Originally Posted by rickyd123
I'm new and very green. I was looking at forklift motors on ebay. It looked like most all of them only went to a max of 48 volts. That isn't enough for a car. Right? The motors listed on this site are 144volts. So if I want to be able to go 40 mph in say a ford probe. A fork lift motor isn't going to cut it. Right?
Many forklift motors are good for EV conversions. Some are better than others. Some not so good, like a pump motor with internal drive end and intermittent rating.
In order for a good doner lift motor that was originally rated for 36/48 volts to be used at 144, the brush timing needs to be advanced to mitigate the arcing that would occur at higher rpm/voltage. The continuous rating does not change however, the intermittent power requirements in an EV can still fall within acceptable limits.
I have a 9" GE lift motor in my Mazda (Ranger) pick up. It was originally rated for 36/48 volts. It works fine and has more power than the original 4 litre 6 cylinder. I limit the voltage to the motor at 170 volts and can drive hiway speeds without a problem. Supplementary cooling (blower) can aid in keeping it cool and improving on the original continuous HP rating also.