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Too big to fail
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Quarter window ventilation theory
Ok, I've been suffering on the track - I need air! I have flush-mount lexan quarter windows. Yeah, I know they sell them with cool louvers in them, but I need a 'today' solution; I'm doing a DE @ Thunderhill tomorrow and another on Friday.
I'm considering drilling a couple of holes in the quarter windows, towards the rear. I have a 2" hole saw that I think would be perfect. Thoughts?
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"You go to the track with the Porsche you have, not the Porsche you wish you had." '03 E46 M3 '57 356A Various VWs |
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08-13-2005, 10:59 AM
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Join Date: Nov 2004
Location: Greater Metropolitan Nimrod, Oregun
Posts: 10,040
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got time to glue a little rear-facing 'shield' over the holes?
like a hood scoop facing backwards you can prob. use acetic acid as an instant glue...
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"A man with his priorities so far out of whack doesn't deserve such a fine automobile." - Ferris Bueller's Day Off |
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08-13-2005, 11:14 AM
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I saw some Mustangs a few weeks ago with about an 18" piece of 3" duct tie wrapped around the mirror. The hose pointed right up to the driver.
John
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1985.5 944 GTS |
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08-13-2005, 11:17 AM
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Join Date: Jul 2002
Location: SC - (Aiken in the 'other' SC)
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Quote:
Ohhhhhh, yeahhhh... Boy did that feel good in the 110° heat. Thank god those vinyl racing seats from the 80s are a thing of the past.
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- "Speed kills! How fast do you want to go?" - anon. - "If More is better then Too Much is just right!!!" - Mad Mac Durgeloh -- Wayne - 87 Carrera coupe -> The pooch. |
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08-13-2005, 11:36 AM
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Location: Long Beach CA, the sewer by the sea.
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You have to ask yourself why the factory made the louvres near the front of the quarter window and up high. You would think that with the door window down, this would be ineffective. Maybe they drove some race cars with the widows up, I'm not sure.
Seems like holes anywhere would help. Of course, a NACA duct in the vent widow would be the ticket. |
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08-13-2005, 12:24 PM
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you watcha, next "new" design in the Auto Show will bring back the front quarter window!
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Kuehl 1987 911 cab, modified https://griffiths.com/ |
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08-13-2005, 04:26 PM
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Location: So. Calif.
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Unless your trunk weatherstripping is doing an outstanding job, air flows into the trunk area and pressurizes it pretty good. If not, some strategically-placed holes will cure that. Next, install a length of SCAT hose into the clock hole and point it at your face or appropriate body part. An inline blower motor can add more volume if desired.
Hope this helps, Sherwood |
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08-13-2005, 11:42 PM
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Location: Encinitas (San Diego CA)
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GREAT ideas! Check out aircraftspruce.com for some really cool NACA ducting products. You'll get some good ideas there about how the airplane guys do theirs. I believe you'd find the scoops and ducting that you need.
Doug
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1971 RSR - interpretation |
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08-14-2005, 05:27 AM
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Driving member
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If you remove the duct work to the vent grill above the front hood you will have air flow. I had mine out for a while to get a problem worked out in my wipers and it was amazing how much air came thru.
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Jerry '86 coupe gone but not forgotten Unlike women, a race car is an inanimate object. Therefore it must, eventually, respond to reason. |
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08-14-2005, 09:44 AM
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Location: the bluest city in the bluest county in the bluest state by the bluest ocean...did I mention the blue skies???
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to bad it's not a 74 or 75...you could just pluck out the "speaker grill" in the middle of the dash & get LOTS of air from that not-so -good trunk "seal"....
when I slam my hood on my 75...the grill often is blown out onto the seat.....or into my NOT amused wife's lap.....
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Greg....PCA, 356 Registry, 912 Registry 1977 911S Targa with 3.2...1960 T-5 coupe 1968 912 coupe, that's 32 P-cars, so far... 1990 Chevy 4x4 2500 pickup (with 255K & still rockin') |
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08-14-2005, 10:13 AM
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1984 Porsche 911 3.2
1986 Porsche carrera coupe 3.2
