I run a 10.5 with a 19t pinion and kit spur. I started with a 24t pinion and a little boost but have since geared it down. I really thought 19t was too low but It's really fast and after a 5 minute run on carpet at my local club it comes off at about 40 degrees. Despite only being a 10.5 its as fast as the guys running much more powerful motors. I tried it with zero timing and it was still quick.
|