMO MAN]

I've done 160mph at Mid-Ohio a couple of times but don't have enough brake to sustain that every lap.


That's impressive on a road course, I assume you are top of 4th for that speed? It's a lot easier to stop the car in the mile run than it is for the 2.3 or 2.7 mile runs. I went off the end once after a 235 + MPH run but it wasn't that far off and very little damage to the car. I will say it was quite the ride and I knew it was a big speed when the needle disappeared on the speedometer.

[DEMO MAN]

Here's an article and video on my ACR-FX that shows the upside of having a fire suppression system in your car. I will say the system worked exactly as it was suppose to and since the bottles had reached expiration date it was the right time to test.

https://www.motor1.com/news/350075/dodge-viper-acr-fire-supression/

[DEMO MAN]

I'm making some progress toward the run scheduled for later this year. I decided the ACR-FX would require more work than I was willing to spend so I found another Viper to purchase that had some serious mods already. I'm having a cage installed, new brakes, fire suppression for cockpit and engine compartment, 200/300 parachute, and plenty of other work to make sure I reach my goal safely. We should have about 1650 or so RWHP by the time we finish although the car wasn't too far from that when I bought it. The list of mods I'm doing/planning are mostly to ensure that at 250 plus I'm as safe as you can be at that speed. We are going thru everything on the car to make sure that those components are as ready as they possibly can be. Transmission is pulled and will be rebuilt with new 5th/6th gear ratios, clutch is being pulled and inspected, new explosion proof bellhousing will be installed, new LSD and differential gear ratio will be installed, lots of other smaller mods to make the car safer and faster. It's coming along and if all goes as planned it will be completed later this year and ready to run. Here's a few pics of the cage work that is about to wrap up.

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[plumcrazy]

used to go out on rt 287 in NJ every single time i took it out and would hit 150 minimum. did that literally hundreds of times allegedly. there are a few guys here that can confirm this alleged claim

[TA Two Oh]

The welds on that cage are beautiful. Nice work! Of course, I hope you don't ever need it. Keep us updated with your build and eventual speeds.

[DEMO MAN]

The welds on that cage are beautiful. Nice work! Of course, I hope you don't ever need it. Keep us updated with your build and eventual speeds.


Thanks, the guys are doing a fantastic job with the cage, welds are so beautiful I almost hate to cover them with paint. Definitely hope I never need it but I believe in being prepared. I think we are going to add a lexan bulkhead between the dry sump oil tank and drivers compartment just to increase the safety a bit. The fire suppression system is going in this week, it's both automatic and manual pull. New Tillett drivers seat arrives today sometime and the final part of the cage can be welded in after it's positioned. Then it's paint and reassembly of the interior. After that it's on to the mechanical improvements and some test and tune with lots of dyno time. I will keep posting pictures as it's put back together along with some of the updates we have planned. The first time I ran 200 I was on a high for weeks, then that wore off and I went looking for that feeling again, 205......215...….228...….232...….and eventually 235 MPH, and every time I reached a new goal the high wore off quicker. Kind of made me understand what an addiction feels like, but this is probably going to be the last one. Each MPH is costing more and more and I'm sure at some point my brain is going to point out to the rest of me that this is getting a bit insane. Although I think that the Viper is aero capable of 275 MPH with some minor body mods...……….

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[DEMO MAN]

used to go out on rt 287 in NJ every single time i took it out and would hit 150 minimum. did that literally hundreds of times allegedly. there are a few guys here that can confirm this alleged claim

I will say there is nothing like the sound of that big V10 at WOT, I will take that over the stereo any time. I'm guessing your 150 was about the top of 4th?

[plumcrazy]

yes roughly. it would go a bit longer but i didnt need to stress the engine unless i was running in mexico

[DEMO MAN]

Tillett seat showed up yesterday and I have to say I'm beyond impressed with it. By a huge margin it is the most comfortable race seat I have ever sat in, and it doesn't even have any pads in it yet. The quality of it is amazing, I've used other brands and nothing compares to this seat. Doug Shelby sells these seats, I do have to say I didn't order this one from him but that was the result of the leadtime, I had to have one to finish side bars on cage so I had no choice but to search for stock. We are making the mount this week to install the seat and I will post up pics once it's in the car.


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[DEMO MAN]

Drivers seat has been installed, the project is coming along nicely and I expect the cage to be painted soon and the interior/body panels to start going back on after that. Parachute should be mounted later in the week along with the fire suppression system which will be (2) 10 lb bottles, 1 for engine compartment and 1 for cockpit. After that it's brakes, transmission and some other go fast parts. Hope to be on a dyno soon to see what more we can squeeze out of it.


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[DEMO MAN]

Last bar in at the door, plenty of room, allows us to keep stock door panels and all the interior. Once that bar is tig welded along with a brace back under rear hatch to bolt in the (2) fire suppression bottles the cage will be complete. Fire suppression is a combination of automatic and manual pulls for rear hatch and drivers compartment and the engine compartment is a completely manual system. We plan to pull out the E-Brake handle and install the operating handle for the chute in that area. After that we are adding a bulkhead to keep the drivers compartment separate from the rear hatch area since that holds the fuel tank and oil tank for the dry sump, driver safety is first priority and then speed. Cage will be painted to match car, then we will install some sound deadening/heat transfer material to keep the cabin a little quieter and cooler. Next step is to reassemble/install the interior, add harnesses followed by the body panels. The plan is really coming together and we will get into the mechanical aspect of the project next month to include clutch, transmission, brakes, differential along with other components to make it a bit faster. I'm looking for a quality quick release steering wheel if anyone has a suggestion or recommendation on that.


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[DEMO MAN]

Fire suppression bottles have been mounted and the automatic and manual nozzles will be positioned in engine, cockpit and rear hatch area. We have also completed the parachute tether mount which I think came out really nice. The bulkhead flange that separates rear hatch area and cockpit is just being planned out and located. You can see it in the left side of the one picture. Once we get that done we will cut and fit a lexan panel to give some rear visibility. Everything is progressing and I hope we will be ready to make the first attempt in October as we planned.

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[DEMO MAN]

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Haven't added anything in a while so I thought I would update the cage progress. The plan is coming together, cage is painted, interior will be reassembled soon, new clutch, bell housing and G Force built transmission will go in soon. After that we have some minor details to accomplish and then it's time for some dyno/tuning. We want to make sure we have adequate HP/torque to get the job done so we will add a small shot of nitrous on top of the TTs as our "just in case" insurance policy. We are about 7+ weeks away from our attempt at 250+ and at this point all looks good.

[99RT10]

That is pretty!!!

[DEMO MAN]

That is pretty!!!

Let's hope it's pretty fast Mike.

[Hathoway]

ART Ballista Viper, 1 mile event (American Racing Technology):

https://www.youtube.com/watch?v=S3Uck4st64s

https://www.youtube.com/watch?v=FUbVzemAZ7o

221mph 1/2 mile pass for a TA (Calvo Motorsports):

https://www.youtube.com/watch?v=fjDB2yt2e9Q

Sal Patel doing 229, 1/2 mile:

https://www.youtube.com/watch?v=ue6O12a6fNM

Is there a video of a Viper doing over 240mph?

[DEMO MAN]

This is a link to one of my previous runs. This one was 232+ MPH and the next run a hour or so after this one was 235+ MPH although I have no video on that run. I made an attempt at 240 but had issue after issue and just couldn't make it happen that day. I hope this 250 attempt goes well and we will have video of it to post up after the editing is done.

https://www.youtube.com/watch?v=rz6AD2fGWqA

[DEMO MAN]

Here is a couple more pics of the cage after paint and the seat just sitting in place. The work this guy does is amazing! I can't wait to be strapped in and looking out over the hood at 250 + MPH

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[DEMO MAN]

Top is back on car, all the rear suspension, differential, sway bars etc have been installed. Give it another few days and it will start to look like a Viper again. 40039
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[DEMO MAN]

More parts installed back on car, quad carbon clutch, built transmission, oil tank and lines for dry sump, quarter panels, front bumper and so on. Should be starting the engine in next day and then it's off to dyno/tune to see what we can get out of it. Hoping for some big numbers but reality is dyno is not the final say on what the car is capable of. Did some checking on entry and more important exit with HANs and helmet on, all went as planned. We are going to lower the seat another 1.5" or so and lean it back maybe another 8 to 10 degrees. I can see the light at the end of the tunnel and hopefully I get a week or so of just driving it on the street to get some seat time. I probably have 100,000 + miles driving Vipers but each one is a little different. I will post up the dyno numbers for what they are worth next week. Closing in on Oct 26th fast but I think we will be ready.

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[braunstein82]

Can't wait to see how it does

[DEMO MAN]

We are down to 19 days before tech inspection and the next day it's 250 or bust. Blucifer is really coming along well, started the engine a day ago after months of modifications being done. All the fluids changed, new race pads, etc. Still have windshield, side sills, rear hatch etc to install but those are minor things. We have the new Simpson harness, removable steering wheel and fire suppression ready to go in also. On the 7th it goes on the dyno to be tuned, hoping to squeeze a little more out of the engine just in case it's needed. Overall the build is exactly what I wanted, and I hope it's capable of what I'm after. We are trying to get everything wrapped up by the 19th and may run the half mile up in Ocala just to shake down the build. Here are a few more pictures.

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[qc-teky]

I'm signed up for Ocala as well. Hope to see this car make some passes. Hoping for good weather too.

[DEMO MAN]

I'm signed up for Ocala as well. Hope to see this car make some passes. Hoping for good weather too.

What day are you running in Ocala?

[qc-teky]

I've signed up for both, just in case weather cancels one. I won't be anywhere near your speeds - just a bolt-on car. Mostly wanted to come watch some of the fast cars at one of these and figured I may as well make some passes while I'm there. What day do you think you'll be running?

[DEMO MAN]

I've signed up for both, just in case weather cancels one. I won't be anywhere near your speeds - just a bolt-on car. Mostly wanted to come watch some of the fast cars at one of these and figured I may as well make some passes while I'm there. What day do you think you'll be running?

I plan on making a few passes on Sunday but that's provided everything is completed on the car. I won't be making any 200 plus passes, this is more a shakedown for the car and I can't afford to break it less than a week before my 250+ attempt. I won't push it hard or make any hard launches so I might run between 150 and 175 at the most. Looking forward to seeing you run out there.

[DEMO MAN]

We have the car on the dyno and have made some pulls in the lowest setting. Working our way thru positions 1 to 5. Hope to squeeze a little more out of it on the #5 position but we shall see. As soon as all the tuning is completed I will advise how it went. Windshield goes back in it Friday and then the balance of the body panels along with some underside aero pieces. We still have a lot of smaller things to address such as plumbing on fire suppression, chute mounting along with cable/release handle, tires, alignment and so on but we have 14 days left and I don't see any reason we won't be ready ( famous last words...….right ). Here are some pics of it on the dyno.

