Bolt-on Gen2 GTS 1/4mile

[Rxmfn7]

Hey guys. Just thought Id post and ask some questions. I have an '00 GTS ACR, and just completed a round of bolt-ons. ARH headers/high-flow cats, corsa cat-back, along with a mail-order SCT tune from A&C performance. Also running Gen5 wheels just for info. Im more of a road course guy, but decided to take it out to my local drag strip (Keystone raceway in PA) just to have some fun the other night. Wasn't expecting to do anything all that great, but I guess I am a little concerned about my trap speed. I got 3 runs in, my best was 12.8@114mph. Other 2 were 13.0 and 13.1 I think, traps were all within a mph or so. my 60' was 2.0 on the 12.8 run. As I said, the ET doesn't really concern me as I'm on street tires and not really launching all that hard, but I feel like the 114mph trap is really low. Just judging from what others have done I was expecting high teens at least, as I thought that's what these cars could do stock. My only consolation is that everything there seemed to be slow that day. My friend brought his STi that made 360AWHP on a mustang dyno, and he was only trapping 105. There was a hellcat challenger and IIRC was only trapping like 118. So , just wanted to ask what you guys' experience have been? I beat all 3 cars I raced (newish mustang GT, wrx with mods, and LS1 T/A), but still.. I feel like now I am going to do a compression and leakdown test just to make sure the engine is healthy haha.

[braunstein82]

My 98 did 12.2 118 smooth tubes borla catless

[Mad Max]

My 98 did 12.2 at 118 after hitting the limiter in 3rd. Smooth tubes, SCT mail order tune and after market exhaust.

[Rxmfn7]

Hmm.. now that you mention the gear thing, I was shifitng into 4th right before the traps. I have stock gearing, and 1" taller tires because of the Gen5 wheels. So I cant see how it was only showing 114mph. Top of 3rd should put me at ~120..

[MacGyvers Mullet]

Don't sweat it too much. #1- You must get that 60' down a bit and you will see the improvements that you are looking for. Try to cut a 1.8 and if you can get that, shoot for a 1.6. It's a right foot game with the gen II, but you will get there!

[Vprbite]

Of you are running taller diameter tires and have stock gearing you have takem that gearing down a bit. Put 3.55s in and you would probably be at about a 3.33 overall ratio. That's a good one to be at. I had 3.55s in my gen II and ran Gen III wheels. Loved em.

Also, drag racing is really all about practice, practice, practice. I suspect your times will get better with more runs.

[Rxmfn7]

^ Understood. If I went to 3:55s, with a 27.1" tall tire (as compared to the stock Gen2 25.9" tall tire) it would put me at an effective 3:42. That's probably the plan going forward. And I know ET will come with practice and traction, but at least in my limited experience I've found that trap speeds don't differ all that much no matter how good/bad a launch, at least with moderately powered street cars. I was trapping 112-113mph in my old FD RX-7 with only about 300whp. So when I see similar traps in a car that should be making 440whp give or take, it makes me think something is up.

[BFoster]

Not sure where you are located, but if your weather has been anything like ours in Iowa lately, the air temps/humidity will not do your motor any favors either. Heat+humidity=loss of power.

[06SRTCoupe]

If everyone else was running slow then there wasn't anything wrong with your car. Maybe their equipment wasn't calibrated correctly. Download a speedo app, go out there, and run again. The one I downloaded was pretty accurate (compared to my speedo) and it logged the top speed reached. Compare that to what the slip says.

[99RT10]

What altitude was the track? Sea level? 6000ft?

[Vprbite]

^ Understood. If I went to 3:55s, with a 27.1" tall tire (as compared to the stock Gen2 25.9" tall tire) it would put me at an effective 3:42. That's probably the plan going forward. And I know ET will come with practice and traction, but at least in my limited experience I've found that trap speeds don't differ all that much no matter how good/bad a launch, at least with moderately powered street cars. I was trapping 112-113mph in my old FD RX-7 with only about 300whp. So when I see similar traps in a car that should be making 440whp give or take, it makes me think something is up.

I had 3.55s in my Gen II and LOVED em. Will probably do them on my current car. But with most of your driving on the street you will really love the 3.55 gears. And they won't hurt track performance in my opinion, as long as you don't go past 3.55s. I happen to be partial to the 10 spokes on Gen IIs (thats what I had), though they are the heaviest of the gen III+ Viper wheel. But they are easy to find and will make tire selection so much easier, plus you can jump on the Pirelli deal.

