Hi Paul; "Its a 120v system with a Prestolite MTC 4001 motor. This is a rather low rpm per volt, high torque per amp motor, the curves for it are closer to an ADC 9" motor than the ADC 8" motor is more often compared too. The controller is a 450 amp baby DCP (600 motor amps peak, and about 400 battery amps in practice). The motor comes out of current limit at about 3500rpm."
I wondered about your Voltage on the buggy, but assumed you just didn't have the room for more. The pickup would have more room. The controller can take more Voltage. I would think the motor would be happy at 4500 rpm. Why not add batteries. 3500 rpm is not a special speed; efficiency might drop a few % if at all. This sounds very conservative to me. I expect you have a good reason like 'no space' or cosmetics, but 3500 rpm limit really hurts power. I'm tempted to say 120 V is a waste of your hardware, but I could be wrong. ______________________________________________________________________
