Input needed. So we started a TT-02,01 class a few months ago. Our goal was for someone to come in, buy a kit & build with minimal expense & needed parts. We stocked all sorts of TT-02's & 01e. We allowed bearings/shocks/front cv's. We use Gravity USGT tires as spec. Everything was going smooth until a couple people burned up pinions and also noted that pinions & ratios are different kit to kit. Seems rally vs gt car.

So now the question. Do we allow open gearing & let it sort it self out? I picked up1 sec/lap with my 01 going from the kit 19t to a 22t.

I did make a huge graph showing fdr on both 02 & 01 with Tamiya spur & different pinion sizes. Seems both 02 & 01 are 2.6fd

Edit, if we allow open gearing, what is the best method to do so? Everyone already has 48p & 64p in their tool boxes but these are mod .6. Do we stock the Tamiya spur gears & pinions? Is there a way to switch to 64p? Or 48p?