Engine Pressure Ratio
Engine Pressure Ratio
The Engine Pressure Ratio function allows the ECU to more accurately calculate the efficiency of the engine. Calculating the MAP / EMAP can show how efficient the engine is at moving air from the inlet to the exhaust, and calculating the MAP / Barometric can show how efficient the engine is at moving relative to Barometric Pressure. The Engine Pressure Ratio is then used as the Load axis for your tuning tables.
Ratio Source - Select the secondary pressure source used to calculate the Engine Pressure Ratio
MAP / EMAP - The Engine Pressure Ratio is calculated with the normal intake MAP Sensor and an Exhaust Manifold Pressure Sensor. An EMAP Sensor is required and must be configured separately.MAP / Barometric - The Engine Pressure Ratio will be calculated with the normal intake MAP Sensor and a Barometric Pressure Sensor. A Baro Sensor is required and must be configured separately.
Display Min - The lowest ratio that can be displayed on any gauge in the software.
Display Max - The highest ratio that can be displayed on any gauge in the Software.