Cheap Supercharger!

[machinist@large]

One quick question.....

Well...

212cc converts to 12.9370337 cubic inches...which converts to 0.00748671 cubic feet

Multiply 0.00748671 by 1800, you get 13.476078

So, best case scenario (like you'd ever actually achieve atmospheric pressure in a ICE combustion chamber ), you're moving 13.476078 CFM of air and fuel through the combustion chamber.

Just to clarify, you're only counting the intake stroke (1800 per min. for an engine running at 3600 RPM)? Sounds like it to me; I just thought I'd ask for clarification for those members who don't live, eat & breath all things ICE.....

 

[devino246]

Just to clarify, you're only counting the intake stroke (1800 per min. for an engine running at 3600 RPM)? Sounds like it to me; I just thought I'd ask for clarification for those members who don't live, eat & breath all things ICE.....

Yes, 1800 intake strokes per minute at 3600 RPM.

To elaborate on my previous post, IIRC, 70-80% volumetric efficiency (that is, 70-80% of atmospheric pressure in the combustion chamber) is very good for a naturally aspirated engine. If a Predator had a volumetric efficiency of 70%, it'd be running through 9.4332546 cu.ft. of a/f mix per minute.