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Old 03-04-2012, 12:50 PM   #6 (permalink)
drmiller100
Master EcoModder
 
Join Date: Dec 2011
Location: Boise Idaho
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swirl is vastly overrated. real world says air goes in on the downstroke, and so what if it swirls - it gets squished 10:1 on the compressoin stroke and the swirl all goes away.
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