Im researching to tune a 2003 Grand Prix GTP PCM on a highly modified 3800 Series II engine. Since I havent gotten the car yet I decided to pull down some tunes form the HPT repo to see what settings I have available to me. I see in the Primary VE vs RPM vs MAP that it only goes to 140kpa. Thats not much boost at all. The engine thats coming to me used to run around 190kpa in another car with a Haltech.
What are people doing with HPT to accommodate above 140kpa? Am I missing something obvious here?