I sure some one will post up a gear ratio for your class. But having run the weekend at the track, you should be able to come up with a reasonable guess at the right ratio. Were you over revving the engine at the fastest part of the track or turning too few rpm’s in the corners? What was the clutch stall speed set to?
What’s going to be more important is your chassis setup. Nothing is going to kill your lap times more than a poor handling. My advice is to take to gear ratio that someone will graciously provide, and maybe add two teeth on the axle. Then work on the chassis until you can run with everyone else and knock off the extra teeth.
LAD Specialties customer / tony kart / rotax / kt100