Absolute Pace

Welcome to Club Cobra.

You are currently viewing the world's largest resource for Shelby related information as a guest which gives you limited access to view most discussions, articles and access our other FREE features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload your own photos and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!


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
Main Menu
Nevada Classics
Nevada Classics
MMG Superformance
MMG Superformance
Advertise at CC
Banner Ad Rates
Keith Craft Racing
Keith Craft Racing
MMG Superformance
MMG Superformance
January 2021
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            
  #21 (permalink)  
Old 08-06-2007, 12:30 AM
400TT's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2004
Location: Gold Coast, AUS
Cobra Make, Engine: Wish I had my own PACE 427
Posts: 2,145
Not Ranked     
Default

Quote:
Originally Posted by stephen low
15" tyre what would be a normally tread width for this sized tyre?
I bought some Yokohama AVID S/T 15" tyres from Tirerack. A significantly better tyre than the old choices we have here - TA's & 325's. Plus heaps cheaper of course.

Front: 245/60/15 (673mm diameter)
Rear: 295/50/15 (678mm diameter)

I went with these sizes so they would bag nicely on original sized 7.5" & 9.5" rims. And it's a compromise against width and diameter.

If you want a bigger diameter you could go with:

Front: 225/70/15 (696mm)
Rear: 275/60/15 (708mm) Lots of Cobras run this size.

If you want an original look, then go with Goodyear vintage bluestreaks(not approved):

Front: 26.5x8.0-15 (665mm)
Rear: 26.5x10.0-15 (678mm)


With larger diameter rims you actually struggle with rear tyre diameter. e.g. 315/35/17(Sumitomo's etc) are just over 650mm in diameter. You would do better with 335/35/17's, but still fall short of diameters of 15" tyres. 18" it is basically worse.

The bigger the diameter the tyre, the lower the car will look as you are filling the wheel arches and gaining clearance underneath.

The downsides of 15" rubber is performance and brake size availability. You can only squeeze in a maximum of 310mm rotors using the slimest of calipers.

At least with tyres like AVID S/T street performance is at least respectable.

Also something like 315/35/17 would not appear any wider from the rear of the vehicle than say my 295/50/15 tyres. My 295's have a overall width of 315mm when mounted on 9.5" rims. A 315/35/17 on a 11" rim would have an overall width of 320mm from memory...amazing hey. But the 315 has a massive 35mm more tread width.

315/17 Sumi's are fantastic value and a good option for wide 17" rubber.

Check the wheel arch sizes on the G-Force, if they are anything like the original Cobra's, you will always struggle to fill them.
__________________
www.absolutepace.com

Last edited by 400TT; 08-06-2007 at 01:13 AM..
Reply With Quote
Sponsored Links
Sponsored Links
  #22 (permalink)  
Old 08-06-2007, 12:52 AM
Aussie Mike's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2001
Location: Sunbury, VIC
Cobra Make, Engine: Rat Rod Racer, LS1 & T56
Posts: 5,407
Not Ranked     
Default

I'm running 315/35/17 Sumitomos on the rear 17"x11" rims. Since there isn't much sidewall you need a wider rim as they pull in on a smaller rim. I've seen them installed on 10" rims and they look OK but are starting to pull in.

Tyre widths are measured from side wall to side wall and since the 315 has basically straight sidewalls with little or no bulge this translates to a fairly huge tread contact patch.

The fronts are 235/45/17 on 17"x8" rims. They are both similar rolling diameters and whilst they don't fill up the guards like a 15" tyre you can always lower the suspension a bit to get that look.

They may not be the stickiest tyre available but they are great value for money and will probably hang on better than any 15" tyre apart from race compound tyres.

My theory is they will do fine for the street and I'll keep a set of dedicated race rubber for the track. It's only about $80 to get them swapped over at my local tyre shop. I plan to buy a spare set of rims eventually though.

Initially I was thinking about using race rubber for the street but from talking to people who have used them, race rubber on the street is just dangerous. They don't seem to work till they get warm and they only have a limited number of heat cycles till they are stuffed.
__________________
Mike Murphy
Melbourne Australia

Reply With Quote
  #23 (permalink)  
Old 08-06-2007, 01:28 AM
CC Member
Visit my Photo Gallery

 
Join Date: Feb 2006
Location: The Hills, NSW
Cobra Make, Engine: Absolute Pace
Posts: 1,354
Not Ranked     
Default

Craig,

What rubber are you going for on the GT40?

Ben
Reply With Quote
  #24 (permalink)  
Old 08-06-2007, 01:55 AM
400TT's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2004
Location: Gold Coast, AUS
Cobra Make, Engine: Wish I had my own PACE 427
Posts: 2,145
Not Ranked     
Default

Quote:
Originally Posted by Beejay
Craig,

What rubber are you going for on the GT40?

