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Originally Posted by Clev
Interesting. How many batteries can you fit just behind the driver [in a CRX] with the motor/transaxle back there?
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Depends on how much space is required for the motor, tube-frame, etc. Also how much of the rear luggage space you're willing to turn into battery storage, and how you separate the engine compartment from the rest of the car. Figure using the CRX transmission, a relatively compact electric motor, using not much space for the tubes and walls, and that you're willing to go all the way up to the height of the stock cargo divider. Also, ignore whatever structure you need to hold all of the batteries.
At a guess, I'd say you could get 10-20 full-sized batteries in the available space, including taking up at least some of the space for the fuel tank.
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Again, how many batteries can fit behind the driver? The flaw in his plan is that he wants everything at the back: engine, transmission and batteries.
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I don't know for the Fiero or MR-2, or the X-1/9 for that matter. In the 914, there's a ton of space. You can easily fit a half-dozen batteries in the rear trunk, if you really want to expose the batteries to road hazards you can stuff up to another half-dozen next to the transmission. Plus the electric motors take up a whole lot less space than the stock ICE motor does, so there's easily space for another half-dozen batteries in the engine bay itself! Then, if you're willing to put batteries elsewhere, you can fit another four or six in the fuel tank compartment, and at least six and possibly up to ten more in the front trunk!!
So in the 914, figure you can fit 12 batteries easily in the space available behind the driver. Maybe 18-20 with a bunch of work. And there's the possibility of a lot more if you use space up in front...
Of course, all of the numbers I'm throwing around require the design and fabrication of systems to hold and connect all of those batteries. And some of that is probably not that easy, even if there is sufficient space.
-soD