Originally Posted by
tfrahm
The experts can probably give you a better answer, but for me, you may have answered your own question with this bit of information:
(Temp after 5mins is about 175-180*F)...
Sounds like you may have cooked the stator windings and/or caused the rotor to lose magnetic strength - all of which will kill a motor...? Motor internals don't just start un-soldering themselves for no reason... Excessive heat can even kill the motor bearings by cooking out all the lube, so you may also want to check them?
What I read from the threads are usually 170-180*F is the recommended temp? I know that overheating the motor would kill it but I thought that temp range of 170-180*F is the recommended temp

I forgot to mention that before the first main I run the car for 2 laps just to heat up the tires and before reaching the grid my motor cogs and stopped. When I pickup the car and went to my pit table I tempted the motor and its about 170ish*F for just 2 laps!

I did relube the bearing before that day and when it first happened I relube it again to try the motor for the second time.
Thank you for your comments and suggestion though, appreciate it!
abailey21: Sir, I would just like to ask if this would be covered for warranty? Please let me know, thank you very much!