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Join Date: Jun 2005
Location: El Paso, Tx.
Posts: 80
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Does the math work this way?
I want to lower the height of my air filter cover to provide clearance for a blower fan under the condenser. I calculate the opening in the cover to be approx. 2 1/2 X 3 1/2 inches or 8.75 square inches.
 If I make a solid top that is lowered enough to clear the blower fan, but leave a 1/4" gap around the entire perimeter (6"x12"x6"x12") of 36 linear inches = 9 square inches; is it roughly equivilent? (The air could then enter from around the edges of the cover, and keep the rain out) Thanks dg
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'79 911 SC Last edited by Border911Dude; 08-17-2005 at 08:28 PM.. |
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08-17-2005, 08:25 PM
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Location: Rio Rancho, New Mexico
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It looks to me like the short answer is yes. However why not just remove the entire air filter cover and retain the filter by other means.
A couple straps across the filter will hold it in place. Might make a bit more intake noise. Some racers already do this.
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DOUG '76 911S 2.7, webers, solex cams, JE pistons, '74 exhaust, 23 & 28 torsion bars, 930 calipers & rotors, Hoosiers on 8's & 9's. '85 911 Carrera, stock, just painted, Orient Red |
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08-17-2005, 08:51 PM
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Location: El Paso, Tx.
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I want to protect the filter from rain; wouldn't an un-covered filter during a rain pass water into the intake? (I know it never rains in the Texas or New Mexico... butt just had a downpour tonite!!!)
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'79 911 SC |
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08-17-2005, 09:00 PM
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Location: Portland
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You could build a rain shield that would easily sit lower than the current filter hood. Just a thought. Just make sure you space it away enough it still gets sufficient air flow.
Hope this might help................................C 
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77 930 "P Zilla" 3.2 Litre w / EFI conversion |
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08-17-2005, 10:40 PM
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Location: El Paso, Tx.
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Thanks Gumba11
What I was thinking was to use the lower 2 inches or so of the filter cover (just enough to hold the filter in place), 1/4" or 1/2" gap; then the rain shield as you suggest. Was thinking that that gap would provide the 9 sq. inches of intake. It could be supported at each corner with "posts" to raise it above the filter. Was just wondering if my assumption 36 linear inches @ 1/4" gap was equal to 9 sq. inches was flawed in some way. Thanks, dg
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'79 911 SC |
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08-17-2005, 11:43 PM
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