Originally Posted by vr6cj

Yeah, 17.5 is good to start back in if you havent raced in awhile. Like me. 13.5 is more for advanced drivers per say. IE the old "Expert/Super Stock" classes vs the 17.5 IE stock or novice more like it. :P haha. Anyways last time I raced 17.5 I got booted out to 13.5 cause I was lapping them.

Yeah, the gearing there I'm at is a good starting point. It works for the 13.5 at are track to cause we only have one long straight. Well see when race day comes. I'll go practice and adjust from there based on motor temps and how the car feels.

But once you get that layshaft in get youself a Kimbrough 108 and start in the 40ish range. Adjust from there for your track, esc and weather. Even the motors are a little different too. I have Novak, LRp and sp 13.5's and they all run a little "different" from ea other. BTW if your goin smaller then I think a 43 pinion you might have to up you spur. Dont think it'll mate up together.

Just my .02 here.