Quote:
Originally Posted by JsL
My guess would be AFD dyno'd their application and tailored it to the M3.
eFlexfuel probably has a generic e85 compensation algorithm for every vehicle and sells a kit that covers all 4 cylinder cars, 6 cylinder cars, 8 cylinder cars etc. The only difference is number of connector based on # of cylinders of the engine, and injector connector type.
FYI that it seems most flex fuel kits use a Delphi SE1002 or GM 13577429 sensor. Like the one below.
https://paceperformance.com/i-108014...ensor-e85.html |
I don't understand how you can dyno "tailor" the device to one vehicle or another. The stoichiometry (ratio) of air/fuel is dictated by the fuel; one value for gasoline, another for ethanol. More or less fuel for a given amount of air just means a rich or a lean mixture. Less power but safety for rich, more power but dangerous for lean. I could be wrong but simply replacing gasoline with ethanol should not result in more power unless you optimize the timing. Or make a potentially dangerous change in the air/fuel ratio. I don't see how the AFD device could change the timing directly so what does that leave?
Is AFD making a fair comparison i.e. to a fully adapted vehicle fueled with 93 octane pump gas? Or to a California car with 91?