Finally finished my buggy conversion!!!

[Sammus]

The motor amp ratings are near useless when your running them in a car, don't listen to them its an air thing.

Just because a motor is rated to 100A or something doesnt mean it cant draw more. If you bind the shaft and floor it will effectively short the battery through the esc and destroy it.

Sorry I don't know the tech behind it, it has something to do with the switching of the fets in the esc. I'm not asking you to believe me, I just thought you'd like to know that it is very possibly the reason you killed your esc.