Purpose Of A Roof Scoop

I explain the basics of how the airflow works around.

Purpose of a roof scoop.

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. I have no idea what good a roof scoop could do. If the car was a rear engined air cooled engine car like an old vw bug it could be used to force cooling air over the motor. What are roof scoops for.

It cools off an appropriate spot when you start to get hot headed. Hood scoops are for cooling the engine or engine components. This is because there s a negative pressure created by the vacuum bubble behind the trunk. On a rally race car a small roof scoop creates positive pressure in the cabin pushing dust out of window.

This small increase in pressure works wonders to keep out dust and sand from the rally stage. 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. Anyone has idea.

You ve probably noticed that if your car windows are open fresh air gets sucked in.