[Updated 12/27/2020] Milwaukee M18 and an converted alternator

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I'm working on my first build. I have an alternator from an old Dodge or Chrysler, I'm not sure (I got it for free from a friend) that was converted to run as a DC brushless motor. I have a hall effect throttle, 3x Milwaukee M18 batteries for 54V nominal, and a buck converter for the commutator.


[Update 12/27/2020]
So after that test, I've started some body work, but I've gotten the electronics figured out. Here's what I've got:
 
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EpsilonZero

...still cheaper than a boat!
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Did you get the go-kart part yet? I'm sure we all want to see what this motor conversion can do.
 
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I keep an eye out on case I see one for a good price, but what I have right now is a complete front end and rear end of a kid's ATV. If I don't find a good pre-built I'll build the main body and weld on the pieces I have.
 

ShadowNightmares

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Hey, nice to meet someone else that will use a converted alternator.
I would sincerely recommend you to check out these videos and think about installing hall sensors on your alternator
(from YT/Enrengineering)
(from YT/Electrojuanyu)
(from YT/Austiwawa)
Sensored BLDC motors can offer more torque at low speeds, and will help to avoid "cogging" while it tries to synchronize.
 
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I'm very strongly considering that now. It looks simple and easy enough, and I actually have hall sensors laying around from a 5-pack I bought so I could measure its RPM. The only thing is that mine aren't latching, so I'm not sure if they'll work. I'll have to do a little more research.
 
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