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Originally Posted by blue2000s
That's totally incorrect. It's always a restriction and there will always be some pressure drop, no matter how much or little the engine is pulling in as long as some air is moving. A flow bench would show a pressure drop as soon as any air started flowing through the snorkel.
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Hi,
Of course you are correct. I just meant to express that I just think this differential in pressure has little to no effect on overall Volumetric Efficiency which of course is a major determinant in how much power the engine can produce.
I'm not convinced that the Snorkel makes a significant difference, but that aside, I don't think the lister has proven otherwise.
Mrs. MNBoxster is away doing the Accenture Match Play Tourney in Tucson, and I'm having some guys over tonight for a little Boozer. But, I have a neat little engine where I can model AVF, TAF rates and VE, for given engine volumes and parameters. I'll plug in the Boxster data to see what we're looking at. With that, and some measurements of the Snorkel (which I have on a shelf in my garage), we should be able to have something more concrete. But, It will be a day or two.
I'll come back to this in a separate thread. Hope to have your input there...
Happy Motoring!... Jim'99