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Thread: Tuning the AFM on a 2010 LMG

  1. #1
    Senior Member Naf's Avatar
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    Question Tuning the AFM on a 2010 LMG

    OK, i am going to be getting the CCA 189-423-13 cam and phaser kit for my truck.

    I am curious what should my settings be for the cam phasing section be?

    Or just leave them blank?
    American Muscle, European Design, Japanese Tactics

  2. #2
    Senior Member Naf's Avatar
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    bringin this back to life. But now i have a L98 with flex fuel, Ported LS3 heads and AFM.

    how do i know if i am doin good on the timin for the AFM?
    American Muscle, European Design, Japanese Tactics

  3. #3
    Senior Member Naf's Avatar
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    Quote Originally Posted by Naf View Post
    bringin this back to life. But now i have a L98 with flex fuel, Ported LS3 heads and AFM.

    how do i know if i am doin good on the timin for the AFM?
    Latest news.

    I looked at the escalade tune and noticed a slight increase in AFM timing vs the main table. So i mimiced it on mine. I have noticed a stronger pull in afm mode with even a higher speed in afm. But i am still curious to know if anyone else pioneered this. I have noticed a sound when in afm but now it sounds stock. There is a slight increase in rpm but nuttin drastic. I will be installin a 4" maf and see it it helps with the AFM mode.

    see tune for reference
    American Muscle, European Design, Japanese Tactics

  4. #4
    Senior Member Naf's Avatar
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    Still messin with the timing

    At one point i had 9 degrees of knock just in AFM mode. I dropped the timing by 1 degree and i am seeing only 6 degrees at 1400-1600rpm.

    I need to keep the timing up for the truck doesnt have enough power to keep it in 4cyl mode at 100kph and 1500rpm. If i keep the timing up i get knock, but it holds. Lower the timing i get less knock but it doesnt stay in 4cyl mode.

    This is a problem...
    American Muscle, European Design, Japanese Tactics

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