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Thread: $0D and Flex Fuel

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    Fuel Injected! PJG1173's Avatar
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    Nov 2011
    Jacksonville NC

    $0D and Flex Fuel

    As the title says I am getting ready to tune my engine for 73% ethanol. I have searched and all I can come up with is people tuning odb2. Has anyone experimented with flex fuel? trying to get a feel for what I need to get started. I have already upgraded the injectors to 60# (MPFI), re-calibrated my WBo2 for E85, installed plastic fuel lines, installed an aeromotive 340lph pump and adjustable FPR. I am only running a open loop tune. I buying my e85 in batches of 50-60 gal at a time so for now consistency is not an issue from tank to tank. For any of you who have worked with E85ish fuel what changes have you made? should I set the AFR in the "Open Loop AFR vs. Temperature vs. Vacuum" table to something more inline with ethanol? any pointers would be greatly appreciated.
    Last edited by PJG1173; 03-25-2020 at 06:04 AM.
    87 4Runner, 15" spring lift, 3" body, chevy vortec 355, 5.29 gears, 38.5x15.5x15" Boggers, 280hr, 16168625 running $0D
    93 S10, 12" spring lift, 4.56 gears, F/R lockers, 36x12.5x15 TSL's, Syclone turbo/manifolds, 266HR cam, p&p vortec heads, $0D Marine MPFI.
    05 Silverado, 2' lift, 4" exhaust, Bully Dog programmer,

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