4 ms·Aren't they already 95% efficent. Not to much room for improvement.by FrojoS 14y agoAren't they already 95% efficent. Not to much room for improvement.Geee 14y agoMore amps - your motor is going to melt down. More copper - your motor is going to be very big. With superconducting coil, you could make a very small but infinitely powerful electric motor.FrojoS 14y agoVery cool. Thank you.