Hi everyone!



I was wondering: in evaluating a compressor map for a turbo application, do I just draw the line from the pressure ratio that corresponds to the boost level I'm planning on running? I know this seems like a stupid question, because I think I already know the answer, but I'm sure it'll put me at ease.



Thanks!

 

Calculate the CFM at the lowest RPM you expect full boost. Starting at the intersection of that CFM with the pressure ratio that you will be running, draw a horizontal line to the right up to the CFM at the highest RPM.



You can also calculate the CFM at lower RPM (say 2000) and draw a line from that CFM, at pressure ratio 1, to the starting point of the horizontal line to kind of have an idea of what happens while you build up boost.



Read this http://forums.bimmerforums.com/forum...d.php?t=258035

 

Or this http://www.ztechz.net/id6.html



And if you want to map a turbo for you car car....



http://www.lovehorsepower.com/joomla...id=4&Itemid=88