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.

It cools off an appropriate spot when you start to get hot headed. This small increase in pressure works wonders to keep out dust and sand from the rally stage. Hood scoops are for cooling the engine or engine components. Any dust floating around the cabin will seriously inpeed the driver s vision and make it much harder for the co d.

This is because there s a negative pressure created by the vacuum bubble behind the trunk. 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. Also on mid engined cars the roof scoop is the air intake. Anyone has idea.

Getting back to aerodynamics today i explain how hood scoops and bonnet vents work for road and track. 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. What are roof scoops for.

I explain the basics of how the airflow works around.