7.8 Advanced Engine 7 ADDITIONAL ITEMS: BEYOND BASIC FUEL AND IGNITION CONTROL
• Timeout - Once you have been moving for this number of seconds, VSS based launch control is locked out
until next stop. Set to zero to make it permanently active (no timeout.)
• Re-arm below speed - Below this speed the wheel speed launch is re-armed. Typically set to a very low
number.
• Enable gear checking - Allows speed based launch control to only engage in certain gears.
• Maximum gear - If gear checking is enabled, this is the highest gear you can use this setting.
• Limiter method - Allows using a fuel and/or spark cut for speed based launch. The RPM limit and amount
of spark retard is taken from the curve at the right.
• Retard to - The absolute timing to use when at the rev limit. Below the rev limit, the MS3Pro uses the green
curve for timing retard.
• Launch fuel add / remove - Allows adding pulse width (specified by Fuel Addition) when on the launch
limiter. Entering a negative value in Fuel Addition removes fuel.
7.8.14 Sequential shift cut
Another drag racing feature, this one is intended for use with air shifters and sequentially shifted transmissions.
The MS3Pro can cut the ignition during shifting and also control the air shifter solenoid valve. Note that automatic
shift control and gear based delays require setting up the gear input under Speed and Gear Sensors. The shifting
will happen in this sequence:
1. As soon as the button is pressed or automatic shift is required, the air shifter solenoid is turned on.
2. The MS3Pro pauses for a time defined by the shift cut delay before cutting spark.
3. The MS3Pro waits for the specified spark cut time plus any gear based delay, if applied. During this point,
the solenoid turns off before the ignition resumes.
4. The ignition resumes firing.
5. The MS3Pro starts the re-shift hold off timer. The MS3Pro will not shift again until this timer runs out.
AMP EFI MS3Pro manual version 1.202, firmware 1.5.0, 4/21/2017 Page 246
To Next Page
Loading...