Pinched an Evo IX gurney flap on Ebay froma Mitsu dealer for 20 bucks ($118 retail). Shortened 20mm, profiled each end to fit my wing, repainted profiled ends and away we go. Mine is metallic balck. You can get silver too. Just don't pay $118.....

http://img220.imageshack.us/img220/3010/img3081hc0.th.jpg (http://img220.imageshack.us/my.php?image=img3081hc0.jpg)

http://img220.imageshack.us/img220/5963/img3079ty9.th.jpg (http://img220.imageshack.us/my.php?image=img3079ty9.jpg)

http://img220.imageshack.us/img220/4295/img3078vi8.th.jpg (http://img220.imageshack.us/my.php?image=img3078vi8.jpg)

any shots from the back of the whole rear?

Cool, i wonder what it looks like from a distance

Nice idea, looks great

Great idea. Looks good.

By the way, your showing your age with all of those pictures of the old classics on the wall. :D

nice....what does it do?

sorry, looks like balls....

may as well get an aluminium GT wing if you want rice

nice....what does it do?

my thoughts too...

looks good.. .but yeah, does it have a use?

my thoughts too...

looks good.. .but yeah, does it have a use?

Umm... More downforce maybe? For when you're cornering at 190k's.

looks like you glued a wiper blade on.

I like the quality of your work, but I don't see the point.

Looks good and for the price you got it for cant complain... Dont hate on this, Just another mod!

Nice Nice!

look better without the spoiler.

just like a bootlid lip.

whats it made of, im gobsmaked a small piece of rubber/plastic could cost $20 let alone 118 or what ever it was.

it doesnt look out of place on the evo's because it goes hard up against the 2 outter peices of the wing so there is no gaps or you cant see where it ends..

would look semi-ok on a ralliart wing because its the same concept as the evo's wing..

but on that one.. i dont like it.. looks like a piece of scrap rubber just tacked on..

looks like you glued a wiper blade on.
:bowrofl: Thats what i was thinking.

I dunno It's either a spoiler or a lip, not one on top of the other, but get some better shots i guess

but on that one.. i dont like it.. looks like a piece of scrap rubber just tacked on..

Seconded.

looks tacky imo...

very clean, will look much better once u remove that rubber bit.

very clean, will look much better once u remove that rubber bit.

lmfao :bowrofl:

very clean, will look much better once u remove that rubber bit.

Rofl havn't laughed that much in ages.

very clean, will look much better once u remove that rubber bit.
:bowrofl: omg, havent laughed so hard in a long time, thats signature worthy.

very clean, will look much better once u remove that rubber bit.
:stoopid:

**holds breath waiting for the Rell Bull F1 team wind tunnel calculations showing massive improvement in downforce over the bar it's mounted on, which actually generates lift!**

**holds breath waiting for the Rell Bull F1 team wind tunnel calculations showing massive improvement in downforce over the bar it's mounted on, which actually generates lift!**
:bowrofl: HA!

Thanks for the comments guys. Good and bad, I'll take em all.

EZBoy asked a leading question and he knows it :)

As it happens I got my son at Red Bull F1 to do some CFD on the std rear wing. At 140kmh it generates 13kg of lift. That's right - lift, not downforce. Put that down to Mitsu sketchpad aerodynamics. He also CFD it at the same speed with the gurney flap added - 10kg of negative lift ie., positive downforce. Was I looking for a gain? What, are you crazy? It's a bloody Magna road car, not a race car! But it is interesting that such a tiny change can make such a huge differences.

Now. My son designed the shark's fin engine cover on RB4. One of those might help my high speed cornering turn in......lol

Dude, high five, you're a really good sport!

I would've been all like STFU LOL BBQ at everyone.

Clean job you've done! IMO I don't like the look of it, but hey!

Thanks for the comments guys. Good and bad, I'll take em all.

EZBoy asked a leading question and he knows it :)

As it happens I got my son at Red Bull F1 to do some CFD on the std rear wing. At 140kmh it generates 13kg of lift. That's right - lift, not downforce. Put that down to Mitsu sketchpad aerodynamics. He also CFD it at the same speed with the gurney flap added - 10kg of negative lift ie., positive downforce. Was I looking for a gain? What, are you crazy? It's a bloody Magna road car, not a race car! But it is interesting that such a tiny change can make such a huge differences.

