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Thread: FMEM and comb stability

  1. #1
    Tuner in Training
    Join Date
    Oct 2019
    Posts
    20

    FMEM and comb stability

    Is it OK to leave a tune that bumps comb stab limit or turbo fmem, but boost is where you want, its steady all the way through and no MILs get set? I crept up with driver demand and limits and this is the first tune where driver demand said anything other than no limit. 2.0L Ecoboost, 21-22psi boost fairly steady

  2. #2
    Tuner
    Join Date
    Feb 2018
    Location
    Kuwait
    Posts
    98
    you may get throttle blade closure due to comb stab limit

  3. #3
    Advanced Tuner
    Join Date
    Sep 2006
    Location
    Arizona
    Posts
    600
    You're better off setting your limits where you want them (or raising them out of the question), and then dialing in your Driver Demand to hit where you want it. That's going to be better than skating off the limiters and getting throttle closures.