[19bonestock88]

The regular drivebelt can support the levels of power provided by the electric motor; consider that the Cobalt SS supercharged, when modded and generating 300whp with the stock blower, the blower is contributing losses of 25-30hp by being so massively overspun(2.7" pulley), and no belt slip with proper tensioner and belt length... Adding a similar amount with an electric motor is surely possible...

I found a small diameter motor that is rated at 4hp@13.6V, but mounting it would be a challenge, maybe weld brackets to the valve cover? I don't want to get the eAssist alternator, not wanting to figure out its complicated logic to not only charge the cars battery but also assist the engines output at high demand, low RPM situations... Basically, I would use the motor when climbing hills to keep the transmission from downshifting(or even to avoid adding throttle at all), and maybe to help when taking off...

But, ROI would be horrendous, all considered...