Quote:
Originally Posted by sikeston34m
I gotta disaggree with you on part of this Speedy.
The lower kv motor will make more torque than the higher kv motor.
The magnetism created by using more turns is greater, thus the torque is also greater.
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Not entirely true. Lower kv motors make more torque per amp than high kv motors, but high kv motors will draw way more amps. Also, when you use a smaller pinion gear, you also increase torque at the wheels.
I have tried both the Novak HV4.5 and the HV7.5 - two different kv's, but otherwise identical motors (listed at5,000 kv and 3,000 kv). The amount of torque the HV4.5 has over the HV7.5 is quite a lot. The 7.5 with a 14t pinion takes forever to spool up and is still slower than the hv 4.5 with a 9t, which is a rocket. Not to mention that a 14 tooth on the HV7.5 heats it up way to much. I guess if i was just shooting for 30 mph, the the lower kv motor would be better, because of the power required just to spin the motor, if that answers the question.