Quote:
Originally Posted by olddog
The cold air is more important than the ram affect. 77 F air vesres 140 F air is 12% more dense. If you can get 12% more air into the engine you can burn 12% more fuel, and make 12% more power. The best hood scoop in the world is not going gain you 5% air density at highway speeds.
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The Coyote design actually allows you to bring cooler air to the engine, just duct air from anywhere.
The XKE hoods were slotted to allow warmer underhood air to vent out, and because they were angled back, at speed the airflow out would increase with speed.
Personally I think hood scoops are for poseurs.