Quote:
Originally Posted by Xist
Does anyone remember the member who asked about opening the sunroof and back window on his SUV and having the air flow through the cabin. Like Ecky said, we close our grills because airflow is dirty inside the car. Also, Aerohead telling me I created an aerodynamic problem with my grill block by now bell-mouthing my vent.
So, if you are to do this properly and expect positive results, create a system: Do a proper belly pan with NACA ducts leading to the bumper openings, presenting a smooth surface for air the entire way.
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*If you open the sunroof and backlight simultaneously,the air will flow from the back of the car forward to the sunroof opening,bringing exhaust gas with it.
*As to the grille,A shallow,hard-edged opening will only pass 61% of the airflow.A deep,sharp-edged opening will pass only 86% of the flow.With a bell-mouthed opening,she'll flow 98%.This is why I chose the 'turbine inlet' trash can lid for the grille opening on Spirit.