Now. My son designed the shark's fin engine cover on RB4. One of those might help my high speed cornering turn in......lol


so in effect, that little piece of rubber generates 23kg of downforce? thats pretty impressive uleh!!

I would've been all like STFU LOL BBQ at everyone.


This thread is just full of WIN!!!!!!! :bowrofl: :bowrofl: Thanks for keeping me entertained at work everyone.

Put up some more pics of the rubber lip. I think it would look better on an Evo wing, yours is too round for it me thinks

*Runs out and glues wiper blade to the top of wagon*
Wow, thats some pretty decent results but.

how many corners will you be tackling at 140kph? I presume a few tracks days it may have it's use

Thanks for the comments guys. Good and bad, I'll take em all.

EZBoy asked a leading question and he knows it :)

As it happens I got my son at Red Bull F1 to do some CFD on the std rear wing. At 140kmh it generates 13kg of lift. That's right - lift, not downforce. Put that down to Mitsu sketchpad aerodynamics. He also CFD it at the same speed with the gurney flap added - 10kg of negative lift ie., positive downforce. Was I looking for a gain? What, are you crazy? It's a bloody Magna road car, not a race car! But it is interesting that such a tiny change can make such a huge differences.

Now. My son designed the shark's fin engine cover on RB4. One of those might help my high speed cornering turn in......lol
Why do you have to be a smartass and actually have it wind tunnel tested :P

I'm confused, why do you want to increase down force on a rear spoiler on a FWD. Personally, I thought you put it on just for looks, because thats all mits had in mind when they designed the standard wings.

if anything, the original spoiler will do a better job of maintaining high speed stability

I've discovered a group buy on http://www.allcorsa.co.uk/forums/showthread.php/group-buy-flat-3061.html.
I figure we could all chip in and split half as we only need one each.

I've discovered a group buy on http://www.allcorsa.co.uk/forums/showthread.php/group-buy-flat-3061.html.
I figure we could all chip in and split half as we only need one each.

haha
took me a while to work out what that was on about!!

how many corners will you be tackling at 140kph? I presume a few tracks days it may have it's use

None at all. Read the thread. I did it for looks. Also read the thread re stability the factory wing provides - NONE. It generates lift. You want real downforce ina Magna wing, get a Ralliart Magna wing.

Track days? Nah. For speed thrills I get my kicks by visiting my son every other year and spending a day at the Red Bull F1 factory and wind tunnel, sitting in Mark Webber's race car and more. Life begins at 360kmh....lol


']Why do you have to be a smartass and actually have it wind tunnel tested :P
Did you think I coughed up all those uni fees for nothing? Gotta be some payback in having kids smarter than yourself :-)


so in effect, that little piece of rubber generates 23kg of downforce? thats pretty impressive uleh!! In 'ideal' conditions. Real world? Probably half that but enough to kill lift.

Tiny numbers compared to the 09 aero pack they are working on for RB5. Even with FIA trimming aero even more next year, they are still counting on in excess of 600kg of downforce. Scary.

None at all. Read the thread. I did it for looks. Also read the thread re stability the factory wing provides - NONE. It generates lift. You want real downforce ina Magna wing, get a Ralliart Magna wing.

Track days? Nah. For speed thrills I get my kicks by visiting my son every other year and spending a day at the Red Bull F1 factory and wind tunnel, sitting in Mark Webber's race car and more. Life begins at 360kmh....lol


Did you think I coughed up all those uni fees for nothing? Gotta be some payback in having kids smarter than yourself :-)

In 'ideal' conditions. Real world? Probably half that but enough to kill neg lift.

Tiny numbers compared to the 09 aero pack they are working on for RB5. Even with FIA trimming aero even more next year, they are still counting on in excess of 600kg of downforce. Scary.

Surely having downforce over the read wheels in a (relatively) powerful FWD sedan isn't desired then? I can imagine having positive downforce at the rear end would only make the front wheels lighter at speed. Certainly not ideal in poor conditions...

Now. My son designed the shark's fin engine cover on RB4. One of those might help my high speed cornering turn in......lol

That is sofa king awesome that your son has anything to do with F1 cars, Id love to be in his shoes anyday of the week.

