[MetalMan]

Originally Posted by SilentMonster

I've got an update. First off let me just say that the 1512 motors are more that enough. There is no need to even consider the 1515 series. I'm waiting on an order of pinions from Mike, so I ran it with the 24/44 gearing. Obviously it is stupid fast but here is the kicker: The hottest the motor ever got was 155 degrees. Wow, that is impressive to say the least. The MM was not too happy though. After about 10 minutes it was shutting off. I assume it was thermaling. I had the Nomadio Sensor on the motor but not on the ESC but it was hot. I didn't expect the ESC to get hot. When I ran the XLT-4 motor it was just warm and the motor was cooking. I can't figure that one out. It would shut down and then after about 10 seconds it would reboot and run. I'm sure the MM will like the 16, 18 or 20T pinion much better.

If with the XLT-4 motor the motor was getting hot and the MM wasn't heating up much, then the motor was undergeared. Are you using a fan on the MM? If not, I would say that the MM is running at a pretty acceptable temperature if it lasted 10mins. before thermalling.