Drove a Viper to 12.6@115

[JonB]

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by FutureGTSowner:
My friends dad has a blue/white striped 96 GTS, I met him and drove his car to a 12.6@115...... Any tips for me on how to get a better launch (got a 2.2 60' time)? <HR></BLOCKQUOTE>

The Tires Matter. Assuming you are on stock, treaded tires -

Dont use the water box.
Lower your rear tire pressure to ~19psi
Raise your fronts to 44
Avoid wheelspin as best you can....launch lower RPMs

Since he drives consistent 12.2s.......ask the very generous (crazy?) owner !

 

[SteveBCloud9]

O.k. I'm far from being a pro but I learned a lot since I took my snake to the track for the first time last Friday. My best was a 12.08 @ 113 after 8 runs. Here's some things that I've learned aside from John b's post:

1) Always shift into 4th at the end of the track. I have a slow mph on my run due to hitting the rev limiter trying to make it.
2) Look at the car's dyno sheet and see where the horsepower drops off on it. Mine drops off (peaks) at 5300. This should be your shift point. I was shifting at 6000,6100.
3) Put in some racing gas or octane booster if you have made any mods to the car, it can't hurt.
4) After 4 runs, let the clutch cool down for 30 minutes or so.
5) Reset the computer by disconnecting the remote bbattery cable. This will re-map your fuel delivery system and may give you a tenth.
6) 60' time is critical. I managed a 1.9 my very first time out. I would set the rpm's at 1500-1700 and let the clutch out slowly until I got traction. Then pre-load every gear before you change gears. You won't have to lift your foot from the gas pedal for second but maybe on 3rd & 4th just a little. I missed 3rd a few times but still pulled a 12.3 at the worst.

Have fun.