The 2012 HCH motor is... offset 2mm? Is it unbalanced, or.. ? I guess I'd have to see it.
I've personally done some "EV" driving with just an injector kill switch. It throws a CEL, and you have to open the throttle plate fully to get full assist so the pumping losses are huge. I found I wasn't really able to maintain any speed at all in 5th gear.
Anyway, with all the trouble to decouple the low-powered (and I believe, not terribly efficient by modern standards?) IMA from the ICE, would it not be easier to just add a second electric motor, and perhaps attach it to the CV axles or something? You'd keep auto-stop intact, and could have as much or as little power as you'd like. You could even use both motors at once when accelerating if you so desired.
^ I was thinking about this some weeks ago, and at that point, I decided, why even keep the gas engine? If you're going to add a new battery and electric motor, you can save yourself ~350lbs by removing the ICE and throwing some extra battery in there.
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