7.8 Advanced Engine 7 ADDITIONAL ITEMS: BEYOND BASIC FUEL AND IGNITION CONTROL
7.8.11.1 Basic launch control / flat shift settings
• Launch control option
– Off - all of launch if turned off
– Launch - launch only, no flat shift
– Launch/flatshift - launch and flat shift
• Input on - where the launch input switch is connected
• Launch hard limit - when the launch conditions are met, above this rpm the hard limiter methods are used
• Soft Limit Zone - When the RPM is this far below the launch hard limit, the MS3Pro will apply spark retard,
and if spark cut is used, it will begin to phase in a partial spark cut.
• Soft Limit Retard To - This is the timing (in absolute degrees BTDC) that the MS3Pro will command while
in the soft limit zone.
• Launch retard above - when the launch conditions are met, the timing is retarded above this rpm
• Retard to - the absolute timing to retard to. For example, if you enter 5 in here, the timing will be 5 BTDC,
-3 means 3 ATDC. Using ATDC timing can be useful for building boost, but beware of the potentially harmful
heat it generates in the turbo too.
• Launch fuel add/remove - Allows fueling to be changed while the launch limiter is on.
• Fuel addition - the raw millisecond pulsewidth change to make (+/-)
• Enable launch when TPS above - launch is only active when the throttle is open a certain percentage.
Most users can safely set this to a very low number. Setting it too high can cause launch not to activate as
expected.
• Limiter method
AMP EFI MS3Pro manual version 1.202, firmware 1.5.0, 4/21/2017 Page 241
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