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[HHI VIPER]

I've got my Gen 2 up at ARD in Atlanta getting the motor built and I believe there Gen 2 ran 241 last year?? I could stand corrected but it seems I remember that.

[DEMO MAN]

I've got my Gen 2 up at ARD in Atlanta getting the motor built and I believe there Gen 2 ran 241 last year?? I could stand corrected but it seems I remember that.

I believe that was Sal and he did 244 I think.

[HHI VIPER]

Well my build wont do that, but I'm hoping for 625+rwhp on just motor. Forced air later if the wife let's me! LOL We just bought her a Maserati so she better!!!!

[DEMO MAN]

We are well into finalizing all the last minute issues that everyone has right before any event. We had some issues with dyno/tune and Jamie tracked it down and repaired the wiring. Now we can switch between the 5 tunes. All body panels back on the car, so many smaller things to address but we have everything laid out on a whiteboard and the guys are quickly marking them off. New tires going on the car, along with alignment. At this point it looks like we will make it to Ocala on the 20th to do some shakedown runs and data log it all to determine what changes we need to make. Then we basically have 4 days before we have to load up for the 250 MPH attempt. I'm really looking forward to seeing how that goes, I know that we have done all the prep work, the guys have countless hours in not only making the car safe for me to drive but also fast, On Oct 26th we shall see if we did enough, hope to be posting some big numbers.

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[ky13]

The cage turned out great! What were the final numbers? Good luck at the track.

[DEMO MAN]

The cage turned out great! What were the final numbers? Good luck at the track.

That cage is a work of art, Jamie's dedication to perfection is amazing. I almost hated to have the roof put back on. We had issues on dyno with that 5 position switch so I didn't get any solid HP or torque numbers as the engine management system kept jumping between tunes so timing and boost were all over the place. That issue is resolved but we won't have a chance to get back on the dyno until after some shakedown passes in Ocala FL. I will post some numbers after that hopefully but it depends on what all we need to work on after Ocala. Thanks

[qc-teky]

Glad to here you can make it to Ocala. Just looked some weather forecasts - most are calling for a 40-50% chance of showers. Great.

[DEMO MAN]

Glad to here you can make it to Ocala. Just looked some weather forecasts - most are calling for a 40-50% chance of showers. Great.

That forecast is generally every day in FL, the normal rainy season is over but we do occasionally get rain that last a hour or so and then the sun is back. I wouldn't worry just yet, weather here can change quickly. I only signed up for Sunday so hopefully that's a clear day so I can get in a few passes. I normally park on right side of runway in the grassy areas just past starting area, driving Ram 2500 and silver colored enclosed trailer, come over and hang out if you have some time.

[No hemi]

Good Luck in your runs!!!, keep me posted , see you at nve 4!!!!

[DEMO MAN]

Good Luck in your runs!!!, keep me posted , see you at nve 4!!!!

Thanks, I will definitely let you know how it goes on the 26th, the 20th won't be any big numbers. We are just trying to make sure there are no issues with the build so maybe some 150 to 175 MPH runs at the most. I have such little time between those dates I can't take a chance breaking it in Ocala. You need to come run one of the days out at KSC, see what that snake will do.

[DEMO MAN]

More progress from Jamie and his crew on prepping the car. Fire suppression bottles mounted and auto/manual nozzles are being positioned, new windshield has been installed, removable Momo steering wheel installed, bracket for shoulder harness and seat support has been fabricated, lots of just tedious little details that have to be attended to so we are ready to run it. Honestly don't think this thing would have ever happened without Jamie and his guys planning out the entire process from cage to lug nuts. I feel like I have the easy part, strap in and work the pedals. Here are a few more pictures of the progress. I really appreciate all the support from everyone, hope that the attempt at 250 doesn't disappoint.

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[qc-teky]

Yeah I'm coming down regardless - staying at the Howie J in Ocala. I'll look for you Sunday.

[ViperPete]

Holy moly that cage is gorgeous

[DEMO MAN]

We loaded up and went to Wanna Go Fast in Ocala on last Sunday. Our main purpose was to do a few shakedown runs, make sure all the changes didn't cause any issues. I just expected to maybe do a few 150 MPH passes as I didn't want to take any chance of breaking something before our 250 MPH attempt. We unloaded the car about 11 and got in line, I got a friend in a SC Camaro to stage beside me with the understanding he would leave first so if I got loose I would be behind him. I leave the line and it doesn't take long to realize I have no traction control, car is just spinning tires, I go to second, more of the same and that went on for 2 more gears. I think that run ended up at 173 MPH. Back to the trailer and we all are discussing what is wrong. We look at the traction control switch and realize it's in the off position and back I go for the second run with it switched on. This was going to be a 190-200 MPH run except for the fact it was a repeat of the first run, so we learned it's something else besides the switch. I think that run was 177 or so. At this point I'm second in manual class and 1.48 MPH out of first. I decide while the experts are discussing what is wrong I will go back out and run some more. It's actually a little fun to have a car on the edge, kind of forces you to drive it a little bit. I turn the HP down, go to position 3 in the tune and run a 183+ with the car still spinning as I crossed the line. That put's me in 1st of 32 cars. I decide if position 3 is faster than maybe position 2 is better with even less HP so I switch and go again. Turns out position 2 is set up for 93 and I'm running C16, it pulls a lot of timing and although the car spins less it also is slower. That run was my slowest of the day at 164. So what we learned from the day was we have to fix that traction control issue, everything else worked great, and the driver has little if any control of that right foot. I'm so use to NA and progressive nitrous cars which are very linear/predictable and this car is about as far from that as they come. I think once the traction control system is back and we program in some boost by speed I will not have any issues taking it to big speeds.
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[DEMO MAN]

I think we have the traction control issue worked out. We are wrapping up some other things to include the chute mount, long wheel studs/open lugnuts, tires balanced, alignment and putting together some spare parts we may need out at the runway. At this point as long as the weather is good we expect to make multiple passes on Sunday from 1/2, 1 and 2.3 miles. I had calculated it should do 250 in 1.25 to 1.5 miles so the plan is to use the 1/2 and 1 mile runs to gather data and make adjustments for the 2.3 mile run. Plan is to ease out about a mile and then make the run and if it doesn't reach 250 then maybe ease out 3/4 of a mile and see how that works out. I feel good about our chances of breaking 250 but we all know that everything has to work right to make it and only 1 thing breaking could end our chances for the day. Here are some pictures of the chute mount Jamie fabricated, we run a 200/300 landspeed chute which is a much smaller diameter than a drag chute and the tether is probably 3 times as long. 72 hours from now I should be staring across the hood of Blucifer and hoping it all holds together for that big run. I will post the results next week.
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[DEMO MAN]

We were unable to make any runs this weekend. At first we were told Saturday was cancelled and we would be out on the runway on Sunday. Everyone came in Friday to get their badges, ready to go for the weekend. Saturday was looking very much like rain anyway and Sunday looked like a great day. By late Friday afternoon the call came that cancelled Sunday. No one really had any idea what was going on until Sunday morning we all learned a space plane had landed on the shuttle runway early that morning, https://www.msn.com/en-us/news/technology/air-forces-x-37b-space-plane-lands-after-record-780-days-in-orbit/ar-AAJrIZl?ocid=spartandhp , kind of explains why we were not told much. So now the next open date is Dec 7th. Gives us plenty of time to double and triple check everything and make any adjustments needed. It will also be a little cooler and typically Dec has lower chance of rain here in Florida. I will keep updating the thread as we make any changes to prep for Dec. These are some pics of the chute release.
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[DEMO MAN]

Here's a pic of the ACR-X long studs and open end lugnuts required to pass tech for cars capable of more than 200 MPH. Thanks Tom for that fantastic service on these parts and thanks Bart for the loan of the ACR-X wheels for the run.
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[LATAMUD]

Jamie did an amazing job on your car.

[DEMO MAN]

Here is one of the passes I made at Wanna Go Fast Ocala Florida. It looks so slow but without traction control once the turbos spooled up it was nothing but tire spin. I think that pass was 173 or 177 MPH. I was in and out of the throttle constantly trying to figure out how to make the tires hook up. I was running street tires which I know drag radials would have been so much better. Just wanted to run what I was planning to run on shuttle runway so I would know what to expect out there. I'm sure a few of you experienced TT guys will recognize from the video that this is my first TT car.

https://drive.google.com/file/d/1-OWBYFqSwM85-Higqg_-pfVONH7A4ob8/view?ts=5dafa96e

[DEMO MAN]

Well we are down to 4 days before we have to load up trailer sometime Thursday so on Friday we can get our badges, get the car thru tech inspection and do our prep work at the runway. We have multiple tunes in the car, each a little more aggressive than the previous one. We set up the boost by speed from zero to 240 MPH and increased it based on where each gear tops out. What we have left to do in next few days to fine tune the traction control, install scramble boost button ( my just in case I'm at 249 and the timing lights are coming up ), install a body pan under the engine with oil absorbent pads ( this is just in case engine goes boom ) to keep oil from reaching the rear tires...……….I really hope this was a total waste of time, fasten the fire suppression lines to the cage, mount the revised diffuser, mount the new shift light, remove the wipers/mirrors, pack the chute and then wash/wax it because anything that makes the car slicker makes it faster. After that it's loaded up, along with all the C16, generator, fans, spare parts and tires etc. Once Saturday arrives we will run the half mile, maybe a few times to gather data, I won't push the car hard at all, maybe a 190 MPH run as the whole goal here to break 250 and I won't risk breaking the car in a distance I know it can't reach 250. After the half mile runs are over we will set up for the mile and make a few passes again probably just gathering data in various tunes. I will probably run it hard in at least 1 of the mile runs but I suspect in reality I need 1.25 miles min to make the 250 MPH. After the day is over I will post an update, hopefully that we set the record but good, bad or ugly I will let you know. We will have a lot of pics and videos of the runs and will post those as the editing is completed. This has been a long time in the making and lots of people put some serious effort into making this attempt possible. I hope it all comes together and by late afternoon Dec 7th we have reached our goal.

[DEMO MAN]

Saturday just wasn't our day, car had issues from the first few seconds of the half mile shakedown run and we were never able to recover from that. The issues seemed to be related to a corrupted tune which I understand was the result of trying to merge a new tune with older firmware. We will regroup and go again but huge disappointment to everyone involved in this attempt. It's tough to spend the better part of a year prepping a car for an event just to have it all fall apart on the day of, but we all know that if it was easy everyone would be doing it. Back to work and I will post as we progress toward a new date and other mods we may do to the car since we have some more time now. I will say that it may not be fast but it sure looks like it is even sitting still in the pits lol.


