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TECH Regular
Joined: Apr 2005
Posts: 415
Likes: 0
From: Bothell, WA
From what I understand the base of the windshield is typically a high pressure location. The original idea behind adding a cowl hood was to have air shoved into a sealed air cleaner housing which gave you not only colder air, but easier to digest air (because of the slight pressure increase). I think NASCAR used to use sealed aircleaners vented directly into the cowling to take advantage of the high pressure, but I could be wrong.
