xray buggy, 5s, and i switched to 6.5 connectors over the 4mm i was running, and the motor is damn near new, only a couple weeks old... ill go over my connectors agian but i wasnt having any problems at my house running before we came down here to texas for this race.
Like edumakated said. 170 isnt a problem. Your not going to do any damage at those temps so dont get too wound up in it. I pull my buggy off the track at 170 after a long hard rmain and dont even think about it.
If the track surface is significantly different than the one at home you could see some significant temp variation. A ton of traction can pull more amps or a very loose slippery track can tend to make the motor run a bit hotter due to the wheel spin letting the motor rev without a heavly load.
I can't decide if its more fun
to make it...
or break it...