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[DEMO MAN]

We continue to make progress on the car, the corrupted tune issues have been resolved and it's now back at the tuner getting more dyno tuning work done. That should be wrapped up by the end of the week. There are a few small details that should be done the first week of 2020 and then I want to get a little seat time on the highway just to become more familiar with any little quirks it might have. We are making position 1 the 93 octane road tune and will set it up with lowest boost/HP possible, then positions 2 thru 5 will be the C16 tunes and each will be progressively more boost/HP. After all is completed it's just waiting until we can get back on the runway and make another attempt at some big speed. Here are a few pics done at Jamie's shop in Lakeland.

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[DEMO MAN]

Ever wonder how many people it takes to pack a parachute? LOL the answer is 6 when it's us, 2 were out of view holding the chute and lanyards. We continue to make progress toward the next attempt. Things are looking really good regarding the previous issues being resolved. Fingers crossed the next one goes as planned.


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[DEMO MAN]

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Well we have a ready to roll Blucifer and are going to make another attempt. I appreciate everyone's support and all the well wishes on this endeavor. I also would never be in this position without all the work done by numerous people and shops here in Florida. I drove the car on Tuesday and the acceleration is brutal, that car terrifies and thrills me to no end at the same time. Tomorrow morning we head over, go thru tech again and then line up looking down the concrete hoping that everything goes our way this time. Flag drops and I'm off...……………………….

[TA Two Oh]

Best wishers for some clean passes! You make us even more proud of our Vipers.

[FrgMstr]

163.63 standing half mile
191.4 standing mile

2008 with Gen V intake, Belanger headers, straight pipes, tuned by True Street in McKinney TX, 2010 ACR-X tranny. Full mod list here (https://docs.google.com/document/d/1hD6XunYJfqG8bE9F4Jdl5apLDLFySgap-6Cu3vQP0XY/edit?usp=sharing). Car made 635RWHP on last dyno.

Video (https://youtu.be/_g1H6urOo_4) of a buddy of mine hitting 191.0 and missing 2nd gear.

Worth mentioning, we did run a smaller tire size in back to get the gearing we wanted for the 191 runs. Looks are not everything!

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[GTS Dean]

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This is a fabulous build and thanks for sharing the progress info with us!

Just a heads-up: I would strongly suspect that 'chute launch plate is costing you some not insignificant aero drag - even in a relative dead zone. You might try the old-school yarn tuft flow test method and experiment with different height/standoff positions since your car is running such a clean body.

[DEMO MAN]

It's official.........252.588 MPH

[TA Two Oh]

Congratulations!!!!! Awesome car. Obviously very well driven!!! Handling that kind of acceleration is no joke.

Well done!!!

[Vipes]

Wow thats amazing!! Very cool to take over the title. Well deserved with all the hard work, congrats!!!

[DEMO MAN]

Thanks TA Two Oh and Vipes, the day couldn't have gone better for us. Everything leading up to this has been a bit of a struggle but well worth it. I'm still in disbelief we are the fastest Viper in the world and the first one to crack 250 MPH. I will sit down soon and write up the day from the first half mile to the struggle to stop it from 252 MPH and everything that happened between that. I appreciate so much all the help and support I got getting to this moment and all the texts and calls that came afterwards congratulating us for the success. I will have some videos and pics to post soon I hope. I don't know what will come next but no one tell my wife that 260 isn't really that far away...………………..

[1BADV10]

Wow, congrats DEMO MAN, there is nothing like the feeling of accomplishment after all the hard work!! can't wait to see the video.

[acellr8]

Been following your thread. Congratulations! That is moving out!! Nicely done.

Ed

[FrgMstr]

It's official.........252.588 MPH

Awesome accomplishment!

[DEMO MAN]

https://www.motor1.com/news/394355/twin-turbo-dodge-viper-252-mph/

[DEMO MAN]

Thought I would take some time to explain the day and how we managed to get Blucifer over the 250 number. We had spent the day before unloading the car and going thru tech inspection, they spent time reviewing everything from the open long studs, cage, fire suppression etc and even watched as we torqued the lugnuts and checked air pressures in the tires, very in depth inspection but I completely understand the need for it. After that we checked all fluids and started taping up the seams on the car, mirrors and wipers removed already. Alpha checked and double checked all the various tunes and made some adjustments as Jamie and Dillon went over the mechanical aspects of the car. Once all that work was done we loaded the car back in the trailer and headed to dinner and got some rest for the big day to come. We were up early on Saturday and headed over to the runway even before the sun had come up. Got the car unloaded and once again started going over the tune and mechanical components getting ready for our chance to see what Blucifer was capable of. I have this tradition of putting M&Ms in the console of every Viper I have raced and this one wasn’t any exception as 3 bags of peanut butter M&Ms are in there still. At some point I will eat my 250 MPH M&Ms just like I did my 200 and 235 ones. Johnny Bohmer’s crew is getting things organized for us to head out on runway, pictures taken, videos done, safety briefing and introductions of his team members and safety crew. We eventually get onto the runway and Johnny Bohmer takes everyone thru a low speed trip down the runway to show us the ropes and explain how it all will work. After that we have driver’s meeting and start to set up for the half mile shakedown runs. IMRA ( International Mile Racing Association ) is handling the timing/speed for the event and they are set up at half mile already. I get suited up for the run which is a job to get all that gear on and then crawl into the cage and get strapped in, but I’m big on safety and push it on everyone I talk to, spend the money first on safety and then next on making the car fast. Strapped in so tight it actually hurts a little bit along with HANs, helmet, fire suit, shoes, gloves etc. but that’s the way it should be. First run of the day and I plan on just an easy run, half mile isn’t what we are there for and I don’t want to break anything. On the line, easy launch and row thru a few gears, timing lights come quick in a half mile and first run was 174.168 MPH. Not bad, car felt solid although Alpha showed me afterwards that the clutch was slipping and that we needed to get some heat in it. More adjustments to the tune and decided to heat clutch up with a quick burn out. I switched off the traction control, went out a few car lengths to get away from others and forgot that this car has a lot more power than my orange Viper, WOT and nano seconds later I’m finishing that circle that I never planned, was a bit embarrassed but back to line. Second half mile was slightly better and clutch felt better, ran a 177.329 so we were done in half mile and were moving to 1 mile. Again I don’t want to break anything as I calculated I need 1.25 to 1.5 miles to break 250 I don’t want to lean on the car too hard in the mile. I launch it like grandma going to the grocery store, row thru the gears and the car does an easy 228.414 MPH run. Alpha checks data and this is where we started having some issues and honestly we were concerned for our chances to make any bigger numbers. I won’t get into the problems as we were doing some experimenting and want to keep that to ourselves for now. We were unable to run another mile and started prepping for the 2.3 mile runs, I want to give Alpha, Jamie and Dillon credit for jumping on the issues and doing everything possible to allow me to run some more. I line up for 2.3 mile run and I know I’m now going to have to time the moment I go WOT as the car will reach top speed well before the timing lights if I just jump on it from starting line. I roll out to that point that I’ve decided in my head is the GO moment and run hard to the timing lights. Car hits 248.077 which is new world record for a Viper, I’m super excited but also realize I screwed up, mistimed that run badly and we have a car that isn’t 100% so every run could be our last for the day. Another hour plus and we go back to the line for our last run at 2.3 miles as they are moving to 2.7 afterwards. Same plan in my head except I’ve picked a new point on the runway to go WOT. Everything goes as planned except for the fact the run is slower than the previous run at 246. 372 MPH, and I’m thinking that may have been our last run of the day. I’m really bummed about it but the guys are still working on the car trying to get ready for one more. Alpha checks data and learns we did that run on pos 1, lowest HP/torque and the 93 tune, we are running C16. Turns out the driver was to blame, I turned the can bus display mounted off the windshield and with my gloves on I didn’t feel the switch turning as I did that. I’m starting to feel like this isn’t going to happen today with everything going on between the car and the driver. No one is giving up, those guys are steady working on the car determined to get it back out there for a big number. Minutes, hours click by and they keep after it, never giving up. It’s getting late in the day, we have to be off the runway at 5 pm at the latest. It’s 4:30 and we decide to make one last attempt, I get strapped in, get the car over to the starter, line up, GO………….and I leave, first gear and car is breaking up, go to 2nd and more of the same, $%#*%@ I feel crushed as I make a quick left turn and roll back to the start, our last chance just went away. Alpha quickly plugs in to that magic box, some keystrokes, and says ok go. Now I’m back on line, it’s like 4:50, lol nothing like a little pressure. I’ve been here before, I generally don’t get worked up or panic cause I know that doesn’t help but this is my last run so I do feel some. Johnny Bohmer walks up, last minute advice from him which I listen to everything he says, he knows his stuff, quick fist bump, he walks out a little ways and turns around and not sure why I even did it, not like I had any confidence in what was about to happen but I lift my left hand up and hold up 2 fingers, then 5 fingers and then 2 again…..I see him grin, thumbs up. I roll up windows, drop my face shield, thumbs up to starter and it’s on…………I ease out, I know where I need to get on it and I do. I quickly run the gears and I’m watching the tach, oil pressure, speed on the GPS and mostly over the hood. I see the speed climbing quickly and I’m really feeling good about this run. Car is feeling solid…..200 turns into 210…..220……..230……..240 and I feel it beginning to struggle a little bit but it’s still creeping up…….245……..finally 250! I’m sure I’ve got a smile ear to ear at that point and I see it settle in at 252.5 on the GPS. At this point I realize I can't see the timing light cones/flags and my car is going static. I know if I lift any at all I will never get it back so I decide to stay in it. It never drops below that 252.5 and that segment of the run feels like it lasted forever, we later calculate it was at 252.5 MPH for .77 miles. I finally see the cones, I know now I’m going to make it, I cross the first timing light, then second one and it’s hard on the brakes. Now my concern is stopping it, I’m running stock Viper calipers/rotors and Racetech pads. I move toward right half of runway and am just standing on the brakes, the car is slowing but not fast enough for me. I downshift a gear and then another trying to help slow the car. The last bit of the runway the brakes lock up and all four tires are making that noise that actually sounds really good in that moment. I get it stopped, window down, arm out and thumbs up so safety crew knows all is good. I get over to taxi/travel lanes and I head back to starting line. I already think I broke 250 but you never know how accurate the GPS is. Everyone is heading over as I approach, I’m sitting in the car as they tell me the number…….252.588 MPH………I don’t know how to describe the moment so I’m not going to try. It’s been over a week and I’m still not sure how, but I do know this never would have happened without the support from my wife, family and the entire crew involved in this experiment. I appreciate everyone’s support on this and hope you guys enjoyed it as much as I did. Now I have learned that my wife does read the posts on the forum so no one mention what comes after 250………….