Renault designed the shark fin, Red Bull copied it. :)

Also the shark fin doesnt actually assist downforce itself, it provides cleaner air to the rear wing which provides the downforce so Im not 100% whether it would assist cornering, but a) who cares it was a joke and b) your son would know better than I would about the benefits.

surely llift over the rear wheels is a good thing in a FWD anyway

So we should get rid of the spoilers on AWDs? (or put the wiper blades on)

Because it would be good to have downforce on the rear of them and they can go around a corner at about 140kph lol...

surely llift over the rear wheels is a good thing in a FWD anyway

you still want some downforce. You dont want to be fangin into a corner at 140 and have the back end break away. You would want equal or more pressure on the front i assume to assist with high speed turn in........i think:confused:

That is sofa king awesome that your son has anything to do with F1 cars, Id love to be in his shoes anyday of the week.

Renault designed the shark fin, Red Bull copied it. :)

Also the shark fin doesnt actually assist downforce itself, it provides cleaner air to the rear wing which provides the downforce so Im not 100% whether it would assist cornering, but a) who cares it was a joke and b) your son would know better than I would about the benefits.

Oooooh yeah. I could talk F1 all day :)

No, Red Bull did the shark fin first I assure you. Stephen signed off the design this time last year and they had it on and were testing it at Barcelona 3 full months ahead of Renault.


Yeah, I heard Damon Hill talk last night about the fin providing 'cleaner air to the rear wing'. He has it wrong. What Stephen was looking to do (and what the fin does) is 'control yaw on turn in' (his words, not mine). So the idea is to provide more stability on turn-in to a corner, which is the point at which the rear wing functions less than ideally (and when you are most heavily relying on downforce from the undertray, which itself becomes unstable the minute the guys run over a curb).

To those of you questioning whether you want more downforce on the rear of an FWD car, think of it this way - it's not about which end of the car is driven, it's about getting the whole chassis better glued to the road to better benefit from what the suspension and tyres can give you in the way of mechanical grip. A real good example are the BTCC cars, all of which are FWD but have enormous rear wings and front splitters to get the aero balance set right across the chassis.

Mind you, even the best get it wrong. Three years ago Bugatti came to RBR and got them to run the Veyron through their half scale Bedford wind tunnel. Y'know that huge rear pop-up wing on the Veyron? It creates downforce alright. But it also makes the car hugely unstable at ultra high speed. And that's part of the reason why the wing drops for top speed runs - some of it to minimise drag, but most of it to restore stability to the chassis so it doesn't become undriveable. Stephen reckoned the instability was frightening and that all the RB aero engineers were telling bugatti to go back to the drawing board from scratch. And another good story on that. When Bugatti left the car with RBR, they locked it and took away the keys. RBR had to smash a window to get into it....

you still want some downforce. You dont want to be fangin into a corner at 140 and have the back end break away. You would want equal or more pressure on the front i assume to assist with high speed turn in........i think:confused:

Reckon my tail can tend to slide out under acceleration in 2nd. Also definately would do it at higher speeds.

You do want to end with pretty much equal pressure to the front, and its this pressure gradient which is the important thing. If it's too steep the air flow will seperate prematurely causing excess pressure drag (which is the big one ~7x: other is skin friction).

In terms of a wing it's a direct quote from my lecture notes "for flow over a wing, if separation occurs, lift is lost" so in terms of downforce i guess that means you want separation to occur where the wing ends like the sudden change in shape causing a pressure spike like on the sporting car's wings.

In regards to the centre fin/rear wing i'd say they were looking to keep the boundary layer consistant to the wing through a corner. Love to chat to your son aout such things.

This convo helps me study, CFD is computational flow dynamics ie a program which means you can theorize before you build your model and tunnel test it. Get to do it next semester and i plan to be awesome at it so i can get an awesome job.

Ps Scnell i email red bull and they havent replied... at least i know studying CFD is the right track.

Ps Scnell i email red bull and they havent replied... at least i know studying CFD is the right track.
Write a paper letter to them. That way they have to answer. They get thousands of emails, so replying can be a problem. Also address your letter directly to Adrian Newey. That will guartanee you of getting a reply. Stay in touch. The next time Stephen is in Oz I'll put you in touch with him

i love you