Quote:
Originally Posted by choi0706
how effective would it be to just have larger naca ducts without the large vent in the front?
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I'm guessing that it'd be even worse than no ducts at all, since there'd be no where for the air to flow out. The NACA ducts might add positive pressure to the engine compartment; reducing the airflow through the radiator. IMHO, the vent is the most important part of this hood. As I understand it, the vent allows hot air to exit the engine compartment and also creates negative pressure, which draws more air through the radiator than no vent at all. The NACA ducts are secondary to that.