They are usually manufactured from polyurethane carbon fiber blow molded abs plastic or hand laid fiberglass materials.
Purpose of a roof spoiler.
Roof spoiler is an aerodynamic device that is usually attached to the rear of car s roof.
A rear spoiler is that small piece of trim that usually extends from the edge of the trunk.
Then in return adds an extra 20hp or so to the wheels.
A common spoiler diffuses air by increasing amounts of turbulence flowing over the shape spoiling the laminar flow and providing a cushion for the laminar boundary layer.
The most common function of the spoiler is to reduce the effect of the turbulence created by the airflow.
However it is mostly now done for looks as it is an optional accessory same as the front bumper lip etc.
As its name indicates a spoiler spoils the smooth flow of air over the back of a vehicle.
It gives the very rear of a car a turned up appearance.
It is custom designed to fit the upper window section and installs directly above the glass.
Most of the roof spoilers are custom molded and need no modifications to mount.
Most common spoiler functions include disrupting some type of airflow passing over and around a moving vehicle.
The function of a spoiler varies depending upon the location where the carmakers install it i e.
Well it does help with wind deflection a bit which i heard creates less drag and less stress on the motor.
Which effect it is going to spoil.