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Thread: 15-17 ecoboost mustang flex fuel??

  1. #1
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    15-17 ecoboost mustang flex fuel??

    Just updated to the latest beta of 5.1 ish and I was on 4.13 for ages and just seen there is flex fuel switch now. Had any of y?all tried it out? Would be great to be able to work with a e30 bled that way. Just looking for feedback

  2. #2
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    Noticed that too, they added a lot more than just that.
    Haven't had a chance to see if it actually works though.

    Edit:
    Just populated all the flex tables that I could find, I think I have a good test tune set up for it... But, we just got 3" of snow, so not a good time to test it. lol

    I also can't really test much more than the 10% ethanol that our 93 octane already has, I'm already out of fuel flow with my HPFP... Might be able to do 20% if I reduce max load.
    Last edited by Seishuku; 01-27-2023 at 03:34 PM.

  3. #3
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    yea i was going to say your about capped out already lol, i havent seen a flex fuel ecoboost file so not sure about the blending tables and all i guess i can try like i have the s550 coyote set up

  4. #4
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    Here's what I got, if you're interested.
    Took some notes from a stock F150 5.0 flex tune, most of the corrections seemed about right to me, I feel pretty good about it.
    Attached Files Attached Files