I push 9 psi of boost out of my Vortech.
I am running 10.1:1 like DemonSVT said. Yes that is pretty high and especially for how much boost i am pulling. Having such high compression sucks due to each time I get my Contour under boost the engine temps sky rocket.
What I do about this is when I am out racing street/track I just let the car cool off for a good 30+ minutes. Unless you are running an intercooler/aftercooler this is pretty much a must to run consistant boost numbers.
For example I went to the track and ran a 99 MPH pass right when I got there. Well I had let the Contour cool down for a good 45 minutes and went back at it and pulled a 101 MPH.
Turbo kit will be more consistant, but I don't think anyone knows how reliable this kit is going to be. I am sure it will be a bit more than this Vortech. Remember when you do run your car under boost you pretty much are going to be constantly tuning the car. One day the car can run great, the next it feels like a pig. Good luck and yes research is highly recommended like Greg (DemonSVT) said. Email me at PhatSVT@aol.com if needing some more info.
