I know it's kinda stupid, but I've never search and try to figure this out yet....

What do those spikes lined up at the end of the MR's roof do?

and

How do you think they look on the EVO?

 

According to the Ralliart EVO MR brochure, this vortex generator was wind tunnel tested at 180km/h.

Vortex Generator Test results (on 180km/h):

Rear downforce: + 2kg = 35% UP
Air Resistance (CD) : 1.1% OFF

 

for extra downforce at high speed.

 

also known as shark fins

 

Thanks guys!

So they are solely for aerodynamics purposes?

I am just curious because I don’t think I’ve seen those before.

Is that a new design? Or have those fins been around in the auto industry for a while already?

 

soley for aerodynamics .. not sure if thats a new design or not..I believe that has been used on Porsche Cups or LeMans.. not exactly sure..

 

Gruppe S should sell shark fins for STis.

 

actually i've seen one on a suby before.. i remember reading bout it with my bf on his message boards..

http://www.wrc.gr.jp/launsport/new-gd/main.jpg

i think they look great on evos.. been trying to get my bf to get one for his evo, but he doesnt feel like coughing up the money for one..

-may

 

I had one on my evo before the MR was even introduced in U.S.. now you can get them at the mitsu dealership for about $200 IIRC.

 

wow, nice pics!

looks like that the fins will direct the air through those slots in the big rear spolier

 

$200 for how many of them?

just line them up however you want and stick them on the roof?

 

IIRC, its one moulded piece...

 

can't wait until the day i see these on hondas
or better yet the srt-4