I have no idea. But there are 231 cubic inches in a U.S. gallon. Now, excuse my limited engine experience, but if it is a 4 stroke you are only drawing air on one stroke so it would take two revolutions to complete one “inhalation” for each cylinder for your calculations?
A gallon of air is a gallon of air at 23 psi or 230 psi. If you are looking to find the gallons of air at sea level pressure then there is some more ciphering you gots to do. [B]ft<SUP>3</SUP> / hr = ( lbs / hr ) / ( lbs / ft<SUP>3</SUP> )[/B]
so you would get your cubic feet per hour = by dividing the weight (density) of the compressed gas at it’s temperature /by the weight (density) of the air at 1 atmosphere at your reference temperature or what ever reference you wanted. Do all that and convert to gallons per hour. 7.48 gallons in 1 cubic foot.
Probably cause you to have more questions, but this should get you close. Depends on whether you are trying to win a bar bet or get your PHD. My internet signal won’t hold out long enough to get you any more info. Post back what you find. Inquiring minds want to know.
And remember there are no stupid questions, but there are a lot of inquisitive idiots! (Please don’t take offense to that as it just my sense of humor, I would certainly be one of the later).
Good luck and cut me in on the profits is this was a bar bet.