TRANSLATION:

Mine is bigger.

No mine is bigger!

No, MINE is bigger!!

 

it shifts the downforce peak up in the velocity curve.

 

rmr makes one

 

all this talk between you two and i don't know if you guys actually know what a gurney flap does... do you?

it's a device used to speed up the trailling edge air so that it rejoins the underflow (lift flow, or in this case downforce flow) better. it reduces drag while maintaining downforce generation because at certain critical angles of attack you get wing stall, flow seperation and that causes drag.

the gurney does in fact produce downforce of its own... but it's not significant and it is all drag induced downforce, not pressure differential induced.

there is actually two other ways to accomplish the same thing. one is to create a wing with a aerofoil shape and another way is to have a dual stacked wing where one feeds air into the other. both these mothods are better htan a gurney flap.

 

http://www.allamericanracers.com/gurney_flap.html

http://www.insideracingtechnology.com/tech104gurney.htm

**** i gotta do everything around here.

 

HAHHAHAA

Actually it wasn't a pissing contest. It was more of a getting to know one another. I like talking to mechanical engineers because they are very knowledgeable in their craft. I always learn new and exciting things from them that make me be a better person.

 

check out MITSUBISHI EVOLUTION REAR SPOILER EXTENSION, by jimfeltsmitsubishi on ebay. Thats where i got mine. 79.99, much cheaper than the dealer. Jim felts is a dealer, that wholesales

 

trinydex,

Thank you for your contribution. An important aspect of this situation to consider is that the Evo wing is not sitting in direct airflow. The air hits the wing after falling off the roof which creates turbulence and increases the rear wing's angle of attack. A vortex generator helps to reduce turbulence by pulling the air down the rear windshield and will therefore alter the effect of the flap (I know you may already know this, but I'm adding it for those that don't).

And of course the flap will produce some additional drag, but it is drag that includes a positive effect: reduced lift. This is much better than the drag caused by the parachute effect of the rear bumper. For those Evo owners that drive their cars on road courses, the flap may provide slightly more rear end stability on high speed turns. Will it be noticable? I suppose it depends on how sensitive the driver is to changes, but most likely it won't be. I don't, however, think this item would be a poor purchase for someone that does track days or likes the look.

-Paul

 

I guess someone has their conceited suit on today.

 

i pimp that **** er' day of the week, i'm rick james, enjoy yoself

 

CF hoods are three pounds heavier then our stock aluminum hoods so why go Carbon Fiber. Its lame...

 

because only cheap asses like you think of cf as the wet lay "for looks" stuff

 

Wait a minute, Im cheap because I dont want to spend 350+ to buy a hood the is going to make my car heavier. I would rather invest that money in to my motor. Sorry Im not cheap

 

Actually, what he said (but didn't say too nicely) was that the cheaper wet carbon is heavier, but dry carbon is lighter. Most people don't want to spend the money on dry carbon and don't like the looks of it, but it is lighter than the stock hood. $350 won't get you anywhere near a dry carbon hood.

-Paul

 

funny thread, the posted subejct was merely a question if they old them in the US, with additonal content that states they may actually be functional. And here comes another post that totally doesn't answer that question...

Building cars isn't anything like the aeronautical industry. Engineers in the automtive field constantly have marketing on their backs telling them what not to do. There's a bigger picture that you fresh outta college engineers and designers will just plain not know about until you gain experience. Trust me, I was there, and I still laugh at the crappy things I'm forced to do due to marketing.