AEM 30-6905 Universal Programmable EMS-4 - Manual (Page 228)

Page 228 of 279 EMS-4 Install and Tuning Guide_Rev 1.6
5. H ere is an example of a more complex Boost Target setup. Let us assume the vehicle‟s
aero package generates significant downforce and this provides more traction at high
speed. The example below will add 10kPa to the Boost Target at 80 MPH, and 20kPa to
the boost target above 100MPH. This would result in a boost target of 210kPa in 5
th
gear at 80 MPH and 220kPa in 5
th
gear at 112MPH.
6. All 4 tables can be used in conjunction if the tuner desires. Using the Boost Target TPS
table to increase boost at high throttle percentages can make the vehicle more
predictable during steady-state cornering. In the example below, the vehicle has a large
throttle body which does not significantly restrict airflow to the engine between 50-100%
throttle. The Boost target is increased between 50-100% throttle to provide a more linear
power delivery at different throttle angles.