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How you going to do the throttle?
I also think your will have to have the electric motor give you an assist when starting from a dead stop.
If you geared it where it would pull from a dead spot, I don't think it would go 45 before hitting redline. The CVT gives about a 3 to 1 gear advantage and then go to about 1 to 1. The redline on those little engines is 3600 rpm, but you can push them to 4K pretty safely. Just remebering when I played with gocarts as a kid, the carts when geared to go 45 were pretty slow starting off. I realize the CVT is giving you a 3-1 gear advantage, but the go carts weighed around 250 lbs with driver and your leaf is more than 10 times that amount. given your 7 ft-lbs of torque, times 3, your still at only 21 ft lbs trying to push a 3500 lb car.
Still a neat idea to extend range.
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