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Thread: MAF calibration maxed

  1. #1
    Tuner in Training
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    Jan 2019
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    MAF calibration maxed

    Log image.PNG
    So my MAF is maxed out at 2700rpm so what to I do now...... 5in and re-scale but I have no idea how to do that!

  2. #2
    Quote Originally Posted by Wrangas87 View Post
    Log image.PNG
    So my MAF is maxed out at 2700rpm so what to I do now...... 5in and re-scale but I have no idea how to do that!
    So you don't know if you rescaled correctly? What modifications other than the intake?

  3. #3
    Tuner in Training
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    Quote Originally Posted by CKrueg View Post
    So you don't know if you rescaled correctly? What modifications other than the intake?
    Currently I fitted custom up pipes SXE364.5, 15+ injectors and fuel pump, built gearbox, external wastegate, 4in custom intake and custom hot and cold side piping6958ca4f-3f17-45c3-a228-8a4fb793dca3.jpg so far.

  4. #4
    Potential Tuner
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    Jun 2020
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    Add about 12% to the MAF calculation curve from factory and roll with it.

  5. #5
    Tuner in Training
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    Would you add 12% to the stock intake or 5in? And why 12% out of interest?

  6. #6
    Potential Tuner
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    Jun 2020
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    For the 5? To compensate for the now slowed air velocity going across the MAF sensor, since you have changed the diameter of the intake it thinks it has less air.... and 12% because that?s what it takes to bring the MAF back up to about factory air flow.
    Last edited by Dieselguy; 09-21-2020 at 08:45 PM. Reason: Forgot something