Calculating theoretical efficiency.

Frankencar said:

I'm working on my first EV conversion and really want to run through a lot of theoretical configurations for my battery pack to get the performance I want out of it, but one thing I'm having trouble with is getting an number for "efficiency" or rather, an estimate of watts/mile. This seems to be the key to making any calculations relevant to my vehicle (1986 Mazda RX-7) especially when it comes to the battery pack. What kind of numbers do I need and is there an equation to plug them in to, even if it is just a rough estimate it would really help.

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