[DEMO MAN]

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Sitting on the runway right after the 252 MPH run

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My friend Scottie and I, he's on his second bone marrow transplant and this time is going great!

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Jamie, Alpha, myself and Dillon right after the final run

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All the guys running the event from Johnny Bohmer Proving Grounds

[Bryan Savage]

This is super awesome. Congratulations on the record!!

Forgive my inexperience, but can't you use your parachute to slow the car? 250mph - 0mph on stock brakes sounds like the most dangerous part of this...

[DEMO MAN]

This is super awesome. Congratulations on the record!!

Forgive my inexperience, but can't you use your parachute to slow the car? 250mph - 0mph on stock brakes sounds like the most dangerous part of this...

I had planned to but I will confess to having never used a landspeed chute before and that gave me some concern about pulling it at that speed. It's a 200/300 chute which has lanyards that are maybe 4 to 5 times the length of a typical drag chute and the diameter is only about 6'. You have to stay in the throttle until the chute fully deploys and then you can get on the brakes. I was worried I might not feel the tug of the chute and without exterior mirrors I couldn't see it, inside mirror was useless as the cage and fire suppression blocks it. I felt like I could lose maybe 2 to 3 seconds or more waiting for that tug and if it didn't deploy that's a lot of time I could be on the brakes. I had made a decision before leaving the line that if we were close or over 250 it was going to be brakes only. A lot of that is due to the fact we were running the 2.7 mile at that time and only had 0.6 miles to stop, if we had been at 250 in the mile or 2.3 mile where I had more time and distance to stop I would have pulled it. I guess bottom line is I need more experience with that style of chute to give me some confidence in it's performance.

[345s-bspinnin]

Absolutely excellent run. Must have been pure adrenaline to be drag limited for 0.77 miles. That's a whopping 11s at +250mph !!!!!!

[commandomatt]

Amazing. Incredible effort and hats off to both you and your crew.

[DEMO MAN]

Absolutely excellent run. Must have been pure adrenaline to be drag limited for 0.77 miles. That's a whopping 11s at +250mph !!!!!!

Thanks, it did seem like forever...….I was really relieved to finally seeing the timing cones/lights.

[DEMO MAN]

Amazing. Incredible effort and hats off to both you and your crew.

Thank you, I give them all the credit for getting the car there, I feel like I had the easy job.

[BlknBlu]

What a fabulous read, really gets one excited about Viper ownership. Thanks for the dedication and determination to make this a reality, Just way cool.

Bruce

[DEMO MAN]

What a fabulous read, really gets one excited about Viper ownership. Thanks for the dedication and determination to make this a reality, Just way cool.

Bruce

Thanks Bruce, I appreciate everyone's support on this and we got a lot of congrats from Viper fans from all over the world.

[No hemi]

Congrats again!! wish I could have been there, Hopefully will see you at NVE4!!!

[DEMO MAN]

Congrats again!! wish I could have been there, Hopefully will see you at NVE4!!!

I will be there Angel, looking forward to seeing you guys there.

[Vipes]

Great meeting you today, was awesome to finally check this car out up close in person. It sounds mean as hell, congrats again on the record!!!


-Troy

[Viperenvy]

Vehicle will be at Amelia - stop on by.

[DEMO MAN]

Great meeting you today, was awesome to finally check this car out up close in person. It sounds mean as hell, congrats again on the record!!!


-Troy

Thank you Troy, have to say that head/cam package of yours has a nasty sound too.

[DEMO MAN]

Vehicle will be at Amelia - stop on by.

I'm really looking forward to meeting everyone and checking out the other cars there. Thanks for all the work you put into this event.

[DEMO MAN]

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I just got attached in the mail and thought I would share. Looking forward to seeing what the next year brings for Blucifer. The Bugatti Chiron did 261+ and that's only another 9 MPH so well just thinking maybe...………….

[MAMBA FANGZZ]

DOO IT!! DOOOO IT!!! DOOOOOOOOOOOOOO IT!!!! :drive:

[viperman4125]

[QUOTE=DEMO MAN;403792]42057
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I just got attached in the mail and thought I would share. Looking forward to seeing what the next year brings for Blucifer. The Bugatti Chiron did 261+ and that's only another 9 MPH so well just thinking maybe...


What modifications did you have on your 06 Viper to go that fast.??

[Unlimtd]

Need to move it to 5th vs 6th haha, Vipers fall on their face in 6th.

Not if you pull the tranny and ship it up to John Donato assuming he is still in business. He can ball peen the parts; turn it into a true six speed; and, eliminate most of the ngr. I had it done to my former supercharged Gen III. John did a fabulous job. It is a must if you are doing standing mile events since with the OEM six speed with overdrive, the lower overdrive RPMs cause the car to start to crap out at 165 MPH and creeps up from there. With the conversion, you pick up some significant speed.

[DEMO MAN]

DOO IT!! DOOOO IT!!! DOOOOOOOOOOOOOO IT!!!! :drive:

LOL, ok you convinced me :)

[DEMO MAN]

What modifications did you have on your 06 Viper to go that fast.??[/QUOTE]


The mods are extensive but they are all pretty much mechanical, the body is stock 06 coupe with no mods to it. We do remove wipers, mirrors and tape the seams to make the air flow over the car better. The taller rear tires also require a little more rake in the car for clearance. I probably spent more on safety than I did on going fast which in my opinion is how it should be done. I will say that maybe the car is approaching it's limit without some aero work to keep the back happy at bigger speeds. It does start to dance about a bit after 250 and may need a little downforce for bigger speeds. Unfortunately downforce is not condusive to going fast so it's a delicate balance to find the right combination. We are working on a few things to help with that and maybe a trip to a wind tunnel to confirm.

[DEMO MAN]

Not if you pull the tranny and ship it up to John Donato assuming he is still in business. He can ball peen the parts; turn it into a true six speed; and, eliminate most of the ngr. I had it done to my former supercharged Gen III. John did a fabulous job. It is a must if you are doing standing mile events since with the OEM six speed with overdrive, the lower overdrive RPMs cause the car to start to crap out at 165 MPH and creeps up from there. With the conversion, you pick up some significant speed.

I am running a very modified T56 with some special 5th/6th gear ratios to close up that big spread on stock transmissions. I finished that run in 6th gear and although we had issues they weren't related to the transmission. The car is gear capable of mid 270s and we expected a bigger number then the 252 but other issues kept us from getting there. I was looking for a mid 260s speed and felt that I could have done that if everything had worked as planned like that ever happens. It's not suppose to be easy I suppose so back to work to fix that issue and see what comes next.

[DEMO MAN]

I got some more pictures so I thought I would post some of them up.

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[DEMO MAN]

This is probably one of my favorite pictures, 43 seconds after this one was taken I crossed the 250 MPH mark and 56 seconds later I crossed the timing lights at 252.588 MPH. I'm still on a bit of a high from it all, I definitely can't thank those who put all the effort into the car enough and thanks to all of you guys for the support and advice I received. I know I had the easy job considering my part was over in less than a minute. Hope in the future I get to make another attempt at a bigger speed, the car is capable of a lot more and I'm willing to crawl in it for another pass.
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[USAFPILOT]

GT just isn't as mean looking as the Viper! bad ass

[Matt Dillon]

GT just isn't as mean looking as the Viper! bad ass

Even though I have 2 Vipers I guess this is just a Personal Opinion! Especially depending on WHAT Year you're talking about. :)

[DEMO MAN]

Anyone have any experience with alcohol fueled TT Viper? I'm considering some options to help with my next attempt at some big speed and want to explore anything that could help with making a 275+ MPH pass in early 2021. The car is gear capable and we are going to refresh the motor and make a few more mods that will bump the WHP and torque. Open to any thoughts, ideas or suggestions you guys may have. Thanks, David

[Matt Dillon]

Anyone have any experience with alcohol fueled TT Viper? I'm considering some options to help with my next attempt at some big speed and want to explore anything that could help with making a 275+ MPH pass in early 2021. The car is gear capable and we are going to refresh the motor and make a few more mods that will bump the WHP and torque. Open to any thoughts, ideas or suggestions you guys may have. Thanks, David

I know this is an Old thread but I'd love for you Demo Man to keep us informed when you're going to try it again, God Speed & GL!

[DEMO MAN]

I know this is an Old thread but I'd love for you Demo Man to keep us informed when you're going to try it again, God Speed & GL!

Thanks Matt and we are already starting to prep car for what we hope will be a much bigger speed. The upgrades will include more WHP/torque of course along with some aero, gearing, brake and tire mods. The engine will be pulled soon and we are going to refresh it and make some additional mods along with converting it to E85/E98. The car is currently gear capable of mid 270s although it's a bit of a handful in those upper ranges. I want to keep it street legal as that's part of the overall goal the team started with. I believe we will be ready to make another attempt in 2021 provided the world gets back to normal before then. I will keep you guys informed as we progress toward the new goals

[DEMO MAN]

Well this week we started laying out the plans for replacing the air to air intercooler with a water to air system. The air to air wasn't capable of keeping the IATs in check toward the end of the run and cost us a lot of speed. I had expected a run in the 260s but the engine management system began to pull boost, fuel, timing etc as the temps increased. We are mocking up the placement of plumbing, intercooler cores, piping etc and then will fab and install once everything fits properly. We will also be installing an ice box/pump in the car and haven't yet determined the capacity of it but expect it to be over 5 gallons including the feed lines and cores. We also are doing additional improvements to the engine, replacing the transmission, adding better safety features, and putting together a wheel/tire package to withstand the temps/speed I expect to reach. When it's all done provided my math skills haven't failed me Blucifer will be gear capable of speeds in the 280s although 275 has a nice sound to it. We are going to shorten the distance for the run drastically this time although it's still just above a mile. I will post pictures and discuss the new build as it progresses toward the next attempt.

[ACRSNK]

Great write up! Love the fact that cars bring people together and can bring happiness in the toughest of tough times.

[MAMBA FANGZZ]

Can't wait to see the 275...

[Grcforce327]

????

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[MAMBA FANGZZ]

280mph? Where was this officially clocked and recorded? That would be all over the web....What type of trans & hp?

