No, my escs are fine, i'm just rebuilding my frame, and bought new motors and escs, old motors were 750 kv rc-timers and 18 amp escs, new motors are 800kv NTM propdrive and the escs are 40amps, the props are 11x4,7
the 18amp escs, barely got warm when running 3/4 throttle, so i guess, they can handle the 800 kv right?