momba still not responding well

[lincpimp]

Ok, what gearing are you trying to run with both 2s and 3s?

Also can you get us a pic of the setup? How much clearance between the fins on the MM and the body? Ay cooling holes cut in the body? Not much room under the shell on a .5, so you may want to add a fan or try to position the MM so that some air can pass over the heatsink.

I am having a similar issue with my mini hyper ste. With the esc on top of the center diff it is about 1/2" from the body, and it heats up quick on 2s with a neu 1509 650kv. If I ran 3s I am sure it would thermal due to the increased voltage on the internal bec. I plan to move the esc to on top of the servo, and maybe add a fan (trying not to do this). I also plan to cut a hole in the body to allow some air to get to the esc. The neu has similar temps to you motor, and I am geared for 37mph IIRC.