I was trying to draw a Compressor map above but heres a pic of one. I got it from
www.turbocharged.com the only problem is the bottom of the map is in lbs/min and I did the CFM.
So does anyone know how to convert cubic inches to pounds per minute? or cubic feet to pounds per minute?
But anyways I think you're supposed to see where your pressure ratio (right side) and your CFM or lbs/min (bottom side) intersect. ideally you want it to be in the highest compressor efficiency % (76%, 73% 70% on the map)
The numbers on the right 69800, 84000, 98300 etc is the RPM of the compressor. You can also see the line that extends from each of those numbers into the map.
And this is just a theory of mine but I think the RPM of the compressor should be kept as low as your pressure ratio and CFM or lbs/min should allow.
This chart is for the T04E 40"
