Purpose Of A Roof Scoop

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

Purpose of a roof scoop.

You ve probably noticed that if your car windows are open fresh air gets sucked in. The main reason for having a roof scoop on a rally car is to actually pressurise the interior of the car slightly. What are roof scoops for. It cools off an appropriate spot when you start to get hot headed.

I explain the basics of how the airflow works around. Anyone has idea. 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. Hood scoops are for cooling the engine or engine components.

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. On a rally race car a small roof scoop creates positive pressure in the cabin pushing dust out of window. Getting back to aerodynamics today i explain how hood scoops and bonnet vents work for road and track. I have no idea what good a roof scoop could do.

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.