Now begins the serious challenge of fitting all this stuff under Schism's missing
bonnet. To get the ball rolling, I made CAD drawings and cut plastic sprockets to mock up the electric-drive "transmission". I knew I would, but now that I actually see it, I l-o-v-e it!
That's a 20-tooth sprocket on the motor, mounted on a hub that fits the motor's splined output shaft, leading up to a 25-tooth sprocket on the outer end of the jackshaft, a 15-tooth sprocket on the inside, turning a 45-toother on the diff; 630/#60 chain. If my math is correct, that gives me a 4.25:1, single speed, reduction. That should allow both around town and highway driving, on all-electric power.