[DEMO MAN]

Ballista Twin Turbo is a very similar setup to what Blucifer is, we both run a 3.07/3.08 differential, we both ran a highly modified G Force built T56 with custom 5th and 6th gears, I'm assuming we ran similar tire sizes since the wheel wells will only accommodate so much rubber back there, even the engine build are very similar. Now that being what it is, you would have to spin the engine to a sustained 7750 RPM to break 280 MPH which I suppose is possible if you really had a ton of confidence in that massive chunk of metal holding together at that RPM but probably unlikely. What I find even more interesting is that when BJ Motors was selling the Ballista Twin Turbo the ad bragged about it having enough HP and gearing that it was capable of 350 MPH...........let that sink in for a minute. Just a quick calculation on that is it takes 9700 RPM to hit 350 MPH, I would like to see a Viper engine that can hold together at 9700 RPM sustained for the long period of time it would take to go the miles and miles needed to get a Viper to 350 MPH. ART and Todd did a fantastic job with Ballista and the engineering is first class in that car, both impressive speeds and impressive car. For me I know the struggle and effort to setting a goal and working toward it and the set backs and misery that comes with that task, I may not make it to 275, but at some point some Viper will and I will be proud to see it happen even if it's not me. After seeing Aaron's Juggernaut build and watching Sal's Viper run an insane half mile I know I need to put some more effort into this before these guys are doing 275 in the half. David

[TrackAire]

Ballista Twin Turbo is a very similar setup to what Blucifer is, we both run a 3.07/3.08 differential, we both ran a highly modified G Force built T56 with custom 5th and 6th gears, I'm assuming we ran similar tire sizes since the wheel wells will only accommodate so much rubber back there, even the engine build are very similar. Now that being what it is, you would have to spin the engine to a sustained 7750 RPM to break 280 MPH which I suppose is possible if you really had a ton of confidence in that massive chunk of metal holding together at that RPM but probably unlikely. What I find even more interesting is that when BJ Motors was selling the Ballista Twin Turbo the ad bragged about it having enough HP and gearing that it was capable of 350 MPH...........let that sink in for a minute. Just a quick calculation on that is it takes 9700 RPM to hit 350 MPH, I would like to see a Viper engine that can hold together at 9700 RPM sustained for the long period of time it would take to go the miles and miles needed to get a Viper to 350 MPH. ART and Todd did a fantastic job with Ballista and the engineering is first class in that car, both impressive speeds and impressive car. For me I know the struggle and effort to setting a goal and working toward it and the set backs and misery that comes with that task, I may not make it to 275, but at some point some Viper will and I will be proud to see it happen even if it's not me. After seeing Aaron's Juggernaut build and watching Sal's Viper run an insane half mile I know I need to put some more effort into this before these guys are doing 275 in the half. David

I remember seeing that ART Viper at the Viper Owners Meeting in Salt Lake City. IIRC, the car was running near the 240 mph range but not sure as that was like 10 years ago. Going from 240 mph to 280 mph is literally twice as tough.

Keep on with the build, the amount of work and hp it takes for the speeds you're running is insane. Looking forward to you hitting 275 mph.

[DEMO MAN]

I remember seeing that ART Viper at the Viper Owners Meeting in Salt Lake City. IIRC, the car was running near the 240 mph range but not sure as that was like 10 years ago. Going from 240 mph to 280 mph is literally twice as tough.

Keep on with the build, the amount of work and hp it takes for the speeds you're running is insane. Looking forward to you hitting 275 mph.

Thanks TrackAire, we are neck deep in wrenching on it with mods to intercooler, heads, transmission, wheels and tires not to include the tuning. It's always a struggle to reach that next goal which makes it even more satisfying when it happens. You are 100% on target with "Going from 240 mph to 280 mph is literally twice as tough". I have heard so many times " it's only 22 more MPH to 275, that will be easy "...........ok, if you say so.

[TrackAire]

Demo Man,
Can you verify what specific model tires you use for these top speed runs?

[DEMO MAN]

Demo Man,
Can you verify what specific model tires you use for these top speed runs?

I will use the same tire the Koenigsegg Agera RS used, which is Michelin Pilot Sport Cup 2 tires. They took them to 280 plus without any issues and everything I read regarding that seem to indicate that they were capable of that speed and more.

[TrackAire]

Hard to argue with Michelins when you see this kind of abuse they can take:

https://www.youtube.com/watch?v=ryDZhDPaYdo

[rgrhorton]

Just joined the forum yesterday and this thread was a great read. Congrats Demo on your accomplishment. I hope the team enjoyed those M&M's. =)

[James]

This thread is a fantastic read. Thanks for sharing in detail all the work you put into Blucifer. I keep my fingers crossed for you guys and your future endeavours in increasing the top speed.

[DEMO MAN]

Thanks rgrhorton and James, we are working toward the next attempt at some big speed. The heads are pulled to be reworked along with some other components. We are designing the water to air intercooler to keep the IATs down for this attempt. In addition to those items there is a lot of other work going on from the transmission to some aero to keep that big Viper butt from dancing left and right quite so much at speed. We are doing some more safety upgrades as every mph adds risk and it's always best to be prepared for it and hope it's never needed. Here are a few pics of the current state of the car, I think the best option is to open the top of the engine and just pour in about 600 more WHP and see what happens. :)

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[TrackAire]

Maybe time to start looking at some sort of version of a drag wing for minimum resistance but added stability....something like this:
https://www.lgmotorsports.com/lg-c7-drag-wing.html

A mini splitter on the front to keep the air flow attached to the flat under body would probably help too.

Lastly, putting some sort of spats on the front half of the front well arch opening will help keep that tire from upsetting the air flow down the side of the car.

As I'm sure you know...anytime you are doing any aero mods at the speeds you're traveling, you have to take baby steps because the energy that is acting on the car is so huge and even little things can cause big changes, sometimes negative.

Looking forward to see what you come up with.

[DEMO MAN]

Maybe time to start looking at some sort of version of a drag wing for minimum resistance but added stability....something like this:
https://www.lgmotorsports.com/lg-c7-drag-wing.html

A mini splitter on the front to keep the air flow attached to the flat under body would probably help too.

Lastly, putting some sort of spats on the front half of the front well arch opening will help keep that tire from upsetting the air flow down the side of the car.

As I'm sure you know...anytime you are doing any aero mods at the speeds you're traveling, you have to take baby steps because the energy that is acting on the car is so huge and even little things can cause big changes, sometimes negative.

Looking forward to see what you come up with.

We definitely are taking baby steps on the aero, a very small vertical plate located at outer edges of hatch near the rear, and a diffuser that's a little taller and longer than stock. I'm keeping some downforce on the rear of the car with the rake we run, the front is beyond planted but that rear sometimes has a mind of its own over 240 plus. Hopefully we are able to tighten that up some with these changes. For the most part as long as the car is pushing the air it's relatively stable but let it become static, then the air starts pushing back and the fun begins. It's a very fine balance between downforce, speed, stability etc, I'm making those little changes to help keep the car happy and everything working together. It's coming together, soon I will be strapping in Blucifer and watching over the hood at the runway coming at me.

[DEMO MAN]

Blucifer's new go faster part.

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[DEMO MAN]

Posting some more pictures of Blucifer's prep work and parts for the next runway trip. Here are the Greg Good heads I had refreshed by Nelson Competition over in Pinellas Park Florida. Overall there was very little needed, seats, decked the heads, inspected everything, checked springs, lifters, pushrods, rockers etc. The tune in this car is right on the money as the engine is looking great thru this process.
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[DEMO MAN]

Here are the exhaust headers for Blucifer. Lakeland Speed and Custom fixed a few small cracks and recoated the headers. They look like brand new. Lakeland Speed and Custom is doing the bulk of the work on Blucifer and they are doing some amazing work.
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Here are a few more pictures of the 6XD sequential manufactured by RTS up in Kannapolis NC. The machine work is insane on this transmission, just look at the details in the case!

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[bluesrt]

looks exspensive/ nice transmission

[DEMO MAN]

looks exspensive/ nice transmission

Thanks, I have discovered that "speed costs" lol, a cocaine habit might be cheaper but not as much fun I'm guessing.

[DEMO MAN]

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Lakeland Speed and Custom is starting the aero work with the front bumper, other aero work is also planned for the rear in the coming days. I had always heard that above 200 MPH the the back of the Viper starts to dance around, I can say that isn't true but at 240+ it does start moving side to side and we hope to tighten that up with some aero adjustments at the rear of the car. All of these aero adjustments will be small changes, it's a balancing act between speed and downforce and we don't want to go too far in either direction.

[DEMO MAN]

Blucifer continues to come together and we are making progress on the piping for the turbos to the new water to air intercooler. Just being honest finding the right path to run all the piping and water hoses and making it all function as it should is a tough process, we are getting there though. I have much respect for those like Nth Moto who do this daily and make it look like it came from factory that way. Other parts continue to come in including parts and tires from Jon at Parts Rack, harness from TeamTech along with other go fast stuff. So great to work with vendors who live and breathe Viper every day. Here's a pic of the piping process.

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[DEMO MAN]

Here are the rear tires that are going to take Blucifer to 275+ MPH. These are Michelin Pilot Sport Cup 2 from Jon at Parts Rack ( Thanks for the great service Jon ), these will totally fill the wheel well at 28.15" tall not to include the added height that will come as the centrifugal forces began to act on it at speed, they will definitely grow in height. We generally add some additional rake to the rear to allow for this. In the past I have heard tire rub as the car approached 225 and above, the downforce does push the car lower at bigger speeds.

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[DEMO MAN]

Here's the TeamTech 6 point harness I will run. Amazing job they did, blue and silver to match the car and extremally well made product. Other harnesses I've used tend to slip off the HANS device and I'm always double checking them, this one I don't see that as a possibility due to how it's made. Looking forward to strapping in this and heading down the runway.

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[JonB ~ PartsRack]

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.

With my extensive study in AE, I can promise you without a wind tunnel visit that those fog light baffles will NOT stay on there above 7 mph without some more fabrication!

Otherwise, glad to help and will be proud to have a PartsRack decal on BLucifer !

[DEMO MAN]

With my extensive study in AE, I can promise you without a wind tunnel visit that those fog light baffles will NOT stay on there above 7 mph without some more fabrication!

Otherwise, glad to help and will be proud to have a PartsRack decal on BLucifer !

LOL, well we planned to add some really heavy duty duct tape :)

[Viperenvy]

Ahhhhh

[DEMO MAN]

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Here's a pic of the rear wheel/tire combo. Thanks to Forgeline for the 20" by 12" wheels, these things are so light weight, so perfect, I really hate to get them dirty. The tires are Michelin Pilot Sport Cup 2 245/30-20s from Jon B at PartsRack, and are definitely the right tires for 275+ MPH run. Thanks to Forgeline and TireRack, your support of the Viper community has helped untold number of owners in the past and continues to do that. Front tires will arrive mid Jan and are 295/30-19s. Once we have them mounted on Blucifer I will post a picture of it.

