Vortex Aero Fins for your roof - For Sale

[Sumo Power]

Please see pictures below of Vortex Aero Fins below. They come individually so you can fit 1 or more to your car ( 4 is about right ), they are £20+vat each, some examples of them installed ( also see the Supra on the front cover of Jap Perf. mag this month, it has them installed - if you want to see what they look like on a Supra ):


On our 350Z
http://sumopictures.sumopower.com/1bwebpix/AERO%20FIN.JPG

http://sumopictures.sumopower.com/1bwebpix/AERO%20FIN%20A.JPG

http://sumopictures.sumopower.com/1bwebpix/AERO%20FIN%20B.JPG

http://sumopictures.sumopower.com/1bwebpix/AERO%20FIN%20C.JPG

On an R33 GTR

http://sumopictures.sumopower.com/1bwebpix/AERO%20FIN%20D.JPG

http://sumopictures.sumopower.com/1bwebpix/AERO%20FIN%20E.JPG

On an R32 GTR
http://sumopictures.sumopower.com/1bwebpix/AERO%20FIN%20F.JPG

In stock and available for nextday delivery.

They are stuck on using double sided tape which comes with each fin.

DIY fitment, they come in black only but are paintable if you wanted to match them to your cars colour.

Call us to buy a set on 0871 226 0175

Andy

[RobSheffield]

I think one might be clever, make it look like a new BMW :)

[Ark]

What do they do?

[wallace9]

I think they're used on rally car to give downforce while sliding round bends.
Might be totally wrong though

[RobSheffield]

What do they do?

They stick on your roof.

[Gaz Walker]

They stick on your roof.

:rlol:

[CoolsBlue]

rally, i think so becuase lots of scooby and evos have them fitted...

[michael]

What do they do?

The theory is that they generate vortices that "stick" the air going over the roof to the car which in turn hits the rear spoiler and creates more downforce on cars with a saloon shape.

You can read the Mitsubishi research article on the link below, it's quite interesting:

http://www.mitsubishi-motors.com/corporate/about_us/technology/review/e/pdf/2004/16E_03.pdf

As you can see they went into quite a bit detail on the old vorticity distribution measurements to ensure what they were doing was applicable to the car they were doing it on... something the "stick on" aftermarket market are unlikely to have bothered with in their pursuit of profit.

If you like the look of these I guess it's a suitable way to achieve your (bizarre) goal, if you are buying them because they improve the airflow in the same way as they do on the EVO (and other cars of a similar shape) you need to do a bit more thinking / take your specific car to the wind tunnel.

Personally I think they look w@nk.

Further reading:

http://www.trackpedia.com/blogs/eric/index.php?/archives/25-Vortex-Generators.html
http://autospeed.drive.com.au/A_3058/cms/article.html (Part 1)
http://www.autospeed.com/A_3059/cms/article.html (Part 2)
http://autospeed.drive.com.au/A_3060/cms/article.html (Part 3)
http://autospeed.drive.com.au/cms/A_3061/article.html (Part 4)
http://www.airtab.com

[Clarkey]

I prefer Rob's explanation. :)