Quote: Originally Posted by vegasDSM
yes and no.. there is so much more to a compressor map....
100% efficiency is found where the middle circle is on the map.. however, that map doesnt take into account the volume of the motor and/or the rpms..
the other equations listed are used to find best/optimal psi..
the turbo is good for a max of 450hp (+-40hp) imo.... and that's on our 2.4 motor w/the 6200redline. (or 6250, whatever it is)..
the compressor map isnt the exact map for the hahn s20g.. the exhaust housing is larger on the hahn turbo.. 10cm instead of 8cm (standard)...
basically, you have to take it for what it's worth...
howstuffworks.com has a great compressor map (how to read) educational tutorial.. i'll see if i can find it...
http://www.rangerpowersports.com/tech/?p=132 that's one... and you'll see it goes into rpm range, pressure ratio's, etc...
cheers
thanks for taking the time to explain that

...... i'll have to check out that link too