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Totally doable; but by that point, it would probably be over the original weight, not to mention ballooning project costs. Kind of a textbook case of mission creep. And if the engine hydrolocks after the brushless motors get up to speed with good contact on the flywheel, they'll probably blow it...

Thanks! Field testing revealed a few issues.. It works, and starts cars, but it's prone to cogging. It helps if I spin up before the flywheel enagages, but that's not ideal. I'm tempted to try a sensored brushed motor, but I can only find those in 3650 sizes or 42mm+ cans that won't fit...

I love my bump box, but it weighs as much as a whole RC car. I figured I could get the same torque from a single 3660 motor as its double 550 brushed motors, so I set about building the most superfluous brushless conversion ever. A 10BL60 ESC with the fan removed, an arduino pro mini, and a...