Subpage of Base setup menu

• Req Fuel:Calculate the base fuel multiplier for the engine. This value is calculated using the following formula :

  • Req_fuel = 6.49 * (D / N / I)
    D: engine displacement (cc)
    N: number of primary injectors
    I: injector flowrate (cc/min)

  • This formula applies to gasoline, this value needs to be increased to run with fuels that have lower air fuel ratios. Typically 30-40% higher with E85, and more than double with methanol.
• Injector Flow Rate: This is used solely to calculate fuel consumption if a wheel speed sensor is connected.
• Number Of Cylinders: Total number of cylinders.
• Two/Four Stroke: The system supports two or four stroke engines.
• Injection Type: Most common is port injected using one injector per cylinder.
• Engine Type: Most common is Even Fire where all cylinders fire evenly divided over time in one engine cycle.
• VE Table Control Strategy: If you use Alpha-N (RPM/TPS) please check the Alpha-N/Speed-Density dialog.
• MAT Dependant Retard: Enables or disables the MAT/TPS ignition retard table.
• Barometric Pressure Correction:
  • Static Mode: When the ECU starts up the MAP sensor is sampled once, and stores this value for barometric correction. The maximum accepted deviation from 100 kPa (atmospheric pressure) can be set (eg. 10 kPa). Outside the accepted range, 100 kPa will be used: if the ECU is restarted while engine is running, 45kPa should under no circumstances be used as ambient pressure.
  • Dynamic Mode: The secondary MAP sensor (on the selected analog input) is sampled frequently and used for barometric correction. Minimum pressure can be set. Above 101 kPa (atmospheric pressure), 101 kPa will be used.
    The calibration method of the barometric sensor is the same as the MAP sensor.
    1.1.81 or newer firmware required.
  • Barometric Correction with Anytrim control: The barometric correction can be applied by "Anytrim" too. (1.1.7x or newer firmware)
    Non-linear barometric correction also possible.
    Calculation: Fuel correction[%] = 100% + 0.47% * (101 kPa - Air preassure[kPa]).
    Example: 109% fuel for 81 kPa absolute pressure. Do NOT forget to set 100% above 101kPa.