[johnrobholmes]

As long as you weren't saturating the motor asking for too much torque, two motors with different kv producing the same power will be quite similar. The 9000kv motor would have more bearing and drivetrain losses. The 2000kv motor may have a lower efficiency from being overgeared however. Ideally you would want to run a motor that is volted to spin near the max rpm, for performance.


On 2s lipo both setups would be drawing the same current at 60mph. This leads me to believe that the higher KV motor would actually be better for the situation, as the motor resistance is lower and would produce less heat.