See sig. for vehicle details.

I took the car to the tarck last Wednesday, 50+ degrees. I ended up running the following times

Pretty much a 12.39-12.45 1/4 time. The real kicker is the 1/8 MPH and the 1/4 MPH. My 1/8 MPH was 88-89Mph. My 1/4 MPH was 110 all day long even when I ran 12.6-12.8. Shouldn't a 12.3-12.4 be faster than a 110 trap speed. I am running a 3:23 rear gear and Eagle F1 tires (275/40/17). My 60' times were between 1.85-1.95 (not to bad for street tires).

So, what can cause the car to pick up only about 21MPH the second half of the track? I was wondering if the person who did the programing of the car didn't put the converter into lockup at any point? It is a small 2800 Stall. The question is what happens if I put a 3800 Stall and a set of Nitto Drags on the rear. Does that get me a 11.9?

Thanks for your help!

Bill

 

That's about right for an auto. You won't turn the MPH that manuals will if that's what you're expecting. Friend of mine went 12.45 @ 108 I think last year in his cammed A4. You will lose a little top end with the stall, but it's not nearly as much as you gain out of the hole. I say be happy with those numbers.

BTW - Get some DR's and you might take .1-.2 off your time.

 

You aint kidding. I have a friend with a few bolt ons on his 01 Formula auto and he ran a 12.6 with stock cam/heads , na, on pump gas.

 

"Full Alpine Sound and Video System"

It's all about the weight ... you're not just slow on the back, you're slow all the way down the track. A H/C car should be running 92+ mph in the front.

Also check your shift points - with that cam you should be shifting at 6300-6400 - and eliminate TQ management.

 

I think I got the same problem as Bill.

12.4@113, 1.8 60', 88mph 1/8