Quote:
Originally Posted by California98Civic
There are Civic adaper plates for electric motors out there, allowing the factory tranny to be drive train to the motor. ... can you shift gears while running the motor? I guess you take your foot off an accelerato and the motor spins at an ldle? Or it stopes spinning entirely?
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Motor to transmission adaptor plates are already available for many makes and models, and it is not too big a deal to make an adaptor plate either, if you can't find a pre made one. The alignment and mating of the motor shaft and the transmission is very critical, so I had a machine shop mill out a bunch of them for me, built to my specs.
Here is what my motor adaptors look like
Since there is a lot more torque than the factory clutch can handle, I get the slightly larger flywheel from a four cylinder Metro and have it lightened and remove the starter ring. Then I get a higher performance clutch to bolt onto it.
Here is the whole set up. You can see the clutch arm over there on the transmission. This is actually a lot of motor for a car like this, so the factory 5 speed transmission looks pretty dinky next to this big motor. Now the clutch works just like it did on the ICE engine.
You don't really need a clutch on an EV with a DC motor since DC motors don't have regen, which makes them very easy to shift with out the clutch. With an AC motor with off-throttle regen, it is impossible to do clutchless shifts.