Purpose Of A Roof Scoop

On a rally race car a small roof scoop creates positive pressure in the cabin pushing dust out of window.

Purpose of a roof scoop.

So a car that has the engine in the front the purpose of the roof scoop is merely for looks. Also on mid engined cars the roof scoop is the air intake. This small increase in pressure works wonders to keep out dust and sand from the rally stage. A bonnet hood scoop sometimes called bonnet airdam air dam is an upraised component on the hood of a motor vehicle that either allows a flow of air to directly enter the engine compartment or appears to do so.

Deep 6 rally team merch and also random car sticker. Just a quick video on how i installed my roof scoop and vent on my 2004 subaru sti thanks for watching. Hood scoops are for cooling the engine or engine components. The main reason for having a roof scoop on a rally car is to actually pressurise the interior of the car slightly.

The only other reasons for a roof scoop are to cool rear mounted heat exchangers radiators or to provide intake air for a rear or mid mounted engine. This is how i installed a primitive racing roof scoop and roof vent on my bmw 318ti e36 rally car. In almost every case a large naca duct will provide more than sufficient airflow without increasing drag raising the boundary air thickness or causing turbulent airflow. Re read what i said its for the passenger area of the car.

You ve probably noticed that if your car windows are open fresh air gets sucked in. This is because there s a negative pressure created by the vacuum bubble behind the trunk. It has only one opening and is closed on all other sides. What are roof scoops for.