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Old 09-18-2021, 03:32 PM   #1
pazzoduc
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06 WRX TD Swapped
sorta black-ish

Default AERO - GD Rear Wing Suggestions

Had planned on getting the 9-lives/Flat Irons Tuning Wing Kit, but they sold out and are not going to re-stock.

So now I'm on the hunt. Any suggestions? Looking for performance not style.

Car is GD body, Silvers Coilovers, ALK, Roll Center Kit, Bars, 9.5" Wheels running 200TW, STI Brembos. More HP/TQ than needed, LOL.


At same time will install brake ducts, front splitter and hood vents. Car has side skirts but no under trays and no rear splitter. (can't find them locally).


9 lives makes an in-house kit, just wondering if there are other valid options out there.


Currently learning the car without Aero/wing. After I get enough seat time want to move to next step, so looking to start collecting parts.....
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Old 09-18-2021, 04:27 PM   #2
pazzoduc
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Possible options:


https://www.kognitiondesign.com/prod...-wrx-sti-03-07


https://ajhartmanaero.com/custom-wings/


https://9livesracing.com/collections...g-kit-00-07-gd


https://www.rallysportdirect.com/par...bon-fiber-wing


[url] http://cirodesignracing.com/[url]


With the 9lives set-up can later add a gurney flap and or second element.


Others?

Last edited by pazzoduc; 09-18-2021 at 04:35 PM.
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Old 09-19-2021, 11:56 AM   #3
RyanC
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I just added the 9lives Wang to my '05; it's still getting aligned so no first hand feedback yet other than on the drive to the alignment shop, I had great vis out the back. The wing element was not visible at all in the rearview.

It's the 68in version; install wasn't too tough although it doesn't come with any instructions or templates, and measuring/fitting/etc was tough single-handed. Much better to have 2 people on the task. The price was good, although it seemed rushed as the wing was full of aluminum chips, and the holes for the end plates have metal on about 80% of the perimeter. Maybe he drilled them off by a half-mm?

Lots of folks in my club use their wangs on Mitae and BMWs, and have been happy with the performance.

For me, the lack of an pre-made front splitter has been a bummer. I wound up adapting some splitter brackets from my Civic and making a prototype out of alumalite. It extends about 2 3/4 in from the front bumper, full width to the front of the wheel well, and then it's 24in wide back to the skid plate. I was hoping to test at the Glen last week, but the alignment issues I ran into left me without the car. I'll have it on track at Loudon in a few weeks and can share feedback then.
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Old 09-19-2021, 08:47 PM   #4
speedyHAM
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Here's my take- the Kognition is an old school basic wing. Not very efficient, but a good wing none the less. Good mounting through the quarter panels as mounting to the trunk is never smart for a real wing.

AJ Hartman Aero Apex wings are a more efficient, more modern design- and the cost is reflective of it. Fulcrum is very similar to the Kognition wing.

Nine Lives Racing- Similar to the Fulcrum and Kognition, but much cheaper. The airfoil shape is likely less efficient, but I can't tell based on the websites. Will still create substantial downforce, just at higher levels of drag.

APR GTC-300- This is a highly developed wing shape and probably as efficient as the Apex designs overall(Swan neck mounting, vs variable cross section). Between this and the Apex-8, I'd probably go with the Apex-8 for track use, the ARP for Auto-X use. The difference is in the average speed through corners.

There is no info on the Ciro racing page, although to be honest- I have a Ciro racing dual element wing on my car so I won't say they are bad.

Really it depends on what you are using the car for and what complimentary front aero devices you will add at the same time. Any wing can have a gurny flap added to it, it's just a matter of some angle material and double sided tape (that is how my gurney flap is attached). Let me know what type of racing you are doing and I can help with how to balance your aero.
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Old 09-19-2021, 11:25 PM   #5
subydude
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Ciro or Zebulon.
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Old 09-20-2021, 10:19 AM   #6
BlackFighter
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I'm in the process of building a 05 STi track car and have the APR GTC-300 Carbon Fiber Wing with Singluar end plates that are waiting for me to install it.

http://www.singularmotorsports.com/p...r-gtc-300-500/

One problem I have with the APR is that it does not mount to the chassis. But the more i look at the location of the install, its right on the edge of the trunk where there is good downward pressure from the trunk to chassis, but we'll see.

Last edited by BlackFighter; 09-20-2021 at 12:10 PM.
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Old 09-20-2021, 01:25 PM   #7
Thorium06
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What exactly are you building the car for? Any specific class?

If the goal is just to have a wing, then the 9 lives will suit it, but there are far superior designs out there that will give you better results. I personally have a Zebulon wing on my 05 that is designed to be both a dual and single element.

Also, there is nothing inherently wrong with trunk mounting if you mount it in a way to get rid of the flex in the lid. Most that have issues have an airfoil that produces ridiculous dragforce. Trunk mounting typically yields a lighter solution as well.
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Old 09-20-2021, 02:46 PM   #8
pazzoduc
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Good info so far guys.
I'm working my way up through HPDE and may elect to do some time trial. Likely NASA. Maybe SCCA. I have no delusions of grandeur and know I won't be competitive. So I'm ok if I break a rule or two, no one will care and I have no problem conceding if they do. That said I don't want to do something too far out of the ordinary, that usually doesn't end well.


Also of thought, my son may choose to take over the car in a couple of years, he is far more likely to get involved in class racing. So guidance there is appreciated as well.. No class picked. Already the car has classing issues. Particularly with straight jacket SCCA.


Known class issues: Front subframes removed. Oswald front and rear beams. Wheel width? 9.5". Hood vents will be going in at same time as wing, splitter.
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Old 09-20-2021, 05:33 PM   #9
Thorium06
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Quote:
Originally Posted by speedyHAM View Post
Here's my take- the Kognition is an old school basic wing. Not very efficient, but a good wing none the less. Good mounting through the quarter panels as mounting to the trunk is never smart for a real wing.

AJ Hartman Aero Apex wings are a more efficient, more modern design- and the cost is reflective of it. Fulcrum is very similar to the Kognition wing.

Nine Lives Racing- Similar to the Fulcrum and Kognition, but much cheaper. The airfoil shape is likely less efficient, but I can't tell based on the websites. Will still create substantial downforce, just at higher levels of drag.

APR GTC-300- This is a highly developed wing shape and probably as efficient as the Apex designs overall(Swan neck mounting, vs variable cross section). Between this and the Apex-8, I'd probably go with the Apex-8 for track use, the ARP for Auto-X use. The difference is in the average speed through corners.

There is no info on the Ciro racing page, although to be honest- I have a Ciro racing dual element wing on my car so I won't say they are bad.

Really it depends on what you are using the car for and what complimentary front aero devices you will add at the same time. Any wing can have a gurny flap added to it, it's just a matter of some angle material and double sided tape (that is how my gurney flap is attached). Let me know what type of racing you are doing and I can help with how to balance your aero.
This isn't entirely accurate from my understanding.

The Kognition isn't old, it just has far too much camber which results in flow separation which is the route of its inefficiency.

The AJH profile is the best of the bunch you've listed.

The 9 lives is not similar to to the others, this is an older elan profile and are very small in comparison which leads to both significantly less downforce and drag compared to others.

The GTC300 while it looks really cool, the 3d profile of it provides angles of attack that are far too high, and the shape does not match most cars flow fields.

The GT250/1000 is APRs best profile and actually the basis for which Ciro uses for their offerings.
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