Originally Posted by
B.A. Racer
i run a 22/81 or 23/81..that should do it.but if its a small track maybe 23/78...but those are good starting points
I'm at 22/81 on my tight indoor track but I've considered going up a tooth, maybe 2 to take away a little low end punch/snap...actually would drop my spur to the 78 before I went up in pinion to keep the motor forward..22/23-78