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How to: Megasquirt2 v3.0 and Megatune

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  • Tuning - Ignition

  • How to: Megasquirt2 v3.0 and Megatune


    Ignition Set-up

    Base Ignition Settings
    Trigger Offset = 0
    Skip Pulses = 3
    Predictor Algorithm = Alpha-Beta-Gamma
    Alpha % = 90
    Beta % = 80
    Gamma % = 10
    Time Mask = 0
    Percentage mask = 50
    Cranking % = 50
    After-Start % = 70
    Normal Running % = 25
    Check Tach Sync Options = Check Always
    Ignition Input Capture = Rising Edge
    Cranking Trigger = Trigger Rise
    Coil Charging Scheme = Standard Coil Charge
    Spark output = Going High Inverted

    Dwell Settings
    Maximum Dwell Duration = 3.1
    Maximum Spark Duration = 2.0
    Acceleration Compensation = 0.6
    Volt 1 = -4
    Volt 2 = -2
    Volt 3 = 0
    Volt 4 = 2
    Volt 5 = 4
    Duration 1 = 2.4
    Duration 2 = 0.9
    Duration 3 = 0.0
    Duration 4 = -0.5
    Duration 5 = -0.9

    Advanced Ignition Options
    Trigger Wheel Teeth = 0
    Dual Spark Options = No dual spark
    Offset = 0.0
    Start IAT retard = 800
    Full IAT retard = 1500
    FET Output = 0
    VR Input = 0

    That should get you started. Now you need to make a spark table and a VE table. You can start tuning using this http://www.megamanual.com/ms2/tune.htm

    Good Luck!

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