Scoop measures approx 19 x 17 and 3 5 tall.
Rally roof scoop functional.
Yes the roof scoop will give some air flow in the cabin however there are far more efficient and aerodynamic ways of doing so.
C sainz l moya toyota celica t165 rally acropolis 1990 1st.
Aka the wizard.
Just a quick video on how i installed my roof scoop and vent on my 2004 subaru sti thanks for watching.
With time roof scoop design improved turning into a flat thin opening.
They got it over seas at a rally race supplier.
It was also real carbon fiber.
Deep 6 rally team merch and also random car sticker.
I have read the answers below and they only tell half the story.
Internal directional air vents two stage foam filter system to reduce dust.
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Joined sep 7 2005 8 950 posts.
Opening in front is about 13 wide.
Functional rally roof scoop.
The scoop on the roof was absolutely functional it even had a little crank on the inside to turn the air flow on and off.
Wide mouth helps to feed air to your roof vent but a small air escape in the back of the scoop reduces noise and lift when roof vent is closed.
I learned that the roof scoop on rally cars is used to help cool the cars.
Roof scoops became usual in any rally car allowing to generate some curious images such as the one below from carlos sainz first win where head lamps and roof scoops seem to play in parallel.
If this was the real reason then every track race car.
But if you re just after that snappy rally car look install the scoop by itself without cutting a hole in the roof.
Theres a site geared mostly to sti s and other subies that happens to sell.