These guys make good points about the weather not helping you and everyone else running slow too. And getting the power to the ground is the real art in drag racing these cars IMO. Experience will help a ton.

Best of Luck!

[Camfab]

As a bad comparison, I also have a 2000 ACR. At VOI 9, which was in '06, my car was relatively stock. Only mods were a Corsa Cat back and 3:55 gears. The best it ran in Vegas with 92 degree air temps, 2028' Elv. and 9% humidity, DA of 4558' was 12.50 @116.54 with a 1.99 60'. Which Gen V wheel package are you running? Personally I think that set up isn't helping you, the factory BBS wheels are the lightest wheels available for the Gen II.

[txA&M08]

My 02 has smooth tubes, roller rockers, Bellangers (catless), Borla, and Mopar PCM. Dyno'd 469rwhp and my best run on 355 Pirelli P-Zeros was 11.92 @ 121.

60 ft was a 1.9 and DA was around 1500 ft.

Based on that Hellcat reference, it sounds like the air was really bad and you have nothing to worry about.

[Camfab]

Looks like your track is at 1200' and you likely had high humidity and temps. Did you go July 22?

[Rxmfn7]

^ Yea, went the 22nd. Dont know the exact temps but it was in the 90s and very humid.

[MH60M]

These guys make good points about the weather not helping you and everyone else running slow too. And getting the power to the ground is the real art in drag racing these cars IMO. Experience will help a ton.

^^^^This. An acquaintance of mine bought a high 9sec Roe car from a guy at the local strip.......He couldn't get it out of the 12s. Track/Viper experience seems to be the key to good times.

[Camfab]

^^^^This. An acquaintance of mine bought a high 9sec Roe car from a guy at the local strip.......He couldn't get it out of the 12s. Track/Viper experience seems to be the key to good times.

Sounds like the guy he bought it from was running it on the bottle. A little smoke and mirrors on the sellers part I'm guessing.

[MH60M]

Sounds like the guy he bought it from was running it on the bottle. A little smoke and mirrors on the sellers part I'm guessing.

Nope...all driver. They switched back and fourth one night because the new owner said something MUST be wrong. They were both local track guys. The new owner was a less experienced driver & first viper. They were laughing about it all night......previous owner did 9s....new owner still ran 12s.

[Camfab]

Nope...all driver. They switched back and fourth one night because the new owner said something MUST be wrong. They were both local track guys. The new owner was a less experienced driver & first viper. They were laughing about it all night......previous owner did 9s....new owner still ran 12s.

Wow that's crazy. Gen II is one of the easiest to launch and shift. Maybe he or she was really intimidated by the car. First time driving a manual, that would explain it.

[sparkrn]

2002 ACR stock = 12.29. 1.72 60 foot, 117mph. I felt I left a lot at the line still

[Vipernoob]

DA is a huge factor in 1/4 times and trap speed. Go back on a cooler day and your times and speed will improve.

[Atari_Prime]

Sounds like the guy he bought it from was running it on the bottle. A little smoke and mirrors on the sellers part I'm guessing.

Unless you are running racing slicks and nitrous, the odds of having a 9s car are very slim. And considering you wouldn't be running slicks on the street, I don't see the point of running them anyway.

[ZZ SRT]

no way a 9 second car is a 12 second car from driver alone.

Even with a 60' well above 2 seconds, you still would run low to mid 11's on the big end alone unless you are missing gears and letting out early.

[Atari_Prime]

no way a 9 second car is a 12 second car from driver alone.

Even with a 60' well above 2 seconds, you still would run low to mid 11's on the big end alone unless you are missing gears and letting out early.

Oh I completely agree, I was assuming they had already deleted cats, added a supercharger or turbo, smooth tubes, headers, different gears, better throttle bodies, the whole gambit. No one is getting into the 9s unless they are running north of 1000hp and weigh under 2500 lbs.

[QuikHD]

I ran mine last fall. I had some pretty good runs even though it was my first trip to the track with the car.

1997 GTS with 1.7 rockers, 3.45 gear, SVS headers, Corsa cat back, Cat delete, smooth tubes, remote dyno tuned by Todd @ A&C it made 475rwhp on a dyno jet

My best pass was a 1.8 60' and ran a 11.61 @ 122.11mph

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