[QUOTE=oeoeo327;12819383]I resolved my braking problem by putting a 13.0mm rotor in my D3.5 motor (I'm running a 10.5 in an open touring class). I guess braking strength is a function of both rotor strength and the air gap between the rotor and stator...
Now I'd love to know why my V3 has a nasty habit of shutting itself off...
Fresh battery in the car, no collision necessary - I can run the car for a few laps, and if I stop for any reason (e.g., after a few warmup laps) there are times the ESC powers itself off. Anyone else observe this behavior?[/QUOTE
If your holding the brake while stopped for more than 5 secs the esc will shut down it is a feature of the data logger to save the data.
As for your brakes issue when shimming make sure your rotor is as close to the hall sensor board as possible.