Quote:
Originally Posted by 2011 Nismo#91
... In general this is the airflow for all cars. The front of the hood is low pressure, as you get to the read the pressure increases because of the windshield. ...
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This is exactly why most hood scoops for combustion air toward the front of the hood don't any good and can actually reduce performance. A good hood scoop is either tall enough to get into higher-pressure air (which causes a lot of drag and hinders vision) or located near the base of the windshield (and facing rearward). Front vents work better for pulling hot air out of the engine compartment.
A picture (or two) is worth a thousand words.