Originally Posted By Diplomat360
Originally Posted By B3422W5
I swapped from a 107 lsa cam to a 112 a few years ago in an 11.5 compression 416 stroker.
It killed the 60 foot...

Hmm...my car today has terrible 60' time, best being 1.87s...but that is because it is not setup for 1/4 mile racing at all. Instead the suspension is pretty stiff, HD leaf springs, sway bars, etc all in an attempt to make it stick to the road, lol, as much as an amateur build 3600 lbs vehicle can.

I'm curious though, so what were the before & after 60' times like?

In your case you were focused on max performance, and knowing the difference a move from 107 to 112 LSA had is pretty good stuff! Was the LSA the only change?


Dwayne specced the comp flat tappet cam. Car ran best ever 10.38 with it. 1.41 ish 60 foot
Straightline guy specced the 112. Car ran 10.55 best with it.
60 foot was off 6 or 7 as i recall. 107 cam 260/266, 112 was 259/268. Car didnt go anywhere till it was in high gear
Admittedly, the car lost almost no mph, just wouldnt ET near as good. I suspect with more squeeze and convertor the 112 might have shined, but i stated i was leaving that stuff alone, and was told it would still run better. It flat didnt.

69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam
Best so far, 10.40 @127 1/4
1.41 best 60 foot
6.60 at 103.90 1/8