[Unlimtd]

There is a classified series of DARPA modifications that allow transwarp speed in a Viper. It can only be used on Mexican roads. Results are Top Secret. Happy New Year. Felice Anno Nuevo!

[DEMO MAN]

We put the new 20" Forgeline/Michelins on Blucifer and I can't help but notice the brake rotors look so small on the rear now.

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[Steve M]

ARP wheel studs?

[DEMO MAN]

The wheel studs are ACR-X and came from Tom Francis, fit was perfect, some of the past ones I've bought were not quite right and were hammered in to make them fit. If I remember correctly Tom has these made by NASCAR shop that machines them to ACR-X specs in Charlotte NC area, which explains those yellow lug nuts.

[DEMO MAN]

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Lakeland Speed and Custom is getting all the piping routed and tig welded. They are doing a fantastic job considering how little space there is to work with in these Vipers. Once all the V Band clamps etc are in place and welded along with the piping they will locate the water to air intercooler and make those connections. I'm ready to hear Blucifer fire up again and get back on the road and runway.

[DEMO MAN]

You know how all your friends like to make all these suggestions on how to spend your money to make your car faster.............." you know David what you really need to do is ( insert some ridiculously expensive component ). " I need to learn how to spend my friend's money or at least learn how to tune them out. So here are the new turbos for Blucifer since you can never have enough WHP and boost from what I understand, or at least that's what my friends have explained.......

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[ViperPete]

Insane!

[DEMO MAN]

Yea sometimes I feel just a little bit insane although I don't think you were referring to me :)
It is getting a little crazy what it takes to put all this together to have a shot at making the numbers. I expect to have it all together and ready to make the attempt in 2021. Hopefully all will go as planned, and we set the bar a little higher for others.

[LATAMUD]

Excited to see the next run results!

[DEMO MAN]

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The (2) 1000 HP rated Precision water to air intercoolers have arrived and this gets us closer to the goal. I really hope to have it down at NVE but the delays in components may not allow for that.

[DEMO MAN]

Afternoon everyone, been a while since I posted anything new on Blucifer's progress so I thought I would post a few things. The overall progress has been slowed by the year and half of Covid, component leadtimes have been long and often delayed but it's gave us time to redesign some items that will help me to achieve the new goal of 275 MPH +. The intercoolers for one are not up to the task of keeping IATs in check so we have basically doubled the size of them. They are now rated 2000 HP each and hopefully that does the job as I'm running out of room to go much bigger. We also have spent a fair amount of time going over all the materials out there to keep the heat in the pipes feeding the turbos along with the turbos themselves. We decide on a combination of coatings on the parts plus some rather expensive wraps. We also did some really creative stuff to assist that effort of keeping the IATs in check. I will post pictures in the coming months and probably a lot after the attempt of the build leading up to the run. The diffuser and some vertical stabilizer designs are almost complete and hope that helps with the wiggle that shows up over 250. We are reconfiguring the fire suppression system to improve the nozzle locations. Fire suppression is a combination of automatic and manual nozzles. I like back up plans when it comes to safety. When it came to the fuel tank I decided that the factory tank had to go to make room for a fuel cell with bladder/foam arrangement. Probably freak out some to see it happen but we cut out the trunk of the car to remove the factory tank and allow the fuel cell and a new battery enclosure to be installed. The new trunk floor/walls etc will be aluminum and some stainless steel. at this point I'm so deep into it being a racecar there's no sense in trying to keep it stock in some areas although the AC and radio will still work. Like to hear what you guys think and hope that I can put up a big number for the Viper Nation once the cool weather returns to FL ( just so y'all know below 60 degrees is considered freezing down here ). Appreciate everyone's comment and suggestions and especially appreciate those that helped with this build. David

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[DEMO MAN]

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[DEMO MAN]

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Thought I would share some pictures of the new custom built intercoolers by Bell Intercoolers. These are rated 3000 WHP and definitely fill up the hatch space. Shutting the hatch was done very gently the first time but there is enough clearance.........barely. I'm sure you guys noticed that that Blucifer is a little different than most twin turbos with this build. I like different and thinking outside the box is my thing. I'm sure I will hear a lot of comments about boost lag etc but I'm building a landspeed Viper to break the 252 MPH record that I set on Jan 18, 2020. I'm chasing 275 plus MPH now and I have time to get thru the lag. I also have a progressive nitrous system to help with the launch and honestly that V10 doesn't need the boost to launch. There are advantages and disadvantages to front and rear mounted turbos and we are working thru those. When it comes down to it I'm confident that I will have the WHP/torque it takes to break 275. I do need to continue the work on some of the aero to help with that wiggle that shows up as it closed in on 250 but we have some thoughts on that and have started working on that also. I don't have a date yet to make the run but I will keep you guys advised. Appreciate the help and support from everyone on this attempt with special thanks to Jon B, Teamtech, Forgeline, Precision, 6XD Sequential Transmissions, and others.

[James]

I am always looking forward to updates in this thread, highly fascinating! Keep up the good work and all the best with your goal!!

[GTS Dean]

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You mentioned several times you have a new diffuser for the back and we haven't seen photos of it yet. Looking at this photo reminds me that the F-1 aero wizards have used "blown difffuser" designs on the cars at various times in the recent past. The idea is that the exhaust gasses exiting in a specific part of the tray helps to create more air velocity and more downforce. There's a lot of CFD computer modeling that goes into this, but even without - it intuitive work could help you keep that tail in line.

[DEMO MAN]

WOW that pic definitely shows the aero work that went into that car. We scrapped a few of the early designs on the diffuser and and I think I'm on V5 or 6 at this point. With all the delays I have more time to put into the aero. It's not something I want to get wrong so if possible I will check on wind tunnel time up in NC. Adding the weight to the rear will also help as the back gets light as I approach 250. I also will play with the rake of the car, we have data from previous runs from 228 to 253 MPH and I will use that to make minute adjustments. The key is to make tiny adjustments and only one at a time until we see what that does to the car. I will be hanging the turbos back on the car soon now that the intercoolers are located. Once that is mocked up and everything fits I will fab the final design on the stainless steel trunk floor that supports all the components. After that it's the new fuel cell and the 2 ice boxes that are located between rear wheel wells and rear bumper. It's been an interesting build since I decided to put everything out back. Love to hear what you guys think about any of it. David

[GTS Dean]

Another good photo from the same period. Check out the badging on the rear bodywork! Are you going to pack the intercoolers with dry ice like the 1400hp 1.5L turbo F-1 teams used to do for qualifying and the start of the races?

[DEMO MAN]

The exhaust on Blucifer does exit into the diffuser similar to the pictures you posted. The ice boxes actually use a chiller system that brings temps close to freezing. I haven't done any real world testing yet with it but the biggest issue we had on the 252 MPH run was IATs. It cost me a lot of speed as the engine management system kept pulling timing, then fuel and lastly boost as the IATs got too high. I had expected a 265 to 268 MPH run but was still happy to break 250. Hopefully this new system will keep those temps in check, if not the nitrous is programmed to come back in and help to maintain those IATs.

[Steve M]

...if not the nitrous is programmed to come back in and help to maintain those IATs.

If you don't like the current atmosphere, just bring your own in a bottle.

Very cool project, and always enjoy seeing pics of updates.

[DEMO MAN]

If you don't like the current atmosphere, just bring your own in a bottle.

Very cool project, and always enjoy seeing pics of updates.

LOL exactly, wish I could bring my own tail wind....

[DEMO MAN]

The build continues, we had to move the turbos around a bit to accommodate the fit of the piping and intercoolers. All the mounts for keeping everything in place back there are being fabricated and tig welded in place. Real shame to grind and weld on that beautiful cage but it will be repainted when we are done. Once all these parts are in final position, we will mock up the ice boxes which fit between the rear wheel well and rear bumper. There is actually a lot of room there to put one on each side, need to keep that air traveling up front as cool as possible.

On another note, it's possible the attempt at 275+ will happen at another location instead of the shuttle runway. It's obliviously my first choice with the quality of the runway and the organization that runs that event but timing may not work out. I looked for another location that would allow for 1.25 to 1.5 miles which is the distance I calculate I need to make speed and found a runway in Loring Maine. It's an old bomber base that was closed years back and an organization named Loring Timing Association runs several events there. The runway is 2.5 miles, and they have a 1.5 mile run set up with certified timing very similar to the shuttle runway. Everything I checked appears to show it's a well ran event and many speed records have been set there. Has anyone ever been there or ran there and if so, can you advise me on how it was, in particular what the quality of the runway is like? It's a long road trip, probably 24 hours total of driving vs a little more than a hour but I'm committed to make this happen in 2022 regardless of where it has to be at. Thanks David

[Fatboy 18]

Unofficial, of course.

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I bought one of these for my Sons 1ltr Kia daily driver :smilielol:

[DEMO MAN]

LOL I bet he got a good laugh out of that for a KIA, and 1L??? wow i think the go carts I raced back when I was a kid had more displacement. I'm definitely going to miss your humor in this forum, I've got so many laughs from your "Joke of the Day" posts. If I ever get over to UK would enjoy a meet up and conversations over a few drinks.

[DEMO MAN]

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We laser cut a new floor for the trunk to support all the components such as turbos, intercoolers, dry sump tank etc. The original one made was done in 3 parts and although it was functional, I wanted a cleaner look. We will fit it next week, make new brackets to support everything and then start mounting the components again. Once everything has been mounted, we will disassemble the parts for the various coatings from powder paint, heat coatings, anodized or others. I really want this Viper to be a show piece and fast so it's taking a lot more time to work both of those into this car. Happy New Year to everyone and hope 2022 is good to us all.

[DEMO MAN]

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Here are some images of the revised stainless steel trunk floor to support all the components. The quality of the fit and appearance of this version is much cleaner than the original one.

[DEMO MAN]

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Here are the turbos mounted to the new supports, the recessed box holds the battery which will have 0.5" high temp insulation to protect the battery from any heat off of the hot side of turbos. I have this thing about symmetry, and this configuration definitely shows that.

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[DEMO MAN]

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Here is a view with the bumper installed, you can barely see those turbos, almost stealthy :)
We are currently running hot side pipes, then cold side after that. I expect to have everything tig welded and off to coating within 2-3 weeks max. Still lots to do after that but it's getting there. While the pipes, etc are being coated we will be doing some head and intake work to allow for that big boost needed.

[Steve M]

Love it.

Can't wait to see it run.

I won't ask how much it all cost, but do you have any idea how many hours you've poured into this project?

