Did some more searching around on the E85 topic. From what I'm reading the huge reason people aren't doing it is cost. By the time you buy the XDI-60, DW300C, XDI+50 injectors, ethanol sensor, and get the proper tuning for it you're almost into it for 5000, and the tuning has to be done properly and the ethanol content monitored since E85's octane rating changes quite a bit through the year. Since the stock ECM isn't setup for it you're still piggybacking it to a point like the E30+ it sounds like. Also, one of the tuners was saying that the benefits are barely there for it, because the engine hits max timing adjustment at E40-E50 blend.
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