Spoiler/wing downforce

Stiger · 03-13-2003, 12:24 AM

Does anyone know the difference between the downforce generating by the STi wing and the WRX spoiler? Also, are there any aftermarket carbon fiber deck lids for the WRX with a more subdued but still functional lip spoiler? If not, I may see about having something like this fabricated. I'd like the functionality of the downforce from the STi wing but would prefer not to have some as obvious as the wing nor the sense of something in my rear visual field and the WRX spoiler just doesn't do it for me.

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robmarch · 03-13-2003, 08:34 AM

before you get flamed...check out the big wing SOA please read thread. Plenty of relevant info, speculation, and opinion, but no hard numbers. oh, and plenty of flaming.

Good luck

briank · 03-13-2003, 08:57 AM

Yeah, like Rob said. There was a huge ugly thread about downforce. But the short answer to your questions is: No one knows what the downforce of the wing on either car is.

-BrianK

Corn-Picker · 03-13-2003, 09:33 AM

I've always thought the WRX spoiler was something that decreases lift at higher speeds, not something that creates downforce. You know, just to keep the ass-end from getting to drift happy at higher speeds.

The STi wing should produce downforce, but I have no idea how much or at what speeds.

jaypride · 03-13-2003, 10:21 AM

The wing decreases lift by applying downforce.

Corn-Picker · 03-13-2003, 03:21 PM

Quote:

Originally posted by jaypride
The wing decreases lift by applying downforce.

Not necessarily. Eliminating lift and creating downforce are two different things. Eliminating lift can be accomplished by simply changing the airflow pattern over the rear of the car. That would eliminate lift, but not create any downforce.

JC · 03-13-2003, 03:40 PM

Quote:

Originally posted by briank
Yeah, like Rob said. There was a huge ugly thread about downforce. But the short answer to your questions is: No one knows what the downforce of the wing on either car is.

-BrianK

OH NO NOT AGAIN.

If you look at the huge thread there IS wind tunnel data for the regular WRX wing. Nothing for the new wing though. I'm not getting involved in another flame war here...

JC

merlot · 03-13-2003, 04:10 PM

Quote:

If you look at the huge thread there IS wind tunnel data for the regular WRX wing.

Yes, I remember at above 80mph, it created some downforce in the back, and created a bit of lift up front. The numbers I do not remember. Oh, and induced no additional drag compared to wingless WRX.

MSD

ANZAC_1915 · 03-14-2003, 03:23 AM

The STi spoiler is different to the Prodrive one, therefore the numbers you posted are not relevant except as comparison when we get some public info on the 04 STi aerodynamics.

I am confident the STi spoiler generates "big" downforce.

03-13-2003, 12:24 AM	#1
Stiger Scooby Newbie Member#: 32949 Join Date: Feb 2003 Vehicle: 2004 STi Silver/silver	Spoiler/wing downforce Does anyone know the difference between the downforce generating by the STi wing and the WRX spoiler? Also, are there any aftermarket carbon fiber deck lids for the WRX with a more subdued but still functional lip spoiler? If not, I may see about having something like this fabricated. I'd like the functionality of the downforce from the STi wing but would prefer not to have some as obvious as the wing nor the sense of something in my rear visual field and the WRX spoiler just doesn't do it for me. * Registered users of the site do not see these ads.

03-14-2003, 03:23 AM	#9
ANZAC_1915 Moderator Member#: 456 Join Date: Oct 1999 Chapter/Region: NWIC Location: Redmond, WA, USA Vehicle: 2008 Forester XT Steel Gray Metallic	The STi spoiler is different to the Prodrive one, therefore the numbers you posted are not relevant except as comparison when we get some public info on the 04 STi aerodynamics. I am confident the STi spoiler generates "big" downforce. Last edited by ANZAC_1915; 03-14-2003 at 03:44 AM.

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03-13-2003, 08:34 AM	#2
robmarch Scooby Specialist Member#: 18713 Join Date: May 2002 Chapter/Region: MAIC Location: Time is the Enemy Vehicle: 06 CRV 04 STi	before you get flamed...check out the big wing SOA please read thread. Plenty of relevant info, speculation, and opinion, but no hard numbers. oh, and plenty of flaming. Good luck

03-13-2003, 08:57 AM	#3
briank Scooby Specialist Member#: 3568 Join Date: Jan 2001 Chapter/Region: NESIC Location: Worcester, MA Vehicle: 2002 WRX EcuTek Black	Yeah, like Rob said. There was a huge ugly thread about downforce. But the short answer to your questions is: No one knows what the downforce of the wing on either car is. -BrianK

03-13-2003, 09:33 AM	#4
Corn-Picker Scooby Specialist Member#: 8679 Join Date: Jul 2001 Location: Morgantown, WV Vehicle: 2010 The most hated vehicle on the internets	I've always thought the WRX spoiler was something that decreases lift at higher speeds, not something that creates downforce. You know, just to keep the ass-end from getting to drift happy at higher speeds. The STi wing should produce downforce, but I have no idea how much or at what speeds.

03-13-2003, 10:21 AM	#5
jaypride Scooby Specialist Member#: 33424 Join Date: Feb 2003 Chapter/Region: NESIC Location: WMIC Vehicle: 2004 STI Blue/Gold	The wing decreases lift by applying downforce.