[CallMeCrazy]

This is the main problem I have been having with the GM series turbocharger, trying to track down/build an accurate compressor flow map, compressor ratio, and correct A/R of the turbo itself. This is why my measurments/data is so important. When turbocharging, you HAVE to know these numbers and be able to plug them in mathematically. if you have an ill suited turbo, all the fuel in the world isn't going to help. By building a compressor map, I can figure out the turbo efficiency and even calculate how many cfm it pushes at various rpms and at different levels of boost as well. I found this thread by accident and to date it looks like I am the only one lookign to do any real calculations on this turbo, the rest of you plan on just slapping it on and crossing your fingers? lol