Feedback on Megasquirt Tune?

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  • varg
    No R3VLimiter
    • May 2014
    • 3291

    #31
    Incorporate AFR target just applies a correction factor to the fueling so you can change your fueling by changing your AFR table, after tuning the whole VE table. All other settings have to be perfect for it to work correctly, especially MAT table and dead time.

    PW = REQ_FUEL * VE * MAP * (Warmup/100) * (EGO/100) * (MAT/100) * (Baro/100) * (StoichAFR/TargetAFR) + accel + dead time

    With it on, a well sorted VE table will vary little in boost as MAP climbs and steadily climbing VE numbers as boost increases can be a symptom of running out of fuel (pressure drop). With it off, the VE will increase as the AFR target drops.

    IG @turbovarg
    '91 318is, M20 turbo
    [CoTM: 4-18]
    '94 525iT slicktop, M50B30 + S362SX-E, 600WHP DD or bust
    '93 RX-7 FD3S

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    • Rojoryu
      Member
      • Jul 2016
      • 58

      #32
      Everything is almost back together. Here are pics of the damaged gaskets from the last two blow outs.
      Attached Files
      Last edited by Rojoryu; 12-11-2023, 06:46 PM.

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      • Panici
        Moderator
        • Dec 2009
        • 2318

        #33
        Same cylinder, same spot both times?

        Yeesh I'd be checking that block & head very carefully to make sure they're straight and flat.

        '87 BMW E30 325is Turbo

        '99 BMW E36 M3 - - - '98 BMW E36 328i

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        • Rojoryu
          Member
          • Jul 2016
          • 58

          #34
          Originally posted by Panici
          Same cylinder, same spot both times?

          Yeesh I'd be checking that block & head very carefully to make sure they're straight and flat.
          Head came back from the machine shop with a clear bill of health. Block was checked as well. Fingers crossed that third time is the charm.

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          • Panici
            Moderator
            • Dec 2009
            • 2318

            #35
            Originally posted by Rojoryu
            Head came back from the machine shop with a clear bill of health. Block was checked as well. Fingers crossed that third time is the charm.
            Same machine shop that worked on it the last time?

            '87 BMW E30 325is Turbo

            '99 BMW E36 M3 - - - '98 BMW E36 328i

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