Originally Posted by
moulip
Thank you for your answer. I don't get why this is less efficient to go below 30°? In my view having so much endbell timing means your commutation is way off the motor neutral plane at low RPMs thus generating more heat.
How many times are you coming to a complete stop in a race? Hopefully not often. You're probably still doing 5k+ RPM at a minimum in the slow sections. The neutral plane deforms once the motor starts spinning which is generally why you see 20-30 degrees minimum for timing.