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BayArea335XI BayArea335XI is offline
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Default 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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Steve @ BMS/Fuel-It!'s Avatar
Steve @ BMS/Fuel-It! Steve @ BMS/Fuel-It! is offline
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Default 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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