My MM ESC gets hot

[suicideneil]

Not really. Part throttle driving is most likely to blame, therefore he needs a motor that is slower (lower kv rating) and will allow him to use much more throttle, without being too fast overall (which his current setup is). A lower kv motor on the same voltage and gearing as Linc suggested is ideal, or a mixture of lower kv and lower voltage- depends just how small this track is, but adding a fan to an overworked esc is never the best solution, when the real one is a change of setup. I/we only ever suggest fans for the MM when its being used outside of spec, that is, in a heavy MT or truggy and on 4s lipo- thats when the extra fan and a capacitor come into play.

Checking the wiring and gear mesh over is always a good idea though.

[Dadx2mj]

Okay well Robert says he has a 3500kv motor to try so I guess time will tell. I have run both the 3500 and 5700 on my Mamba Max and when geared to run about the same speed they both ran very close to the same temp as did the ESC. Truth be told I have never had my ESC hot enough to thermal but I am not sure the 3500 will make the ESC run that much cooler than the 5700 will. I honestly think there is some other issue be it a bind or a bad bearing or who knows what but if it is just the track or driving conditions and he still has heat issues with the 3500 and is positive there are no other issues is the fan really a bad idea?