[DEMO MAN]

If I just estimate the man hours from the previous version of Blucifer which was front mounted turbos to this revision to rear mounted turbos, new intercoolers, fab work etc I would say we have maybe 400 to 450 hours invested. I don't think that's a lot considering a some of it was spent on the design side vs the fab/assembly side. These hours do not include all the efforts put into the pre rear turbo car to include engine work, cage, fire suppression, and a lot more. As to cost, honestly it would be only a guess as I've been more concerned with the goal of 275+ vs do my kids really need a trust fund :car-smiley-003:

[ViperPete]

If I just estimate the man hours from the previous version of Blucifer which was front mounted turbos to this revision to rear mounted turbos, new intercoolers, fab work etc I would say we have maybe 400 to 450 hours invested. I don't think that's a lot considering a some of it was spent on the design side vs the fab/assembly side. These hours do not include all the efforts put into the pre rear turbo car to include engine work, cage, fire suppression, and a lot more. As to cost, honestly it would be only a guess as I've been more concerned with the goal of 275+ vs do my kids really need a trust fund :car-smiley-003:

What he means to say is that the cost is so high that he doesn't want to reveal it LOL. He knows exactly where he's at in it ;)
Keep at it David, love watching this thing evolve and kick ass.

[GTS Dean]

The build continues,

I looked for another location that would allow for 1.25 to 1.5 miles which is the distance I calculate I need to make speed and found a runway in Loring Maine. It's an old bomber base that was closed years back and an organization named Loring Timing Association runs several events there. The runway is 2.5 miles, and they have a 1.5 mile run set up with certified timing very similar to the shuttle runway. Everything I checked appears to show it's a well ran event and many speed records have been set there. Has anyone ever been there or ran there and if so, can you advise me on how it was, in particular what the quality of the runway is like? It's a long road trip, probably 24 hours total of driving vs a little more than a hour but I'm committed to make this happen in 2022 regardless of where it has to be at. Thanks David

Thanks for the update on the fantastic build! Do you plan to run diffuser strakes like the ACR? They probably would help your stability at speed.

Loring is where my wife's dad was stationed when he was flying the first B-52s for SAC in '57-58 during the Cold War. Two very long parallel runways - one asphalt, one concrete. It had something like the second-largest U.S. nuke stockpile during operations. It closed in 1994. https://military-history.fandom.com/wiki/Loring_Air_Force_Base

[Fatboy 18]

LOL I bet he got a good laugh out of that for a KIA, and 1L??? wow i think the go carts I raced back when I was a kid had more displacement. I'm definitely going to miss your humor in this forum, I've got so many laughs from your "Joke of the Day" posts. If I ever get over to UK would enjoy a meet up and conversations over a few drinks.

You would be most welcome :very_drunk:

[DEMO MAN]

Thanks for the update on the fantastic build! Do you plan to run diffuser strakes like the ACR? They probably would help your stability at speed.

Loring is where my wife's dad was stationed when he was flying the first B-52s for SAC in '57-58 during the Cold War. Two very long parallel runways - one asphalt, one concrete. It had something like the second-largest U.S. nuke stockpile during operations. It closed in 1994. https://military-history.fandom.com/wiki/Loring_Air_Force_Base

We have a custom designed diffuser that actually is longer and taller than the ACR one, comes beyond the rear of the car closer to about where the bumper ends and the benefit is stability. Up on the area where quarter panels meet hatch, we will run vertical strakes that also help with stability. It's a very delicate balance between downforce and speed, big downforce hurts speed but at 240 MPH+ there are wiggle issues that make me drive the car a little bit more than I want to.

Loring's longest runway is 2.5 miles long and we would run about 1.5 miles of that. I know motorcycles have been to over 300 there so I suspect the runway is in really good condition.

[DEMO MAN]

What he means to say is that the cost is so high that he doesn't want to reveal it LOL. He knows exactly where he's at in it ;)
Keep at it David, love watching this thing evolve and kick ass.

LOL, yea I always have been told " speed costs, how fast do you want to go ". That is definitely a true statement. I think $1000 per MPH is about the right number :)

[DEMO MAN]

Hot side is progressing slowly, but we are getting there. We are close to turning down the side sill which will be quick since it's a straight run. I suspect we will be done early next week with hot side and then move over to getting the cold side done. Using a lot of pie cuts to get the shape I want/need but I will hopefully be able to mandrel bend a lot of them at a later date using less tig welds. Once the hot side is completed it will be coated and wrapped.

50637

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50639

[DEMO MAN]

Today was tig welding party for the hot side piping. We tacked everything together, made adjustments, tacked it together again and then made a few small adjustments until the fit was exactly what we were looking for. We added some flex into the system after some discussion about movements on the hot side as it heats and cools. Here are a few pictures of today's work, the welds and pipes haven't been cleaned up yet, we would normally polish everything a little bit with scotch-brite pads and fine sandpaper.

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50650

[DEMO MAN]

The intercooler pumps arrived today. I'm working on location and design of mounting brackets for them along with hose routing. These are each 40 GPM pumps, and the intercoolers are rated for 40 GPM also. Each side has its own ice box and chiller so I'm hoping this keeps those IATs down low for the entire run.

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[ViperPete]

Lookin good David. You've got some great TIG skillz. I tried it for the first time last weekend. Totally different animal than Mig welding

[DEMO MAN]

Thanks Pete, it's coming along slowly. I've reworked several components trying to get everything perfect. I would have been done already if it wasn't for me constantly doing that. I did make the first connection from the turbo to the intercooler yesterday. Today I'm are working on the layout of the cold side pipe from outlet of intercooler to side sill. This Tuesday thru Thursday will be a lot of tig welding to get those parts finished up. I spend a lot of time calculating the best route so we can keep the bends to the radius that allows for best flow. Then we make all those pie cuts to make that bend. Really hope to hear it running soon, it's been sitting on that lift way too long.

50710

[DEMO MAN]

Hot side piping is coming along, will be almost to the headers by the end of the weekend. Also working the cold side at the same time but in most cases I need to plan where everything is going to fit so I don't have pipes in direct contact with each other or too close to frame or other parts. New wastegates have arrived and we will be tig welding the pipes for it next week. I would estimate that it will be together enough to start it in maybe 4 or 5 weeks, and I will share a video of that when it happens.

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[Steve M]

Are those DSS axles I spy in there?

[DEMO MAN]

Are those DSS axles I spy in there?

Good eye, yes, they are. I will keep the DSS half shafts but I have to get a new driveshaft to replace the one I used for the last run. I switched to a sequential vs the 6060. I've been looking at the CF one that Doug Shelby sells.

[Steve M]

Good eye, yes, they are. I will keep the DSS half shafts but I have to get a new driveshaft to replace the one I used for the last run. I switched to a sequential vs the 6060. I've been looking at the CF one that Doug Shelby sells.

I've beat the piss out of my axles and they haven't skipped a beat, granted I'm not quite at your power level.

Does the sequential require a longer or shorter driveshaft?

Have you done the calculation to see what the driveshaft critical speed is for our stubby driveshaft, and how it compares to what you are anticipating doing?

[DEMO MAN]

I've beat the piss out of my axles and they haven't skipped a beat, granted I'm not quite at your power level.

Does the sequential require a longer or shorter driveshaft?

Have you done the calculation to see what the driveshaft critical speed is for our stubby driveshaft, and how it compares to what you are anticipating doing?

The sequential transmission is a little longer, so we moved the mount back maybe about 4" or so. As to making a critical speed calculation, I haven't done that as of yet. For the most part the Viper driveshaft is so short, the alignment with the differential keeps it level and combine those factors with the CF driveshaft which is the best choice regarding those vibrations from the higher RPMs I don't really anticipate it being an issue.

[DEMO MAN]

Still making that slow progress on Blucifer. Today was wastegate location and coping the pipe along with some additional work on cold side and hot side pipes. I had to make a few minor adjustments on hot side to get the turn outs over frame to fit perfectly. I will also make some really minor adjustments to wastegate locations to get a little more room between them and the turbos. Basically, moving them about a 1/4" forward. The down pipes for the wastegates will exit thru the belly pan so I won't cut them until I have some accurate lengths calculated, plus I may need to offset them with pie cuts if they exit on top of a diffuser strake.

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[DEMO MAN]

Today we worked on hot side pipes and getting them heading toward the exhaust headers thru the side sills. Have a few more feet to complete that connection from turbos to headers. Also started up top at the intake and began modifying the cold side pipes to fit the new layout for turbos and intercoolers. Even thou this project seems to be taking forever I am starting to see some light at the end of the tunnel. Game plan is to get pipes, oil and fuel lines done and then start it up just to go thru all the systems and make sure everything is working properly. Then as crazy as it sounds, we are going to take it all back apart and send components off for coatings and paint. Plan some engine work while that's happening and then one more complete assembly, some testing and let's see what it's capable of.

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50802

[DEMO MAN]

Finally, are just down to a few final tig welds and the hot side will be done and ready for Jet Hot coating. Then the cold side will be completed while these pipes and turbo housing are shipped off. I feel like it's getting there although it's always slower than I anticipate. A lot of that is on me, I keep fine tuning every part even when there is no speed advantage to doing so, strictly for the appearance aspect.

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[DEMO MAN]

Hot side is a few inches of pipe away from completion at this point, so I'm sure we will have it completed by early next week. We are working on the cold side this weekend along with mounting the scavenge pump for the turbos. It's starting to get busy back there and we still have more components to add along with the lines and wiring. After that we will plumb the 4" air intakes for the turbos up to the custom air scoops. I want to pull in the air in a location that gives the turbos cleaner cooler air vs down in the dirty air. New clutch from Nth Moto also has arrived, quad carbon and typical of Aaron's parts and his builds this thing is a work of art. Going to get it installed in the coming weeks. Process still seems to be slow to me but it's getting there. Can't wait to hear it running again.

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[No hemi]

Lookin great, It was a pleasure hanging out with you and the others sunday, looking forward to hear Blucifer run !!!

[DEMO MAN]

Lookin great, It was a pleasure hanging out with you and the others sunday, looking forward to hear Blucifer run !!!

Was great to see you guys and enjoyed catching up. Hope to see you guys more often now that you're in the area.

[DEMO MAN]

Getting ready to crate up hot side and ship off. Then back on finishing cold side, oil lines for turbos and dry sump. After that it's back up top to work on locating components and fabricating brackets/braces to support all the pumps, coolers, etc. Below is passenger hot side components ready to be packaged.

51030

[DEMO MAN]

We fabricated the stainless bracket for the scavenge pump and installed it on the bracing directly behind the differential. Everything is installed with ss rivnuts and ss hardware even thou at some point I will disassemble it all and powder paint all the parts. I want to start the car and run a few passes before we take it back apart just to make sure everything works as planned. If there are any issues, we will adjust and run again. Once I'm good with how everything is functioning, we will disassemble it for paint, polishing etc.

