after about 10 mins. of drifting my motor would just not respond and all i hear is the little humming noise coming from the esc. then after like a min. or two it would run again for about 5 min. and it wouldn't respond again. i checked everything and i couldn't find anything, could it be my driving/drifting? actually i have non solder motor leads and i put the + motor lead on the neg. side of the motor and neg. lead on the + side of the motor. could that make it overheat? or it doesn't matter. and i remember when i was attempting to solder the esc wire straight to the motor, some of the soldering wire got into the motor, so... im not to sure if that would affect it to. so what do you guys think?????? oh, and i use pvc tires.