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View Poll Results: Small motor EV build w/ Trans...yes or no??
Yes, a small trans with a small motor would work well 1 16.67%
No, electric motors don't need transmissions. 5 83.33%
Why the hell are you making an electric scooter project? 0 0%
Voters: 6. You may not vote on this poll

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Old 05-17-2009, 12:10 AM   #21 (permalink)
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Quote:
Originally Posted by Ryland View Post
Also remember that motors put out their peak power at 0rpm, so you get full power from a dead stop to get you going, with your 6hp golf cart motor that could be as much as 45hp for a few seconds, it's an amazing amount of power, yes it's hard on your batteries and the rest of your drive train and if you are me you learn it's hard on your suspension as well, as just the other day I had the problem of my leaf spring snapping in half, as the axle torque is countered by the cars suspension, those 6hp motors have alot of power from a dead stop.
Motors put out their peak torque at zero RPM, but no power at all. Any force times zero distance is zero work.

Golf carts are geared for modest speeds, with high rolling resistance. At highway speeds, the motor would turn too fast and break. A gear set reduces efficiency by a set percentage, plus a small constant, not just a constant. However, it may allow the motor to run more efficiently on average, and increase acceleration too.

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