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Originally Posted by Cadtech
I could, but what fun would that be?:027:
Actually, the store bought FOC doesn't address the issue of locking the second gear to the Primary clutch. Which means you can't use the motor to reverse the geartrain, correct? (I haven't seen a Revo FOC installed, so I don't know). Do you keep first gear in the tranny with a FOC installed?
My other rationale was to try this as if I had zero budget (there are always folks who save all their pennies for new motors/controllers, and have nothing left for anything else). Usually, this quickly degrades to me building/milling some elaborate piece that costs 50 times what a store bought piece would - but that is one of the most enjoyable parts of this hobby for me...
...building parts!
Fortunately, this is a pretty simple conversion that requires no extra parts to purchase. Wouldn't even need a tap if you were to drill/pin/epoxy the parts together.
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Ok, I guess it would be less fun.
The FOC doesn't even touch the first and second gears at all. It removes the sensor gear (the one with the crenellations), reverse idler, dog gear, shift fork, and reverse output gear. The forward output gear is replaced with one that pins directly to the output shaft. Oh, and the output shaft is replaced as well. You get a few other odds/ends like a plug to cover the shifter hole, a cover for the OptiDrive sensor, and a blank cover for the OptiDrive itself. When I did mine, I removed first gear and the associated bearings and added the wide ratio gear set so the final gearing was closer to an E-Maxx.
This thread explains exactly what I did and it works well. Posts
#23 and
#25 are the ones you really want to read.
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