Quote:
Originally Posted by Beedub
hey marcus!! glad to have you over here!!! BTW love that video..... thats the type of video that makes me make cake to watch!! pro-efi is the real deal imo...... i just love what it does!! This z4m is serious and im loving all the tuned z4m's coming out, its a perfect base to mod imo..... marcus, thanks for making this post and make sure you stick around ;-) love your m3 btw..... flex fuel makes me seriously consider pro-efi, but im not sure how it works with supercharged setups....
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For an E85 conversion you need to flow 40% (roughly) more fuel, and its recommended (but not required) that you have teflon coated lines.. most 2003ish+fuel systems have something other than rubber for the fuel lines/etc so you'd probably be fine with just an uprated intank fuel pump. You'll also need bigger injectors to flow that additional fuel and a flex fuel sensor as well as a ECU that supports flex fuel. If you wanted flex fuel capabilities that is. If you're fine with just straight e85 (meaning you can't mix the two fuels) you'd just need a tune, injectors and an uprated pump.
You'd see gains on a s/c setup with E85 but not as dramatic as a turbo being your s/c is belt driven and our turbos are exhaust driven. E85 is 40% more fuel, which means more exhaust volume, which means a faster spool.. its also capable on our S54's to make 900rwhp+ on just E85. So if you had a meth setup running E85 would be similar results as your meth setup, but 100% of the time, and with less safety/reliability issues.