Originally Posted by Buckaroo
So if you're comparing two motors of the same wind, what sort of numbers are you looking for to determine which is the better motor?
It depends on what class you are running the motors in and the type of track you are running on. If you are running on a smooth, long open type of track that has a long straight, you would use the motor that has the most RPM. If you have a short track with a lot of corners or a lot of jumps, then the motor with more amp draw would be a better choice. The best way to do this is put your motors on the tester, document the readings for each motor and then put them on the track. You will then start to create a comparison of tester readings against track performance between all of your motors.