1515 2200kv heat issues in buggy

[KniteWulfe]

Last weekend I took the readings with my friend's temp gun and it was at 175 on the end-bell and 150-155 on the sides. Ambient temp was 75 and windy. Better, but the lower ambient temp I'm sure had something to do with it. The weekend before, track temps were like 120 degrees.

I was under the same assumption, that the vehicle was the issue, but I cannot find any binding at all, it is very smooth. When I let off the throttle it coasts as easily as can be expected from a notchy 4-pole motor. I am going through the drive-train and rebuilding though just as a precaution. My motor mount is installed properly, and I put a piece of foam rubber on the black plastic thing to cradle the motor better.

As I was typing this I was inspecting the mount and the black plastic brace thing. I pulled the motor and noticed quite a bit of wear on the underside of the end of the can, it looks like the brace was doing nothing for the motor and it was slapping the chassis. I wonder if you are on to something and the pinion is binding under flex causing added heat. I'll test the motor in another vehicle this weekend and see how it temps with the same gearing. It would have to be something that only happens under throttle or under flex causing binding if the car is the issue.