Just curious- but what kind of charging system are you planning on ?? If I remember right the electro-valve systems failed because of the high voltage requirements, they simply couldn't be accurately be driven on a 12 volt system.
Then there's the weight of the system- wouldn't multiple...
"A simple non scientific test:
Let the engine idle for a specific time record fuel consumption and adjust data for mixture differences. Then run at 3000 plus rpms for same time. Unloaded tests.
I know there are losses that need to be addressed."
So your saying if my car idles at 800rpm in park...
I would think at a lower rpm the load would be higher, so the fuel requirement should be a bit higher with a higher load.
I personnally get better milage per gallon running my bike at 90 vs 65 (tho the rpm's are higher (and fuel consumption) the distance covered offset the increased fuel used).
