slomaro- he definetly knows about cars since he works as a mechanic, as far as being able to drive good, i don't know really. But thats what im afraid of-- i would like to use my stall and a4 off the line, but i don't want to send too much shock through a basically stock driveline and come away with something seriously damaged. I believe everyone is right about my advantage from a stop- which i'd like to race from. Maybe i'll get over myself and go easy from a stop. BTW, both of us are on street tires, mine being BFGoodrich G-Force 275/40/17. with his being similar size. I'm at about 40psi in the rears, what do u think i should have it at so i dont have alot of spin? 25-30psi?


Mislman- thanks for that info i just might try that, ur right i hope he'll miss a gear and i think that would be it for him. Thanks and we'll be safe.

 

Hollow victory!

 

yea thanks

 

Just remember, it aint' the end of the world. It's a freakin car race. In normal society, nobody cares.

 

yea i know, Even if i do lose i'll still be faster than 75% of the cars watching which are mostly tuners. lol

 

Guys have gone 10's on stock rears, I not saying yours is bulletproof, but I think your okay for this one. what gears do you run? stall?

What kind of g force tires? Kdw, KDW II, KD?
40psi is way too much, try 22 or 24.

I think your worrying too much about the rear, if anything he should be worried and only should be if hes running a very sitcky tire. Otherwise he ll just spin, spinning the tires will never hurt the rear.

Read up about auto's and 10 bolts. They last a while for them. Mainly because a a4 preloads the rear and the ring and pinion. Which is much better than dumping or slipping the clutch on a m6 car.

Do a serach, Im not saying it to be an ***. You will find endless threads about it, hopefully when done you will have a better understanding of the mechanics of it. Also you will know how and what to do so you dont break it. (launching the car)

 

Right now it has 3.73 gears, with a Vigilante 2800 TC and the tires are G'Force KDWS. yea i need to read up a bit on this subject, I'll see what i can find. Thanks

 

Get a rearend "brace" for your stock rearend. Basically a reaend cover with two bolts and locknuts in the cover. With the rearend brace/cover bolted inplace, you seat the bolts down against the rearend caps and lock them in place with the lock nuts. This helps prevent the caps "walking" a little when the rearend is loaded at launch and the launch makes the gears try and walk out of the housing. When the gears move the teeth don't mesh cokmpletely and you can chip a gear tooth and/or have major rearend carnage.

I had over 200 drag strip launches on drag radials with my T/A running high low 12's to high 11's with no damage to the rearend (3.73 gears).


Later ... Larry S.

 

hopefully im gonna run with him this weekend, im thinkin about havin someone in the passenger with a camera so i can post it up maybe.

 

Leave the passenger watching from outside of the car, are you crazy adding extra weight??!!

 

dam, i cant believe i didnt think about doing that. LOL. yea im crazy for thinking bout adding weight.

 

your fine.
air pressure around 25psi

 

The very best way to set the rear air pressure is to get to a secluded spot and lay a small patch. Check to see if it's even all the way across. If it is then let the pressure down an couple of psi and patch again. Keep doing this untill the patch starts looking thinner/lighter black in the middle then go up 2 psi and you now know for sure what pressure you should run with your tires for best traction during a launch.

 

I have never seen a cammed LS1 here in ga run anywhere near 10 as a matter of fact high 11's, cars that are modified comes down to driving stroker LT-1 VS CAMMED LS-1 I will take LT-1 all day.

 

There's a local LS nutswinger that has thus far only mustered a 12.9 (I think) with a cam. He then proceeds to make fun of LT1s.