Originally Posted by
pyro18t
Your only half right.
the 8.5T motors and lower all have true 540 rotors.
the 9T and up all use the 380 sized rotors.
This is why so many of us on here advise against using the higher turn motors in a heavier car.
Jay
That is true, the ones I am speaking about have a heatsink type appearance on the can and are a sensorless motor. They use a 380 size rotor which is what the Mamba Max motors use as well.
In the case of these motors, I wouldn't run them in a car over 1500 grams.