Need Turbo advice (secret project!)
I don't own an mn12 anymore. But, when I was visiting here on a regular occasion I noticed some of you were very knowledgeable in the field of turbocharging. So, I have a project that I can't fully disclose. I need some help in turbo selection as the application is far from conventional and the normal selection procedure doesn't completely apply. Here are the parameters I'm working with: Turbo is being fed by a 5.0L engine that sees a maximum of about 5000 rpm. The turbo IS NOT feeding the intake of the engine and is in no way being utilized to enhance power. I need a temperature rise of no more than 100deg F. (my calculations tell me no more than 4psi, sound right) . This will be flowing air through a vessel with a constant restriction value, not yet determined, but relatively low. I am aware that I am asking a turbo to do a job that it wasn't designed for by flowing large volumes of air at minimal pressure. That being said, I need as much CFM as possible beginning as low in the rpm range as possible. Again, the boost pressure is not near as important as cfm as long as it doesn't exceed a value that will produce more than 100degF temp rise. Will a larger unit flow considerable CFM at low (less than 4psi) numbers or will it not flow much cfm at all until higher psi can be attained. Ideally, I would like to see 1000 cfm below 4psi from just offf idle to redline, but I know that is no where near realistic. A more realistic figure might be 500cfm at 4psi at as low of an rpm as possible. I thank all of you in advance for your input. I know this is a million miles "outside the box" I am new to turbos and there is a great wealth of information available, but I am having difficulty relating all of this information to my situation. I look forward to your input.