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.