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Thread: How to tune E85 or E85 mix in cobb AP?

  1. #1

    Default How to tune E85 or E85 mix in cobb AP?

    This is what I've done:
    When Cobb AP arrived today, I attempted to use APR to tune an e85 mix map (1:4 mix)
    So using stage 1 CS intake+TIH as a base MAP,
    I've adjusted the

    1. injector scalars
    2. SFGs
    3. ignition timings.
    Then went to the petrol station to fill up, then flashed afterwards
    Have been monitoring KR and fuel pressures and they were good
    The car seems faster than before too

    Is there anything I'm doing wrong, or anything else that I should be doing as well?

  2. Default

    What is your ignition timing set to?

  3. #3

    Default

    edge, At Load 2.00 they are:
    500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000
    -14.00 -11.05 -8.10 -5.14 -0.69 5.26 7.22 8.00 9.00 10.00 11.00 12.00 13.00 14.00

  4. #4

    Default

    Where did you learn how to tune via ATR?

  5. #5

    Default

    Rayd,
    Mostly from reading threads on MazdaSpeed 3/6 - E85 Fueling - Mazdaspeed Forums
    I haven't yet come across a step by step guide on how to tune E85 on ATR, but only gathered info from different inputs/posts, so I'm not sure if I'm doing everything correctly...

    This article has been very useful to me so far about using the ATR: Training - Mazdaspeed Forums

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