With the affect of the AWE-Tuning tubular exhaust manifolds on boost onset measured I moved on to recording the pre-turbine exhaust pressure. These readings confirmed what I suspected, that the pressure near the turbine housing inlet would be greater with the AWE manifolds installed. The reason the pressure is increasing…
Hooked up the pressure sensor to the exhaust manifold once again to measure the pre-turbine pressure. I have not confirmed that the pressure sensor is properly calibrated, but the results shown below are probably in the ballpark. The EGT is flat line because that is a probe located external to…
Interest in demonstrating a relationship between exhaust system back pressure and boost onset led me to run a test where I measured each while applying a covering over the exhaust pipe outlet. The stock MAP sensor was used to record Intake Manifold pressure and a 4 BAR sensor was connected…
