Originally Posted by
kiwiazbro
Thanks for your help Corners. Do you think starting at 72/36 is on the side of caution? I'm just aware of overheating the motor. What happens when it over heats anyway. Fire, electrics cut out?
No problem. What DaveH wrote is right on. You will damage the motor above 160F. Not a fire. But you can render it useless.
That 5.20 FDR should be pretty close. It's not that conservative. What you settle on using will depend on the track, your motor/ESC, battery, and driving. We can't give you the final answer over the internet. You'll have to try it for yourself. If it's too hot, then go smaller on the pinion.