![]() ![]() When an effectively designed hood scoop is used, outside air is forced into the air intake, air which up to 50☏ cooler than air in the engine compartment. ![]() Cold air is denser and includes a higher percentage of oxygen compared to warm air, resulting in improved engine combustion and added horsepower. As road speeds increase, air speed and pressure increase, providing increasingly greater airflow. The only drawback of a hood scoop is the added exposure to the elements, however, most hood scoops include drain provisions in the air cleaner assembly to prevent water from entering the engine. There are a number of hood scoop variations including raised hood scoops, “shaker” hoods, N.A.C.A. ducts, and cowl induction hoods.Ī wide variety of performance cars have sported raised hood scoops over the years including the Dodge Challenger, Ford Mustang, and Pontiac Trans Am. One method of adding a raised hood scoop is to use an OEM-style fiberglass bolt-on replacement hood from an aftermarket supplier such as Harwood Industries (Tyler, TX). A bit of research is often required for proper fit. For example, any 1998-2002 Pontiac Firebird may be converted to a raised hood scoop by simply installing a 1998-2002 Trans Am hood (Harwood B-20302). Harwood also offers bolt-on hoods with raised scoops for 1993-97 Trans Ams (B-20202) and 2005-2009 Ford Mustangs (B-26608). A high-flow cold air box, available from a variety of sources including K&N and SLP Performance Parts, may be added to maximize the benefits of hood installation. Harwood Ram Air hood for the 1998-2002 Pontiac Firebird/Trans Am features forward facing hood scoops. Large aftermarket-style hood scoops, available through Allstar Performance (Watervliet, MI), Harwood Industries, and K&N Engineering, are effective in funneling cold air into the engine, however, they should be avoided for street-driven applications due to obstructed vision. These types of scoops are designed to be bonded or bolted on to the existing hood. ![]()
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