- Jun 12, 2004
sup guys, im looking for a hvlp gun for my air compressor but all the guns i look at say something like 5scfm @ 40 psi. and all sorts of different numbers like this at different psi's. my question is my compressor is rated at 5.1 scfm at 90 psi. how do i know how much cfm my compressor is at 40 psi and such?