("Steve Foley" wrote)
My O-320 cruises at around 2500RPM. That's 340 cubic inches * 2500 RPM *60
Minutes per hour to arrive at about 400,000 gallons of air per hour.
I used 128 cubic inches per gallon. I think that may be right.
http://www.digitaldutch.com/unitconverter/
1 gallon, liquid (US)... = 231 cubic inches
1 gallon, dry (US)........ = 269 cubic inches
128 oz per gallon g
Montblack