Going to the track today(dragstrip) and was wondering are there any specific ways to launch, like what rpms, dumping the clutch, etc.. This will be the first time for me and was wondering if anyone could give me some pointers or tips.

Did a search and didnt find anything.

All feedback is appreciated. Thanks

 

What Dragstrip is open? What tires are you going to be using?


[Modified by MPH, 4:07 PM 12/10/2001]

 

Capital and stock tires.

 

I tried a bunch of different launches

I launched on Bridgestone RE730s (think thats what they are) at a 5k slip of the clutch

That resulted in a 2.31 60' time

Other time slipping the clutch at 5.5k and 4.5k and 4k resulted in slightly worse times...just give it a try and see

 

Thx sonic.

 

In my opinion,
Try feathering the clutch. Hold it half-way before the clutch is ready to be engaged. Add some gas. I'm usually about 2500-3000Rpm and then let the clutch go at the yellow light right before the green.
Leave you foot planted on the gas and when your about to redline press the clutch half way but at the same time leaving your foot on the gas.
I used this method and I only been to the track 3 times. I managed a 14.3 @96.6 with sloppy reaction time(.898) on stock tires with 22 psi.

 

Feather clutch between 4000 and 5500 rpms and take out air in the front tires to about 25 psi. Will need a good burn first!

 

test

 

I have a vid of some guy in a Firebird tryin to smoke his tires and smokes the clutch instead!! It's too funny. Just don't do that.

 

Thanks for all the feedback.

I ran a best 1/4 time of 14.4@98.6/ reaction.633 60ft 2.3 on stock tires.




[Modified by R-Rated, 3:40 PM 12/8/2001]

 

That's a nice time for just bolt-ons! Now put some cams on that sucka, tune, and get to high 13s.

 

Think I'm gonna get some JUN III's.

 

I used to launch at 3000 rpm and would get a 60ft of about 2.3. for some reason though I would get better times launching at higher rpms 4000-5000 w/ a slower 60ft of about 2.4- 2.5

 

I only have a 1/8 mile track and I managed a 9.604 @75.25 mph witha 2.353 60 ft. time. Does that sound normal? I think I feathered the clutch at about 5K. Is there anything that I can do to improve my times? There is a guy here that ran a 9.5XX in his GSR with a header on it. How much faster should my car be with the same driver? I know the ITR and the GSR is pretty much ever when it comes to torque, so should the times be around the same in the 1/8? I think I had about 20 psi in my tires too.

Thanks! Corey

 

I ran a 14.522@ 95.79, and a 9.449 1/8 in that same run...so I guess you can use some improvement - im not talking down on u or anything, i've only been to the drag strip 4 times...and dammit, bald tires suck


for me, my best times came from stock tire pressure (35/33) on the stock RE010's, holding revs ~3,800 rpms, slipping the clutch, holding it there for a sec while stepping thruthe gas, and then releasing and flooring the gas....not too healthy for the clutch tho but it gave me 2.26-2.301 60's so im not complaining

hopefully this spring i'll have some new tires and hit that 14.3 i should be running

 

yea how do you do a burnout (w/ e-brake) properly without smoking your clutch?
I've tried it and it doesnt work very well (of course i let go of the gas after i realized the wheels arnt spinning)

 

i like to dump it around 5k or 6k, i find that when i dump at a lower rpm the motor bogs and i get a mid 14 sec pass,when i dump it higher i usually get a low 14 sec pass, i got nitto street slicks and clutchmasters stage 1 clutch right now, but had about 30k on the stock clutch before the pressure plate went, i was racing the car since break in at 500 miles.

good luck

and if you're not breaking you're not trying hard enough.........lol