RPM and rollout question/decision help?

[nuz69]

No!
The both motor can handle the same power, that mean geared for the same speed, they will consume EXACTLY the same amout of current (amps).
You can put a higher pinion on the 1850kV BECAUSE it provide more torque for the SAME CURRENT than the 2650kV. Both motors will work exactly as hard.
BUT, the 1850kV will have less RPM, meaning less losses from bearing drag (that mean better efficiency) AND higher bearing lifetimes.
The 1850kV is lighter too, mean less weight in the car and a little less current consumption.
Other than that, the lower kV possess more controlability due to the higher self inductancy of the winding, Although the punch control can help to get some controlability...