Absolute Pace

Go Back   Club Cobra > Club Forums > Australian Cobra Club

Welcome to Club Cobra!  The World's largest non biased Shelby Cobra related site!

  •  » Representation from nearly all Cobra/Daytona/GT40 manufacturers
  •  » Help from all over the world for your questions
  •  » Build logs for you and all members
  •  » Blogs
  •  » Image Gallery
  •  » Many thousands of members and nearly 1 million posts! 

YES! I want to register an account for free right now!  p.s.: For registered members this ad will NOT show

Nevada Classics
MMG Superformance
Main Menu
Nevada Classics
Nevada Classics
MMG Superformance
MMG Superformance
Advertise at CC
Banner Ad Rates
Keith Craft Racing
MMG Superformance
MMG Superformance
March 2024
S M T W T F S
          1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
31            

Kirkham Motorsports

Like Tree12Likes
  • 1 Post By BJ's Snake
  • 1 Post By BJ's Snake
  • 2 Post By DanEC
  • 1 Post By Buzz
  • 3 Post By Cobra #3170
  • 4 Post By DaveW

Reply
 
LinkBack Thread Tools Rate Thread Display Modes
  #1 (permalink)  
Old 08-19-2017, 05:12 PM
DaveW's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2009
Location: Tynong North, Melbourne,, Vic
Cobra Make, Engine: Classic Revival CR3514, LS3, Dual Quads, Holley Dominator EFI, TR6060, VE 3.7 LSD, AP Racing Brakes, 17x8 & 10 Custom Dragway Billet Wheels.
Posts: 601
Not Ranked     
Default Radiator wind deflector ..wing...thingy ?

Hi All,
Sorry couldnt post a pic, but if you have a look at some web pics of original 427 street cars, like Bruce Camberns CSX3170 as an example, there is a horizontal panel in the center of the radiator opening.

Looking at other originals, some times this panel is angled up suggesting that it is a deflector.

Does any body know more info about these ? was it to reduce flow to the radiator for cooler climates or direct air to some other vent purpose ?
How was it adjusted ?

cheers to all
Dave
__________________
http://cobra-cr3514.blogspot.com/
Reply With Quote
  #2 (permalink)  
Old 08-19-2017, 09:59 PM
BJ's Snake's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2004
Location: Queanbeyan, NSW
Cobra Make, Engine: AP 289 USRRC #98 The Ken Miles Tribute Car
Posts: 1,133
Not Ranked     
Default

I've always liked the look of the splitter in the nose Dave.
Don't know the purpose of it but looks good anyway!





Cheers
DaveW likes this.
__________________
289 FIA Cobras RULE!
Reply With Quote
  #3 (permalink)  
Old 08-19-2017, 10:27 PM
DaveW's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2009
Location: Tynong North, Melbourne,, Vic
Cobra Make, Engine: Classic Revival CR3514, LS3, Dual Quads, Holley Dominator EFI, TR6060, VE 3.7 LSD, AP Racing Brakes, 17x8 & 10 Custom Dragway Billet Wheels.
Posts: 601
Not Ranked     
Default

That's awesome BJ, is yours a panel, or a tube, hard to tell from the pics but yes, like the look as well.
__________________
http://cobra-cr3514.blogspot.com/
Reply With Quote
  #4 (permalink)  
Old 08-19-2017, 11:58 PM
BJ's Snake's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2004
Location: Queanbeyan, NSW
Cobra Make, Engine: AP 289 USRRC #98 The Ken Miles Tribute Car
Posts: 1,133
Not Ranked     
Default

Panel in the shape of a wing,radius at the front to a point at the rear, about 100mm wide.

Cheers
DaveW likes this.
__________________
289 FIA Cobras RULE!
Reply With Quote
  #5 (permalink)  
Old 08-20-2017, 04:24 AM
DanEC's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Apr 2009
Location: Little Rock area, AR
Cobra Make, Engine: ERA Street Roadster #782 with 459 cu in FE KC engine, toploader, 3.31
Posts: 4,480
Not Ranked     
Default

My ERA's re-creation is also wing shaped and it's fixed in position. Seems the exact purpose and effectiveness of the originals has been debated forever. They don't seem to have any effect on engine cooling I'm told. Having an airplane wing in the nose would not seem to be the thing for ground hugging aerodynamics. Since the Street Roadsters were not intended to have an oil cooler maybe it was thought to help direct the air from that lower opening back towards the radiator instead of it moving up along the line of the radiator slope or something. However the area of the oil cooler is blocked off by a panel on my car - not sure about the originals.