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[DEMO MAN]

Here are a few pictures of the turbo drain hoses connected to the scavenge pump. I wanted to use better hoses as in the past it seems that most that I bought and put together from Earl's, Russell, etc all seem weep after some time has passed. I had these made at local hydraulic hose shop that has done work for my company's equipment in the past. These hoses use a compression fitting and are rated for 1000 PSI.

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[DEMO MAN]

Scot at Prefix set us up with some Prefix/Jesel rocker arms. These things look like they will handle any amount of WHP and RPM. Will be doing some more component locating over the last few days of this week. Intercooler pumps will be one of my tasks along with battery box. New injectors, fuel pump, and filters are ordered, -12 feed lines for E-85 look huge for some reason, I'm guessing my MPG won't impress any Prius owners.

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51130

[DEMO MAN]

Mounted the intercooler pumps on top of the battery box, just tack welded for now to see how all the plumbing works out. There's a lot more components, wiring, piping etc going back here so I suspect it's going to get a little crowded but still more room than shoving it all up front.

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[DEMO MAN]

We finished up the upper cold side piping and I decided to move the Moton reservoirs up top just to make it easier to adjust vs pulling off belly pans to get to them as the previous mounts were done. Tack welded some stainless tabs on the pipe and used roll bar clamps to hold the Moton parts. Once everything is finalized, I will have the have the tig welding completed and will have the piping painted again to match the car. I'm wanted a really clean look to the build and hope it turns out as planned.

51134

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51136

[DEMO MAN]

Got the hot side pipes back today with the coating completed. I'm probably going to put a sleeve over these pipes to help keep the heat in the exhaust and turbos. I hear a lot about how coating and wrapping isn't good long term for the pipes, but I need less than 30 seconds and I'm fairly certain they will last that long :)

51323

[DEMO MAN]

Started putting the hot side back together today. The blankets for the turbos should be here in a few weeks. I have some Design Engineering sleeves coming to cover the hot side from front to back. I expect it to arrive this week, so I won't be able to put the complete hot side together until it arrives. Had some help over the weekend, Bart put the new ACR-X front rotors on, thanks Jon B for getting those for me. Bart also cut some clearance in the console area so the 6XD sequential will fit. Then we measured for a new CF driveshaft, and I got that ordered from Doug Shelby. I can see some light at the end of the tunnel, even if it's a really dim light :)

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51389

[usmcfieldmp]

The build is looking great!


I'm probably going to put a sleeve over these pipes to help keep the heat in the exhaust and turbos. I hear a lot about how coating and wrapping isn't good long term for the pipes

I'm curious on the effectiveness of each and potential problems. I've wrapped a lot of systems with DEI Titanium Wrap and have yet to have an issue. My understanding has always been that wraps tend to hold onto moisture and can pre-maturely rust your pipes, but this has always been associated with street-driven daily cars. Well, that, and that the higher heat in wrapped/coated items can lead to the premature failure of welds.

[DEMO MAN]

The build is looking great!



I'm curious on the effectiveness of each and potential problems. I've wrapped a lot of systems with DEI Titanium Wrap and have yet to have an issue. My understanding has always been that wraps tend to hold onto moisture and can pre-maturely rust your pipes, but this has always been associated with street-driven daily cars. Well, that, and that the higher heat in wrapped/coated items can lead to the premature failure of welds.

I hear the same comments from others although I've never seen it myself. For me I'm using all 304-L stainless so I have to believe that isn't going to have the corrosion issues that others have had. I suspect the problem is a much bigger issue with steel pipes and as you said, daily drivers. I need to get the heat to the turbos so as far as I'm concerned anything that helps with that I'm going to do. I've never heard anyone talk about weld failures but if there corrosion then I'm sure that's a possibility. I'm not looking to make mine into a daily driver but I will do some car show/events after the run.

[TrackAire]

Demo Man,

You have a pm.

[usmcfieldmp]

I hear the same comments from others although I've never seen it myself. For me I'm using all 304-L stainless so I have to believe that isn't going to have the corrosion issues that others have had. I suspect the problem is a much bigger issue with steel pipes and as you said, daily drivers. I need to get the heat to the turbos so as far as I'm concerned anything that helps with that I'm going to do. I've never heard anyone talk about weld failures but if there corrosion then I'm sure that's a possibility. I'm not looking to make mine into a daily driver but I will do some car show/events after the run.

To be clear, weld failures I've only seen discussed with tubular turbo manifolds. High heat and stress that I'm sure is actually only a problem for people that haven't properly braced/supported the turbo.

[DEMO MAN]

After the turbos were coated and reassembled, I installed blankets on them to ensure I can keep the heat in the turbos. I'm in the process of wrapping/sleeving the hot side pipes and getting them installed. The cold side pipe completion is on hold at the moment as the heads are at Greg Good's place getting some work done. Pulling the intake/heads caused us to lose the ability to locate the pipes onto the intake. As soon as they are back, we will be back onto finishing that cold side.

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[DEMO MAN]

Received new fuel rails from Prefix, -12 AN fittings on feed and return. These are the largest fuel rails I've ever seen for a Viper, I feel like they will flow more than enough E85 to make the WHP needed to make speed. The machine work is fantastic on these parts. Prefix is one of those companies that you can count on to produce only the best quality, they never disappoint.

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[DEMO MAN]

The explosion proof bellhousing arrived today. After a lot of thought about the RPM, clutch, my feet and overall safety I felt this would be a great addition. We have to index it in the coming weeks but that's fairly straightforward and shouldn't be too tough to do. Clutch is Nth Moto quad carbon and I suspect that's more than enough to handle the WHP and torque. I still have a lot of assembly to complete and there are some components that haven't arrived yet but the ship dates for them are getting closer.

51801

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51803

[DEMO MAN]

Seems like the build is taking forever to get Blucifer ready for that 275 MPH attempt. Everything takes longer than expected and in some cases it's my fault as I tend to rework things 2 and 3 times to make it perfect even if it doesn't affect performance. Sent the heads and intake to Greg Good to rework his original work, CNC is far more accurate and these heads/intake were done by hand many years back. He added beryllium copper exhaust seats and Inconel exhaust valves to hold up to the heat produced by big boost. In addition to that he drilled and tapped the rear water jackets in the heads to get rid of the heat issues generally associated with those rear cylinders. Now it's time to ring the heads/block and reassemble it with copper head gaskets in addition to a little refresh on bearings and rings. Been a long time since I've heard it running, probably will be months more but at least the process is heading in the right direction. Here are some pictures of the heads and intake work.

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[DEMO MAN]

52750

Here is block after being decked and a recessed groove cut for fire rings. Heads will receive a similar machined groove and a hoop will be installed in the head that protrudes into the block groove. I will use copper head gaskets and this method will allow for much higher boost. Copper gaskets are .062 thick. I think the general rule is that this method works well for boost over 25 lbs. I'm expecting my new billet crank and rods/pistons soon and the assembly work will start. Really want to have it back together soon and ready to make an attempt at speed.

[ViperNC]

https://www.msn.com/en-us/autos/enthusiasts/watch-street-legal-2006-ford-gt-reach-310-mph-in-standing-mile-sprint/ar-AA15hu5J?ocid=msedgntp&cvid=630ed13ca89e4592b77bf314d5859f9c

And then there's this.... :United_States:

[GTS Dean]

That's mind-boggling! Calvo and Nth are making that HP+ on Vipers, but the frontal area and drag on the Viper are much greater than the GT. It's just more aero efficient. Congrats to all on that amazing effort.

[DEMO MAN]

That's mind-boggling! Calvo and Nth are making that HP+ on Vipers, but the frontal area and drag on the Viper are much greater than the GT. It's just more aero efficient. Congrats to all on that amazing effort.

I agree 100% on that aero comment, I think if I reach 275 that's probably close to the limit of a Viper without some serious aero mods.

[DEMO MAN]

Finally getting around to installing the fuel cell in Blucifer. The custom-made tank/bladder from Fuel Safe holds approx. 14 gallons and is set up for E85. Once all the fitment is completed, I will install the fuel lines, -12 for feed line and -10 for return plus a -6 vent line that runs back up by the fuel fill cap. The fuel cell/lines will be covered with formed aluminum or stainless steel once everything is positioned. In addition to the covers, we are working on a bulkhead to separate the drivers compartment from the rear hatch area. When I first started with putting the turbos at the rear, I thought I had so much room to work with, it is quickly getting tight back there. I still need to figure out where to position the fire suppression bottles plus the nitrous and C02 bottles. I'm trying to keep all those items in the rear hatch area to keep weight on the rear.

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[DEMO MAN]

The heads were sent to shop to cut fire ring groove and install the fire rings to match the groove they cut into the block/sleeve. Waiting on pistons to assemble the engine. SCE copper gaskets will be used with the fire rings to allow for that big boost we need.

52801

[DEMO MAN]

Engine is going back together, billet crank, custom rods and pistons, all the go fast parts. Hopefully they all work together to make Blucifer go really fast.

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[DEMO MAN]

52977

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Here is a few pictures of the dry sump system. This should allow me to spin it to 7000 RPM.

[DEMO MAN]

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52981

This is the new Nth Moto quad carbon clutch installed. It's such a piece of auto art it's really a shame to cover it up. I do want to give thanks to Arron for taking time to discuss options and suggestions on my decision to run his clutch, he is one of those individuals who just leans back and lets his work speak for itself. He's built so many impressive Vipers and doesn't feel the need for the never ending self promotion on social media. 100% respect for that.

[GTS Dean]

Seems like the build is taking forever to get Blucifer ready for that 275 MPH attempt. Everything takes longer than expected and in some cases it's my fault as I tend to rework things 2 and 3 times to make it perfect even if it doesn't affect performance. Sent the heads and intake to Greg Good to rework his original work, CNC is far more accurate and these heads/intake were done by hand many years back. He added beryllium copper exhaust seats and Inconel exhaust valves to hold up to the heat produced by big boost. In addition to that he drilled and tapped the rear water jackets in the heads to get rid of the heat issues generally associated with those rear cylinders. Now it's time to ring the heads/block and reassemble it with copper head gaskets in addition to a little refresh on bearings and rings. Been a long time since I've heard it running, probably will be months more but at least the process is heading in the right direction. Here are some pictures of the heads and intake work.

52513




I was studying the welding and the countersink area. Does this go to your header tank to be sure you don't have any steam pocket issues at the rear port?

[DEMO MAN]

I was studying the welding and the countersink area. Does this go to your header tank to be sure you don't have any steam pocket issues at the rear port?

Greg Good had indicated that I should put a tee in the upper radiator hose and connect from the back of these heads up to that tee. He did tell me it would alleviate that issue of high water temps/steam that Vipers suffer with at the back of the heads.