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what does tire diameter got to do with it.. no matter if my tire diameter was 10" or 30" my engine rpms, reduced through tranny and final ratio will give the same axle rpms at a certain tach rpms, no matter what the tire size is.. only difference is the speed of the buggy then...but my tires are 22"reading your last post.. why is it based on how fast your going, as opposed to the engine rpm reduced to axle rpm? it should matter what size tire you got and how fast your going.. as long as you base it off of your average engine rpms... if my average engine rpms are 6000.... then i should work it from there.. tire size should'nt matter huh?
shouldnt matter what speed your going..