Trans brake 60' times

[ringman]

I'm getting ready to race tomorrow for the first time with new transmission. Last time I ran a 12.0@113 with a 1.68 60'. Since then I have put a fmic in, boxed control arms, bigger turbo (ta49), and a Cottons perf trans w/trans brake and 3500 Art Carr trans. Suspension has air bags, pinion snubber, and control arms. What is an achievable goal for 1/4 mile times, and 60' times. I am willing to launch as high of boost as I can get traction on. I run 26 x 10.5 slicks. Mainly I'm curious on 60' times

 

[Louie L.]

The short slick is going to limit your gains. With more boost you may get some improvement. At your MPH you should start Thinking about a 28 in tall slick.

 

[Paul Clark]

No help here.
But I am curious as to what turbo you had and what boost when you ran a 12:00.
Thanks
Paul

 

[ringman]

Sorry, I actually was running the 49 turbo when I ran 12.0, but it was smoking badly at the time. I've had it rebuilt since then.

 

[brian]

Ringman,
Seems like the converter stall speed may be a little high for your 49. You may give up a bunch of MPH with that stall. Also, with the brake you may take your motor out of its torque range a little to quickly as the conv flash rpm will be up there a bit.
I do not wish to be to negative. Every car is different. My car with a 45a, was using a 3500 stall to achieve the 60fts in my sig.
Thanks, and good luck with you new combo. Should be good for well into the 11`s if the stall is close.
Brian