Tko motorsports viper gt3r street car track car build

[ACR-ISH]

we have a few Arrow/Prefix motors laying around so they will be first motors in car.

Only a few huh...? It's bad to let them sit, you know Marty? If you need my Gen5 to babysit one in it's engine bay, lemme know!

[13COBRA]

I want those sideskirts for my car.

[ACR-ISH]

You know ACR-ISH 9.0 liter builds with reliable 750-800HP are not as exotic and far out of reach as you think.

I've heard for overall reliability the 9.0 sacrifices that to "some". Degree. All statements have varying degrees of opinions. 750-800whp...? Tell me more about this thing I think I now need as soon as possible!

With proper tuning it should fly through CA emissions, too? I would imagine it can run all OEM sensors in closed loop and be okay? Obviously it's not "technically CA legal" but my smog guy just wants it to plug in and pass.

Ya dig?

[ViperNC]

You know ACR-ISH 9.0 liter builds with reliable 750-800HP are not as exotic and far out of reach as you think.

Very strong and reliable setup. I love mine.

[Arizona Vipers]

I've heard for overall reliability the 9.0 sacrifices that to "some". Degree. All statements have varying degrees of opinions. 750-800whp...? Tell me more about this thing I think I now need as soon as possible!

With proper tuning it should fly through CA emissions, too? I would imagine it can run all OEM sensors in closed loop and be okay? Obviously it's not "technically CA legal" but my smog guy just wants it to plug in and pass.

Ya dig?

I ran my prefix 9.0 730whp motor for over a year hard on the track, no issues. Just got it back with over 800whp, dying to get it back out on the track, not until November 16th. Did you hear of some blown up 9.0's?

[ACR-ISH]

Reliability is good 9.0L N/A is pretty basic. The trick is oiling and tune no matter stock motor, 9.0L N/A or some big twin turbo setup. If you road race the factory oil pan is the weak point for sure. Adding the extra qt of oil trick helps but its not the best fix. We have 2 fixes for the oil pan problem dry sump system or our racing oil pan coming out this next year. Reliable tune is also very important. Road race you dont need max HP you need endurance and reliability. Cali emissions usually no problem. Visual easy pass. We are now working with a motor builder we have faith in. When your ready pm me.

Let's see how I navigate Sonoma with 640HP before I go trying to make an additional 200WHP!

[Scott_in_fl]

^^^ Yeah, I can't imagine reliability being an issue for the 9L. We're talking about a large 10 cylinder engine that any of the good engine builders will tell you has no issue handling quite a bit more power than what a 9L puts out. And these are the guys beating on them at 1/2 mile and 1 mile events. Only issue has been oiling. Accusump should ease all concern.

[Pappy]

Speaking of street legal, will you have any trouble with the state of CA with the Earnhardt bar obstructing forward vision?

Pappy

[Scott_in_fl]

^^^ Definitely paint it black to conceal its presence at the very least.

[Scot@Prefix]

We had a brand new 9.0L 850HP melt the top end at the vegas viper meeting. We were just shaking down the car with our shocks,suspension and aero package on it. We lapped the field on just about every session. Motor made great power and very usable. Last session of the day driver said car felt sluggish loss of power shut down and rolled in. All temps and pressure good no warnings. Pulled motor rebuilt and and ECU corrected by motor builder. Been running great ever since.

Thats interesting since you told us the temps were high with water in the 270 plus range, and the driver continued to run the car.
There was over 11,000 changes in the ECU calibration, when compared to our calibration that is included with the 9L.
All pistons showed sign of detonation. Fuel pressure may have been an issue as well since it was not monitored.

[NT-ACR]

Lol. This is getting interesting now.

[Fatboy 18]

Few pics one of our builds. Viper GT3R. The pics are of day 10 i think. I will see if i can find some pics of actual day one if people want to see all the real progression from start t finish.Attachment 40315

I know this is essentially race car build with Chassis stiffening and Geometry (and much more), But I have to ask......the pic showing the door, the gaps are Horrid? Is that the final fit or is everything still to be adjusted?

Sorry to pour rain on the parade

[Fatboy 18]

Sounds Awesome, and thanks for the reply.
I always wished that the Viper team in Le man's would (when facing a non win) bring one of the cars into the garage, unrestrict it and then go back out on track for a couple of laps and show the crowd what the cars really could do!
Yeah they would have got a black flag but it would have been a great way to go out.

[serpent]

Lol. This is getting interesting now.

Lol, you are always chiming in when theres action!

[Camfab]

Unrestricted or limited rules.... like racing use to be and should be today.

Couldn’t agree more. I can see why OEM’s hate to go racing, 98% of the problems stem from sanctioning bodies catering to the highest bidder.

[Arizona Vipers]

Attachment 40452 Our TKO Holinger RD6 transmission kit for the Dodge viper getting ready to go into our GT3R viper build for fit and header exhaust build. TKO holinger trans conversion absolutely the best transmission to handle the power of any viper. The base for our kit is the Holinger RD6 trans; Handles 1000HP and 800ftlbs with zero problems, paddle shift or bump shift. Extremely low maintenance, dozens of gear ratios, compact design. We absolutely love these transmissions and The guys at holinger were great to work with.

Does the paddle shifted setup do no-lift shifts? Without motec? What controls it?

[EX1]

Incredible fab work. I'm just over waiting for those exhaust systems to come out.

[Bill Pemberton]

Unreal machines , so incredibly cool all the stuff you have done since we first chatted about your project. The end result is 100 times cooler than I contemplated, you guys are beyond talented! Thanks for the post , I know everyone is pleased and stunned.

[TKO MOTORSPORTS TEAM]

Unreal machines , so incredibly cool all the stuff you have done since we first chatted about your project. The end result is 100 times cooler than I contemplated, you guys are beyond talented! Thanks for the post , I know everyone is pleased and stunned.

Morning Bill. You guys at Woodhouse auto family have always been top notch and treated us very well. Your compliments are very much appreciated thank you.

[TKO MOTORSPORTS TEAM]

Attachment 40691Attachment 40691

[TKO MOTORSPORTS TEAM]

Attachment 40692

[13COBRA]

Drool.

[kriskyk]

No Motec. We work with EFI technologies. EFI technologies is much easier to work with then Motec. EFI also allows us to custom build into the system whatever data and systems we need. Yes no lift shifts , blip down all completely adjustable and full data on all of it.

Is it more or less than Motec?

Was quoted $13k-$16k for Motec installed by other shops

[TKO MOTORSPORTS TEAM]

Kirskyk EFI tech is about the same price as Motec. But EFI is alot easier to deal with and work with. EFI is also easier to customize to your application and expand for data integration, paddle or bump shift, braking, driver aids etc.

[Exhlr8n]

Coming along nicely...Can't wait to see it carving up the tracks!