Quote:
Originally Posted by 135i_vs_
It looks like a few N54 guys run on E85 and gasoline combination, however, I have yet to see any dyno results. I couldn't find any...
I want to try this combination, but would like to see some dyno charts.
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A dyno will be as much influenced by the tunes ability to utilize the octane than by just the octane itself. E85 is ~105oct and some simple ratio math if mixed with 91 or 93 can give you the mixed octane. Plenty of folks on the E90 side have proven that the octane of E85 is beneficial, the question yet to be fully answered is how harmful will use an E85 mix be on the fuel system.
I can't say if an E85 mix is or is not corosive to the N54's fuel system, but clearly the fuel system had to be designed to survice some ethenol content given that many US stations have 10% mixed in.