1985 CCX and DaveW like this.
__________________
ERA 782 Running
https://www.youtube.com/watch?v=Cfge...b1-77fqwFRu7c]

Last edited by DanEC; 08-20-2017 at 04:40 AM..
Reply With Quote
  #6 (permalink)  
Old 08-20-2017, 04:31 AM
Buzz's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Feb 2000
Location: St. Lucia, West Indies, WI
Cobra Make, Engine: Unique 427SC 383 stroker
Posts: 3,725
Not Ranked     
Default

My guess has always been that the originals' radiators slope backwards at a fairly significant angle and the splitter was intended to deflect the flow of incoming air so it entered the radiator perpendicular to its surface for less turbulence and better flow through the fins.
DaveW likes this.
__________________
Tropical Buzz

Grant me the serenity to accept the things I cannot change, the strength to change the things I can, and the wisdom to know the difference. -(wasn't me)

BEWARE OF THE DOGma!! Dogmatism bites...
Reply With Quote
  #7 (permalink)  
Old 08-20-2017, 04:03 PM
Donunder's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Nov 2008
Location: Brisbane Australia. Cobra:Arntz Chev 454,
Posts: 847
Not Ranked     
Default

Quote:
Originally Posted by Buzz View Post
My guess has always been that the originals' radiators slope backwards at a fairly significant angle and the splitter was intended to deflect the flow of incoming air so it entered the radiator perpendicular to its surface for less turbulence and better flow through the fins.
In which case the splitter would have been angled downwards?
__________________
Don.
Reply With Quote
  #8 (permalink)  
Old 08-20-2017, 06:14 PM
CC Member
Visit my Photo Gallery

 
Join Date: Nov 2016
Location: Brisbane, QLD
Cobra Make, Engine: G Force Cobra 347 stroker
Posts: 60
Not Ranked     
Default

Hi guys. if you have a radiator that stands straight up. With the grill opening lower compared to the total heigh of the radiator. The air is mainly directed to the lower portion of the radiator. If you have a plate that splits the grille opening and is mounted on the inner end in the middle of the radiator. It will split the air evenly over the radiator surface. As you know the hot water enters the radiator at the top. With more air directed to the top of the radiator. This can help cooling. This also helps when you have a doubble pass radiator.
If the splitter plate angles upwards at the radiator and the air flows well through the core. The flow over the splitter can increase downforce very slightly.
Competition radiators made by PWR can be made with the fins in the radiator on an angle. That way if the radiator is tilted back on the same angle, the air will flow straight through the fins without causing uplift.
Bender
Reply With Quote
  #9 (permalink)  
Old 08-20-2017, 08:54 PM
CC Member
Visit my Photo Gallery

 
Join Date: Apr 2007
Cobra Make, Engine:
Posts: 1,009
Not Ranked     
Default

Front down force, I have tried it with and without and the nose stays down with the panel installed. Very noticeable above 150.
DaveW, Rog246 and 1795 like this.
Reply With Quote
  #10 (permalink)  
Old 08-20-2017, 09:58 PM
DaveW's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2009
Location: Tynong North, Melbourne,, Vic
Cobra Make, Engine: Classic Revival CR3514, LS3, Dual Quads, Holley Dominator EFI, TR6060, VE 3.7 LSD, AP Racing Brakes, 17x8 & 10 Custom Dragway Billet Wheels.
Posts: 601
Not Ranked     
Default

oooh, Bruce, i'm a big fan of you and your car, its my screen saver actually , yes even from downunder in Oz !

Would you have any pics of the splitter and how it adjusts?

cheers
Dave
__________________
http://cobra-cr3514.blogspot.com/
Reply With Quote
  #11 (permalink)  
Old 08-21-2017, 07:22 AM
DanEC's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Apr 2009
Location: Little Rock area, AR
Cobra Make, Engine: ERA Street Roadster #782 with 459 cu in FE KC engine, toploader, 3.31
Posts: 4,480
Not Ranked     
Default

Quote:
Originally Posted by Cobra #3170 View Post
Front down force, I have tried it with and without and the nose stays down with the panel installed. Very noticeable above 150.
Well that's an interesting first-hand experience report. Wonder why they didn't also use it on the SC and competition models then?
__________________
ERA 782 Running
https://www.youtube.com/watch?v=Cfge...b1-77fqwFRu7c]
Reply With Quote
  #12 (permalink)  
Old 08-24-2017, 05:29 AM
CC Member
Visit my Photo Gallery

 
Join Date: Jun 2006
Location: Newcastle, Warners Bay, NSW
Cobra Make, Engine: RMC . 393 Dart alloy block Stroked 351 alloy heads ..all the goodies plus a pre oiler. al
Posts: 1,495
Not Ranked     
Default

My radiator leans forward at a good angle so I made the number plate to lay down at speed (60 k ) and stand up when stopped. Damn plate reader cameras have stymied this for me.
Reply With Quote
  #13 (permalink)  
Old 08-24-2017, 07:40 PM
CC Member
Visit my Photo Gallery

 
Join Date: Apr 2007
Cobra Make, Engine:
Posts: 1,009
Not Ranked     
Default Nose splitter

Quote:
Originally Posted by DanEC View Post
Well that's an interesting first-hand experience report. Wonder why they didn't also use it on the SC and competition models then?
I asked Dick Smith and he said it was not homologated with the car and they could not use it but they wanted to. I was told by an AC guy from England that I was crazy for not running it because of the down force. I tried it at SAAC at Watkins Glen in the early 1990's. I was up around 165 before the bus stop and the car was very stable at that speed. I took it out right after I bought the car in 1965 because I thought it was ugly. I stored it until the Watkins Glen event and reinstalled it after repainting the car. It has been in ever since, there is no adjustment just two tabs that hold it in place. The car had lots of lift above 140 without it so I was pleasantly surprised. There are pictures of it in my photo gallery.
Reply With Quote
  #14 (permalink)  
Old 08-25-2017, 12:35 AM
1795's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Aug 2013
Location: Canandaigua, NY
Cobra Make, Engine: SPF MKII Riverside Racer FIA
Posts: 2,471
Not Ranked     
Default

Quote:
Originally Posted by Cobra #3170 View Post
I asked Dick Smith and he said it was not homologated with the car and they could not use it but they wanted to. I was told by an AC guy from England that I was crazy for not running it because of the down force. I tried it at SAAC at Watkins Glen in the early 1990's. I was up around 165 before the bus stop and the car was very stable at that speed. I took it out right after I bought the car in 1965 because I thought it was ugly. I stored it until the Watkins Glen event and reinstalled it after repainting the car. It has been in ever since, there is no adjustment just two tabs that hold it in place. The car had lots of lift above 140 without it so I was pleasantly surprised. There are pictures of it in my photo gallery.
I was wondering how my 289 FIA would do at around 150-160. It will be a crowded field at Watkins Glen with right now 49 cars in my group. Depending how things open up, I may or may not be able to get up to about 150 on the back straight prior to the bus stop. should be able to get to at least 140. The nose opening is a little smaller on the 289 FIA, not sure how much of an affect that may have. Will let you now in a week and a half.
__________________
Reply With Quote
  #15 (permalink)  
Old 08-25-2017, 07:37 AM
CC Member
Visit my Photo Gallery

 
Join Date: Mar 2004
Cobra Make, Engine: spf 2112 *427 stroker windsor
Posts: 328
Not Ranked     
Default

Where can I get radiator wind deflector?
Reply With Quote
  #16 (permalink)  
Old 08-25-2017, 08:53 AM
Senile Club Cobra Member
Visit my Photo Gallery

 
Join Date: Feb 2001
Location: Buffalo, NY USA, NY
Cobra Make, Engine: Time Machines Motorsports LLC- Superformance Dealer
Posts: 4,481
Not Ranked     
Default

Quote:
Originally Posted by carmine View Post
Where can I get radiator wind deflector?
Splitter Street Car Splitter Street Car [427 Street CSX KMP HT ACE] - $485.00 : Acton Custom Enterprises, Custom Metal for Cobras
__________________
"I'm high all right, but on the real thing....powerful gasoline and a clean windshield..."

http://www.timemachinesauto.com/
Reply With Quote
  #17 (permalink)  
Old 08-25-2017, 03:49 PM
BJ's Snake's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2004
Location: Queanbeyan, NSW
Cobra Make, Engine: AP 289 USRRC #98 The Ken Miles Tribute Car
Posts: 1,133
Not Ranked     
Default

I formed the shape out of hard foam material and then fibreglassed, came up a treat!
__________________
289 FIA Cobras RULE!
Reply With Quote
  #18 (permalink)  
Old 08-25-2017, 05:20 PM
DaveW's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2009
Location: Tynong North, Melbourne,, Vic
Cobra Make, Engine: Classic Revival CR3514, LS3, Dual Quads, Holley Dominator EFI, TR6060, VE 3.7 LSD, AP Racing Brakes, 17x8 & 10 Custom Dragway Billet Wheels.
Posts: 601
Not Ranked     
Default

I suspect an aluminium louver will disappear from the back veranda
deano59, guye, gjkrv8 and 1 others like this.
__________________
http://cobra-cr3514.blogspot.com/
Reply With Quote
Reply


Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -7. The time now is 08:50 AM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
The representations expressed are the representations and opinions of the clubcobra.com forum members and do not necessarily reflect the opinions and viewpoints of the site owners, moderators, Shelby American, any other replica manufacturer, Ford Motor Company. This website has been planned and developed by clubcobra.com and its forum members and should not be construed as being endorsed by Ford Motor Company, or Shelby American or any other manufacturer unless expressly noted by that entity. "Cobra" and the Cobra logo are registered trademarks for Ford Motor Co., Inc. clubcobra.com forum members agree not to post any copyrighted material unless the copyrighted material is owned by you. Although we do not and cannot review the messages posted and are not responsible for the content of any of these messages, we reserve the right to delete any message for any reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold us harmless with respect to any claim based upon transmission of your message(s). Thank you for visiting clubcobra.com. For full policy documentation refer to the following link: CC Policy