Received this question by e-mail:
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Hi Darin - What did you use for the coupling from the motor to the transmission input shaft? I was thinking about a Lovejoy coupling, but not sure if that's the best way to go.
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The car uses a customized Lovejoy coupler (customized because the motor has an internal female splined shaft; welded a male stub shaft to the lovejoy on the motor side; welded the clutch hub on the transmission side of the coupler to slip on to the input shaft).
You can see pics here:
http://ecomodder.com/forum/hreshowth...3-post490.html
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Did you end up using the controller that came with the forklift, or was this something that you added afterward. I hear what you are saying about the speed of the motor at lower voltages (like 48 volts) and was wondering if the stock controller that came with the lift would handle 72 or 96 volts?
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The forklift's original SCR type controller wasn't really the best match for a small battery pack.
See this post for an explanation of why (which I'm just parrotting from smarter people)
PWM mosfet based ones are better. The car has had three progressively more powerful 48v Curtis golf cart controllers in it, starting with a 225A one, then 300, and now 400.
The forklift controller was also limited to 48v. Its only redeeming feature was a built-in bypass that would have automatically handled a direct motor/battery connection for high load demands.