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The new sponge or foam is better for volume (not avail on the front engine(at least I thought not)) but by the design of it. I would think that it would be not so good at traping the dirt. They also put such a LARGE and THICK basket on the thing that it takes away 30+% of the surface area. The naturally asperated models have more surface area on their filters than the turbo models. I don't know if their is anything we can do about this. Maybe that's why I'm so frustrated. My 1.9 liter diesel has a better flow rate than my plane..........
Formula used:
A=CID X RPM / 20839
360 X 3000 / 20839 = 52 inches
In order for the front air filter to be anywhere near 52 inches of surface it would have to be 4 inches tall! Bottom line. It's imposible to flow enough air through our stock filters.
Last edited by Richard : 10-10-03 at 02:49 AM.
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