AEM 30-6905 Universal Programmable EMS-4 - Manual (Page 244)

Page 244 of 279 EMS-4 Install and Tuning Guide_Rev 1.6
exceeded, 100% cut duty is applied. Automatically set by rev limiter setup wizard.
2Step Retard C
Units: Constant Description: Offset used for ignition timing retard calculation while 2Step
conditionsare met. Cut Duty = Cut C + ((Desired RPM Control Range/50)) * Cut M. The higher
the value for Cut C, the more ignition retard is applied once the RPM target isreached. Once
Desired Control Range is exceeded, maximum ignition retard is applied. Maximum timing retard
depends on ignition range. Typical range is -17 degrees to +72 degrees. Automatically set by
rev limiter setup wizard.
2Step Retard M
Units: Multiplier Description: Multiplier used for ignition timing retard calculation while
2Stepconditions are met. Cut Duty = Cut C + ((Desired RPM Control Range/50)) * Cut M. The
higher the value for Cut M, the finer the control range. Once Desired Control Range is
exceeded, maximum ignition retard is applied. Maximum timing retard depends on ignition
range. Typical range is -17 degrees to +72 degrees. Automatically set by rev limiter setup
wizard.