Originally Posted by smojoe
what sort of gearing should I start with using a 13.5BL motor and 1.78" tires? 90-ish foot back straight.
i have seen some posts in other threads on Rctech. there are mentions of having to and being able to gear them TALL to the point where the 88T/64P gear is not a small enough spur for the size pinion the 13.5 needs to hit the sweet spot. rear pod space is a issue. some have found places to get New Old Stock 64 pitch spurs that Robinson racing made. i think in the 68 to 70 something tooth range