Yeah sounds undergeared to me too.

ok ... and whats about the symptoms of overgeared ?

They are Fairly close. Ussually the esc will be cooler then motor on undergeared. Esc gets hot on over geared. Always exceptions to rules though.

I run 19t pinion 87t spur dont think it is under or overgeared on 2s 7.4v ... my e-firestorm 2wd stadium truck complete with battery/body into it is about 5lbs... esc are like about 120 to 130f and motor 180 to 195f ... battery are cooler ...

why dont you start from the beginning of your thread and reread

I know but I always got the same problems ...

Have you tried a 25t pinion ? according to your thread the highest you went was 19, I run 30/74 on a similar setup and it only gets hot after long runs because its overgeared

I tried 23t pinion it is the biggest I have in my hands and still same...

well if you use a 23T pinion and your 84t spur and the motor is still burning hot you probably cooked it and demag'ed it. http://www.rc-monster.com/forum/showthread.php?t=14381

hmm I opened it and still magnet so very fine on the inside of the motor can ...

maybe this can help you out guys --->

http://img37.picoodle.com/data/img37...1m_4c3a73b.jpg

http://img37.picoodle.com/data/img37...2m_d685b85.jpg

:neutral: