Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   Pelican Parts Forums > 1- Porsche Technical Forums > Porsche Autocross and Track Racing


Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Registered User
 
DHE11's Avatar
 
Join Date: Apr 2012
Location: Sydney / Adelaide Australia
Posts: 248
Garage
Rear wing options and feedback

Looking at rear wing options....
General straight wing, low drag that is good for upto 160mph to go on a 3.6 early 911 track car.

Anyone have any feedback or experience with the GT-250 wings from APR performance?

I understand the Brooke’s wings are no longer available and some questions around the GT predators camber profile that are not substantiated either way.
__________________
77’ 911 Karminrot

Build Thread:
http://forums.pelicanparts.com/porsche-911-technical-forum/985164-project-77-new-build.html
Old 05-21-2018, 09:48 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
Registered User
 
Cory M's Avatar
 
Join Date: Oct 2004
Location: San Diego
Posts: 3,556
Lots of guys with Japanese import cars like the APR wings. I haven't seen many on 911's but I think that's mostly due to them not offering a "plug and play" kit.
Old 05-30-2018, 02:09 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)
Registered User
 
DHE11's Avatar
 
Join Date: Apr 2012
Location: Sydney / Adelaide Australia
Posts: 248
Garage
Thanks Cory,
From what I can see a lot of work and design behind the APR wings, also look to be finished very well and lots of adjustability build in to the hardware. While no 911 set ups it’s pretty easy to make some uprights so I’m not put offf by that.

Currently one supplier selling them a with a few hundred dollar discount so thinking that their GT250 wing look to be best value for money available right now.
__________________
77’ 911 Karminrot

Build Thread:
http://forums.pelicanparts.com/porsche-911-technical-forum/985164-project-77-new-build.html
Old 05-30-2018, 02:56 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #3 (permalink)
Administrator
 
Eric at Pelican Parts's Avatar
 
Join Date: Jan 2015
Location: CA
Posts: 569
Darien, I just came across this thread, so I rang my old friend at APR.

Super short talk as he's getting off work, but the GT250 is definitely more period correct, camber profiling is neutral, so it won't incur a lot of drag. I'm pretty sure I heard correctly, with a L/D ratio of 8:1. Wing measurement is custom, and you can choose a span from 60" to 71". They don't have any uprights available, so it will have to be custom fabbed, but that's pretty easy to get done.


Although it's not the same wing, he texted me photos of some custom fabbed uprights of 911's. Here's one of them:



Let me know if you have any specific questions and I can forward them over to him!
__________________
17 Macan GTS
97 240SX
94 Land Cruiser
Too many Miata's to count.
Old 06-01-2018, 04:27 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #4 (permalink)
Registered User
 
DHE11's Avatar
 
Join Date: Apr 2012
Location: Sydney / Adelaide Australia
Posts: 248
Garage
Thanks Eric,
Appreciate the info and the picture, agree uprights look pretty easy to adapt to their attach points. Their wings are finished really well and attach brackets and end plates are fully adjustable.

Initially I didn’t find much info on their wings fitted to old 911, but I have been in contact with APR by phone and email and they were keen to help. Have lots of info available on their website.

Going with the GT-250 in 71” which will be right on the limit of rear track width regulations to suit my car (widebody 77’ 911)
Have a banana already , but this is a lot bigger wing and should be much more efficient in lift/drag ratio, and I prefer the straight wing look...


__________________
77’ 911 Karminrot

Build Thread:
http://forums.pelicanparts.com/porsche-911-technical-forum/985164-project-77-new-build.html
Old 06-01-2018, 05:52 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #5 (permalink)
Administrator
 
Eric at Pelican Parts's Avatar
 
Join Date: Jan 2015
Location: CA
Posts: 569
Not a problem at all! I think my friend said Casey or someone was helping you on your quest for information. I showed him a picture of your car and he knew it already, haha. He did tell me you're in good hands!

Quote:
Originally Posted by DHE11 View Post
Thanks Eric,
Appreciate the info and the picture, agree uprights look pretty easy to adapt to their attach points. Their wings are finished really well and attach brackets and end plates are fully adjustable.

Initially I didn’t find much info on their wings fitted to old 911, but I have been in contact with APR by phone and email and they were keen to help. Have lots of info available on their website.

Going with the GT-250 in 71” which will be right on the limit of rear track width regulations to suit my car (widebody 77’ 911)
Have a banana already , but this is a lot bigger wing and should be much more efficient in lift/drag ratio, and I prefer the straight wing look...
__________________
17 Macan GTS
97 240SX
94 Land Cruiser
Too many Miata's to count.
Old 06-04-2018, 01:44 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #6 (permalink)
Registered User
 
DHE11's Avatar
 
Join Date: Apr 2012
Location: Sydney / Adelaide Australia
Posts: 248
Garage
Quote:
Originally Posted by Eric at Pelican Parts View Post
Not a problem at all! I think my friend said Casey or someone was helping you on your quest for information. I showed him a picture of your car and he knew it already, haha. He did tell me you're in good hands!
Yes, been talking with KC...
Sent the attach bracket measurements yesterday, so wing can now start being built!
__________________
77’ 911 Karminrot

Build Thread:
http://forums.pelicanparts.com/porsche-911-technical-forum/985164-project-77-new-build.html
Old 06-06-2018, 03:07 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #7 (permalink)
Registered User
 
3rd_gear_Ted's Avatar
 
Join Date: Oct 2007
Location: SoCal
Posts: 484
Garage
So as to understand the chart, does it say:
Zero angle of attack with what looks like about a 3/4" Gurney flap on the wing gets a 100 lbs of downforce @ 120 mph???
__________________
1980 911SC
Fiberglass Turbo Flares F&R with a 3.6L conversion

869#
AKA "Gemma"
Old 06-06-2018, 07:50 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #8 (permalink)
Registered User
 
DHE11's Avatar
 
Join Date: Apr 2012
Location: Sydney / Adelaide Australia
Posts: 248
Garage
Quote:
Originally Posted by 3rd_gear_Ted View Post
So as to understand the chart, does it say:
Zero angle of attack with what looks like about a 3/4" Gurney flap on the wing gets a 100 lbs of downforce @ 120 mph???
__________________
77’ 911 Karminrot

Build Thread:
http://forums.pelicanparts.com/porsche-911-technical-forum/985164-project-77-new-build.html
Old 06-07-2018, 02:06 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #9 (permalink)
Registered User
 
3rd_gear_Ted's Avatar
 
Join Date: Oct 2007
Location: SoCal
Posts: 484
Garage
Currently use the five and zero settings on a similar type raised wing with a Gurney flap (RIP, Dan G)
The AOA efficiency ratio is COOL data
Glad my uprights are 1/8" thick T-6 alumanum (aluminium)
__________________
1980 911SC
Fiberglass Turbo Flares F&R with a 3.6L conversion

869#
AKA "Gemma"
Old 06-07-2018, 09:31 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #10 (permalink)
Reply

Thread Tools
Rate This Thread
Rate This Thread:

 


All times are GMT -8. The time now is 11:07 PM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.