Is the 4s rule more for power or for effeciency? I just ran my e-revo with 7.4 lipo, MM and a 7700 CC motor and I had wheel stands with a 12 tooth pinion and a confirmed 41 mph. This was just a test and the speed control reached 175F and the motor reached 130F and the battery came off at 109F, indicating the truck was over geared. I know the 7700 wont last in the revo but the Neu motor will solve that issue. Is the motor I listed OK for the revo? Based on that test with the 7700, 4s will be just too much power for racing but if you need 4s for effeciency, I will just have to tune every thing down and gear it low. Thanks for the help.