Originally Posted by
madm
I have recently acquired a used LRP V8.1 speed control. I'm running it in a T4 with SMC 5200 40C 7.4V Lipo and a Trinity 19T brushed motor. My son has run it in three races and two out of the three times it seemed to lose power until it stopped and would not go anymore. It appears to hurt the motor. The motors are about 170 degrees when this happens. I changed the ESC/motor and it runns great with the same gears with the motor temp of 130 degrees at the end of the race. I'm thinking to much power to the motor. I can adjust the max amps to the motor on the ESC but am looking for any suggestions to fix this or other people that have had this problem.
Thanks
I'm thinking it's the motor. Both motors you tried are getting the same voltage. A motor draws as much power (amps) as it needs. The battery and ESC don't decide this, the motor does. I think you have a brush issue.