07-20-2013, 09:30 AM
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#11 (permalink)
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A True Z Fanatic
Join Date: Feb 2011
Location: Sterling, VA
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Quote:
Originally Posted by wstar
Has anyone (DIY or commercial) actually analyzed the pressure and airflow situation to figure out the best location and flow direction for vents? There should be good pressure under there from the radiator outflow, it's just a question of where the best place to exhaust it is. Are the GTR-style NACA ducts intended to draw air out and forward via the airflow that likely reverses at the base of the windshield? The CarbonSignal vents (rearward flowing up the sides) could work, too, but it would just be nice to see some real pressure/flow proof.
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No, we haven't and we should. Behind the radiator is probably the highest pressure area that we want to release. Above the headers is the hottest area but there isn't much airflow going up from there. Vents won't do a whole lot to cool the intake tubes, but the hot metal everyone with G3s runs robs power.
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