[john marcella]

Originally Posted by p4msi1

How in the hell are you supposed to figure this out!!!! Does all this take into account velocities at different RPM points? I guess you would use probes to gather the info needed? Vaught and Wilkie I am not.

You can't there is no math for it , that's kind of the point. Well I take some of that back there is math for it but it's so circumstantial on so many different things dynamically that it's almost impossible to come up with calculations.
You have to try stuff notice Trends and follow the data path. The problem is is you can't get fixated on one part of the system. It doesn't work because that part of the system is dependent on another part of the system and so on.
One of the biggest things that I see in this thread is people want to refer to a boosted motor as such a boosted motor. Shouldn't do that it's a turbo motor or a blower motor , 2very different approaches as well as requirements.