I tried to do some high speed tests today but the spur gear kept coming loose and I wasn't sure why. I later found out the setscrew was stripped and I replaced it. By that time I didn't have time for high speed stuff, but I did some quick runs in front of my house and I could only get about 1/4 throttle in the limited space I had:



Heres the data from that run (8s geared 64 pinion, 36 spur):