Performance Machine/Roland Sands air cleaner flow rate?
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Outstanding HDF Member
Joined: Oct 2007
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Yes I know that but that is not what I am asking. I want to know how they compare to each other. Does the RSD or PM flow as well or better then the SE stage 1 air cleaner. thanks
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Joined: Jan 2009
Posts: 739
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From: St. Louis
If they are all K&N filters (I'm not familiar with all three) K&N has a formula on their website for figuring flow numbers for their filters. Basically, the one with the largest filtering area will flow the most.
http://www.knfilters.com/filter_facts.htm click on "Racing" or use the formula below.
Use the formula below to compute the minimum size filter required for your particular application. The usable portion of the filter is called the EFFECTIVE FILTERING AREA which is determined by multiplying the diameter of the filter times Pi (3.1416) times the height of the air filter in inches, then subtracting .75-inch. We subtract .75-inch to compensate for the rubber seals on each end of the element and the filter material near them since very little air flows through this area.
A = effective filtering area
CID = cubic inch displacement
RPM = revolutions per minute at maximum power
Example: A 350 CID Chevy engine with a horsepower peak at 5,500 rpm.
http://www.knfilters.com/filter_facts.htm click on "Racing" or use the formula below.
Use the formula below to compute the minimum size filter required for your particular application. The usable portion of the filter is called the EFFECTIVE FILTERING AREA which is determined by multiplying the diameter of the filter times Pi (3.1416) times the height of the air filter in inches, then subtracting .75-inch. We subtract .75-inch to compensate for the rubber seals on each end of the element and the filter material near them since very little air flows through this area.
CID = cubic inch displacement
RPM = revolutions per minute at maximum power
Example: A 350 CID Chevy engine with a horsepower peak at 5,500 rpm.
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