BRZ STi Wing Gurney Flap - Page 8 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Beyer Subaru · 12-27-2012, 06:36 PM

Bluebatmobile · 01-02-2013, 01:06 AM

Quote:

Originally Posted by DSOmegaX

From further away

Attachment 23682

B@t™

ATL BRZ · 01-02-2013, 02:08 PM

Quote:

Originally Posted by chanomatik

ATL BRZ might be the only one besides switchlanez that hasn't put away their BRZ for the winter that might also have the gurney flap and have had an opportunity to drive at "high speeds" with it. I know ATL BRZ has for sure, so hopefully he'll chime in.

I did track mine at full speed for the first time in early December, but I hadn't done any really high speed driving before installing the flap, so I can't really comment on that with any validity from my own personal experience. I am however certain that it's functional. The same design application is all over the motorsports world.

If you look really closely you can see the vortices coming off the back of the wing from all that downforce pressure squeezing the moisture out of the air...

PRORICAN · 01-02-2013, 04:22 PM

^^^ nice pic!

Beyer Subaru · 01-02-2013, 04:28 PM

Awesome pic!! Thanks for sharing. You really can see those crazy vortices flyin!

86BRZ · 01-03-2013, 03:21 AM

so....installing the Home Depot molding may result in some smaller vortexes?

ZC6BRZ · 01-09-2013, 01:03 AM

Any tips on installing this?

Beyer Subaru · 01-09-2013, 10:25 AM

Not really. I test fitted it a couple of time where I wanted it. Peeled the sticky tape back on the left and right sides. Lined everything up, presssed and then peeled the tape out as I was pressing along. Last I drilled in the holes, dropped in the anchors and applied the sticker.

cantaloupe · 01-25-2013, 04:34 PM

So this thing costs $136 + $80 shipped? Anywhere to get it cheaper?

DSOmegaX · 01-25-2013, 04:43 PM

Nope it has to be imported directly from Japan. Afaik japanparts is the cheapest.

MiniGuy · 01-26-2013, 12:44 AM

Quote:

Originally Posted by DSOmegaX

I added a metal badge to mine. Came out nice.

Attachment 23680

Just wondering where you found the metal badge?

JPxM0Dz · 01-26-2013, 01:43 AM

Quote:

Originally Posted by MiniGuy

Just wondering where you found the metal badge?

You find them all over ebay

Sent from my GT-N7100 using Tapatalk 2

DSOmegaX · 01-26-2013, 02:19 AM

Quote:

Originally Posted by JPxM0Dz

You find them all over ebay

Sent from my GT-N7100 using Tapatalk 2

Yeap. Just search for "STI front lip aluminum badge."

Thanks JPxM0Dz for that btw.

plucas · 03-13-2013, 12:16 AM

Quote:

Originally Posted by JDM-dono

If supposedly air does reach the gurney flap you'll have a higher pressure region above the wing (than without the gurney flap)... In essence it's slightly functional but not to the point that it's measurable improvement in downforce IMO.

EDIT: Think of it as air hitting a brick wall, there'll be high pressure region in front of the wall. By having air hit the gurney flap you'll have high pressure above the wing.

This is not really true. A gurney flap or wicker changes the flow characteristics at the trailing edge. A small vortex (twirling air) forms behind the flap. This helps decrease the boundary layer (layer near the surface with rapidly changing tangential velocity where shear stress is not negligible) on the low pressure side (bottom of airfoil on cars) increasing the effective camber of the wing. This is how the downforce is gained on gurney flaps. It does also increase the high pressure zone at the top of the wing, but not enough to do anything (low pressure side is where all the work is done

)

01-25-2013, 04:43 PM	#108
DSOmegaX Senior Member Join Date: Jul 2012 Drives: '19 M2 Comp, '20 GR Supra Location: Irvine, CA Posts: 1,904 Thanks: 109 Thanked 2,153 Times in 986 Posts Mentioned: 51 Post(s) Tagged: 3 Thread(s)	Nope it has to be imported directly from Japan. Afaik japanparts is the cheapest. __________________ @dsomegax.cars 2013 Subaru BRZ Limited \| WRB \| STI tS Build Thread [SOLD] 2019 BMW M2 Competition \| LBB \| ///M Performance Build Thread 2020 Toyota GR Supra \| Turbulence \| TRD \| Build Thread

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12-27-2012, 06:36 PM	#99
Beyer Subaru Senior Member Join Date: Sep 2012 Drives: 2013 BRZ SWP 6AT Ltd Location: Alexandria, VA. Posts: 1,607 Thanks: 859 Thanked 776 Times in 485 Posts Mentioned: 37 Post(s) Tagged: 1 Thread(s)

01-02-2013, 04:22 PM	#102
PRORICAN Senior Member Join Date: Jun 2012 Drives: BRZ Location: Cape Cod Posts: 804 Thanks: 872 Thanked 560 Times in 258 Posts Mentioned: 27 Post(s) Tagged: 0 Thread(s)	^^^ nice pic!

01-02-2013, 04:28 PM	#103
Beyer Subaru Senior Member Join Date: Sep 2012 Drives: 2013 BRZ SWP 6AT Ltd Location: Alexandria, VA. Posts: 1,607 Thanks: 859 Thanked 776 Times in 485 Posts Mentioned: 37 Post(s) Tagged: 1 Thread(s)	Awesome pic!! Thanks for sharing. You really can see those crazy vortices flyin!

01-03-2013, 03:21 AM	#104
86BRZ Senior Member Join Date: Aug 2012 Drives: BRZ Limited arrived on 9/1/2012 Location: Silicon Valley Posts: 563 Thanks: 312 Thanked 145 Times in 105 Posts Mentioned: 8 Post(s) Tagged: 1 Thread(s)	so....installing the Home Depot molding may result in some smaller vortexes?

01-09-2013, 01:03 AM	#105
ZC6BRZ Wannabe JDM Type S Join Date: Jul 2012 Drives: 2013 BRZ Limited Location: San Francisco Posts: 476 Thanks: 90 Thanked 207 Times in 118 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	Any tips on installing this?

01-09-2013, 10:25 AM	#106
Beyer Subaru Senior Member Join Date: Sep 2012 Drives: 2013 BRZ SWP 6AT Ltd Location: Alexandria, VA. Posts: 1,607 Thanks: 859 Thanked 776 Times in 485 Posts Mentioned: 37 Post(s) Tagged: 1 Thread(s)	Not really. I test fitted it a couple of time where I wanted it. Peeled the sticky tape back on the left and right sides. Lined everything up, presssed and then peeled the tape out as I was pressing along. Last I drilled in the holes, dropped in the anchors and applied the sticker.

01-25-2013, 04:34 PM	#107
cantaloupe Member Join Date: Sep 2012 Drives: brz Location: california Posts: 66 Thanks: 0 Thanked 3 Times in 2 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	So this thing costs $136 + $80 shipped? Anywhere to get it cheaper?

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