Precision Turbo and Engine BigStuff3 GEN3 1st Gear Spark Retard with Traction Control System (SR2) - Manual (Page 12)

Rev 1.0 12
Next, configure the 1
st
Gear Timer Override and Blend Rate cells. The length of time that the 1
st
Gear
Retard system remains active is defined by the user in the cell titled “1
st
Gear Timer OverRide” shown
below. Once the 1
st
Gear Retard system times-out (from the point when the trans-brake or clutch are
released), the system transitions to a zero retard value (back to the timing in the spark map) using the blend
feature. The blend rate is defined by the user in the cell titled “BlendRate” shown below. There are a
maximum of 255 counts available.
Note: 255 counts will make the software blend slowly, 1 count blends quickly. Use any number between 1
and 255 to achieve the desired blend rate.
The Replay below illustrates the following:
• The 1 st
Gear Timing Retard curve developed from the “1
st
gear RPM Axis Config Table” and “1
st
Stage Boost Spark Table” described above.
• The amount of time the GEN3 ECU allows the 1 st
Gear Retard system to remain active, based on the
value inputted into the “1
st
Gear timer OverRide” shown directly above.
• The blend Rate (the slope of the line and time) the GEN3 ECU uses to bring the retard values back to
zero (back to the based spark map values).