merc, are you sure those are 4.30's? im taching out 3rd with my 4.10s and my trap speed isnt that high. taching out 3rd with 4.30s cant be very fast.MercCougarXR7 said:Top end for what? 1/4 mile track? Or outrunning the cops ? They go 140mph by the way.
I haven't been to a track yet, but on a rough 1/4 mile calculation (from farm edge to farm edge on back roads), I only top out 3rd gear with my 4.30's.
3.73's - nothing to be afraid of. Excellent choice, but wasn't enough for me. Still a bit boggey, and the 4.10's I thought I was getting turned out to be 4.30's - somebody didn't know how to count I guess.... But, they weren't going to waste though!
I think you would have a limiter at ~128mph. simply mutiply by your current ratio, then divide by the new ratio.50TBRD said:I mean total top speed. And I heard stock topped out at 145 but was electronically limited somewhere before that. I read an old article aboput someone putting a 3.55 in a tbird and cutting the top from 105-110 to 95. I know Ive been about 112-115 though.