1515 2200kv heat issues in buggy

[What's_nitro?]

Weird... Well, if you've checked all the connections and they look sound, then I think you got a bad ESC and/or motor...(again?) Are the settings on the new ESC the same as before? High timing/start power would cause this with in-runner motors. Maybe try re-updating the firmware incase there was a glitch somehow.

Sorry to sound like a broken record. If the car coasts smoothly while off power then I don't think it's a drivetrain issue, unless, like you suggested, there is some strange on-power flexing going on.

Could you post a couple pics of the setup? It might help us help you.

[KniteWulfe]

I actually changed all of my connectors. I switched the traxxas battery jack to ec3, and went through and rebuilt the entire drivetrain for the 5th time. Settings are the same on the esc. Low start power, 0 timing, etc. I actually tried some punch but it made the cogging worse. I'll post an eagletree graph of what happens in a minute.