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N54 JB4 E85 BEF running 91 Octane -
04-10-2022, 12:46 AM
I have a 2008 n54 that is FBO, I was thinking of upgrading my fuel pump to a 450lph and running 50% blended e85 with the e85 backendflash. What map should I run for 20 psi on stock turbos? If I'm far and only have access to 91 Octane so I just turn off the jb4 or change to map 1? Thanks in advance
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04-11-2022, 10:16 AM
I'd suggest map 5 and for 91, reload the pump flash (it only takes a minute) and set the JB4 to map 1.
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