Ive had that idea for my sidekick ljx. I got a 48 volt 4 kilowatt pack from my engine phev kit for my honda I was going to use to power a motor. Of course I can always find some 0 gauge welding wire, a starter solonoid and a starter battery for a simple click bang method of speed control and a crude test.
Yeah, the speed controller is rather expensive and even more so if you want regen capabilities.
I saw the hybrid va tech made and displayed at the state fair in VA a few years ago. It was basically front wheel drive ford escape using a turbo charged diesel power plant the rear was electric powered and the batterys/guts was in the rear behind the rear seats. I dont think the mpg was that impressive, but it worked.
My sidekick loves to coast, so if I can FAS it and use a few hp to extend the coating once up to speed I am sure my mpg could easily hit 40 from its current 30mpg.
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