are 4.30's to much for an a4? this will be a driver and 1/8 mile car with a 28 inch slick and 27 inch street tire. i'v alredy had the 4.30's with a m5 so i know it a lot of gear for the street,but this ls1 is going to be WAY faster than my old 302.what mph in 3rd with 4.30's and 28 inch slick at 6600?

 

130 on the dot... why don't you go with a 3.89 gear and run a 26inch tire.. that would be 133mph at 6600rpm...

 

3.90s or 4.10s

 

If you want that much gear, why the small stall? I run 4400 stall with no probs!

 

you have to run to much pis in a 26 inch slick so the rim wont hit the ground when you lanch hard

 

the gears were in the car befor the swap.i just wanted to know if i should chang them

 

I ran 4.10's in my car, pretty much stock, and they worked great for me.

If you've got the tire and the 6600 RPM rev limiter to pull it off, then I don't see why you can't do 4.30's. Especially if you're doing 1/8 mile running?? (what speeds were you typically trapping in the 1/8 anyway?? )

Here - http://www.f-body.org/gears - you need that link!!

Looks like you're good to ~128 mph @ 6600 RPM in 3rd gear w/28" tall tires, but factor in some converter slippage, and I think I've heard that 28" slicks aren't truly 28" tall?? But still you should be good to well over ~120 mph anyways?

 

I think that would be a perfect gear for the 1/8th mile and the A4 tranny. The 28" slick will kill alot of the gear.

 

i think it will run 6.6-6.4 @ about 110.so ill probley be good till i spray it