Ben

I have Michelin Pilots:

Front: 225/45/18
Rear: 335/30/18

18's to clear the brakes I have for it.
__________________
www.absolutepace.com
Reply With Quote
  #25 (permalink)  
Old 08-06-2007, 03:00 AM
Cameron Parsons's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Nov 2003
Location: Queensland, Australia, WI
Cobra Make, Engine: Back in the saddle
Posts: 768
Not Ranked     
Default

Everyone has their own ideas, it's part of what makes these toys so much fun. I have 15's and run the 352's on the Road and BFG TA/R on the Track. (I did use the 352's on the track a few years back, but the panel work bill got way too high too fast! ).



Cameron
__________________
Queensland Cobra Car Club
Wisconsin USA Chapter
ex: Beijing Chapter Member
Reply With Quote
  #26 (permalink)  
Old 08-06-2007, 04:08 AM
acecob's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2007
Location: Sydney, NSW
Cobra Make, Engine: DRB. Engine out :)
Posts: 517
Not Ranked     
Default yokohama

Yokohama ADVAN
zr rated, H compound
I have 17's on mine and they stick .

Dont know who has them in Melb, only 1 guy up here, he's out at Penrith
__________________
"I'd open my mind, but I don't want the stupid to corrupt it."
Reply With Quote
  #27 (permalink)  
Old 08-06-2007, 05:58 AM
sambo's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2007
Location: Melbourne, VIC
Cobra Make, Engine: Harrison, 6.0L Chev
Posts: 2,513
Not Ranked     
Default

Guys, I find this classic vs. modern wheel size 'debate' gives me headaches. It's interesting and mystifying at the same time... anyway, do you guys use some sort of calculator to determine final tyre width/diameter for a given wheel size or is it trial and error?

Nobody has mentioned 16" wheels yet. 15" is better looking to me but I'm sure 17" tyres perform better (comfort aside). But why no go for 16s? What would be the ideal width/profile/diameter for that size?

Thanks
Reply With Quote
  #28 (permalink)  
Old 08-06-2007, 04:18 PM
hsv300's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Feb 2007
Location: Toowoomba,, QLD
Cobra Make, Engine: Harrison supercharged
Posts: 291
Send a message via MSN to hsv300 Send a message via Skype™ to hsv300
Not Ranked     
Default

Try this site Sambo
http://www.tyresite.com/tyrecalc.asp
__________________
Harrison Cobra
Ford 4.6l supercharged
T56 six speed
Reply With Quote
  #29 (permalink)  
Old 08-06-2007, 04:27 PM
400TT's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2004
Location: Gold Coast, AUS
Cobra Make, Engine: Wish I had my own PACE 427
Posts: 2,145
Not Ranked     
Default

Plenty of online wheel/tyre size calculators. Just Google "tire calculator" etc. They do vary slightly between manufacturers though, so for the exact spec's see the manufacturers web site.

16" tyres are really limited in sizes(especially wide sizes) & pricing is often poor, that's the downside. But they are a great compromise for looks and performance. A lot of Cobras are fitted with 16" wheels. My GT40 originally had 16" wheels.
__________________
www.absolutepace.com

Last edited by 400TT; 08-06-2007 at 04:46 PM..
Reply With Quote
  #30 (permalink)  
Old 08-06-2007, 05:21 PM
sambo's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2007
Location: Melbourne, VIC
Cobra Make, Engine: Harrison, 6.0L Chev
Posts: 2,513
Not Ranked     
Default

Thanks guys I'll check out those calculators. For those with 16" wheels, what tyres are you running?
Reply With Quote
  #31 (permalink)  
Old 08-06-2007, 05:34 PM
400TT's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2004
Location: Gold Coast, AUS
Cobra Make, Engine: Wish I had my own PACE 427
Posts: 2,145
Not Ranked     
Default

In 16" sizing, the most popular choice seems to be:

Front: 225/50/16
Rear: 255/50/16

You can squeeze those tyres onto 16x8" & 16x10" rims if you want.


Check out 07cob's Gallery for photos of 225/50 & 255/50 16" tyres on 8 & 10" rims on a Harrison.

http://www.clubcobra.com/photopost/s...=24838&cat=500
__________________
www.absolutepace.com

Last edited by 400TT; 08-06-2007 at 05:37 PM..
Reply With Quote
  #32 (permalink)  
Old 08-06-2007, 06:22 PM
sambo's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2007
Location: Melbourne, VIC
Cobra Make, Engine: Harrison, 6.0L Chev
Posts: 2,513
Not Ranked     
Default

Thanks Craig. Are they Millaz 'champagne glass' wheels? The rubber looks to me like it could go a little wider too.
Reply With Quote
  #33 (permalink)  
Old 08-06-2007, 06:37 PM
400TT's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2004
Location: Gold Coast, AUS
Cobra Make, Engine: Wish I had my own PACE 427
Posts: 2,145
Not Ranked     
Default

Yes, they are Millaz champagne glass(wine) wheels.

It's hard to find much in 16" in the wider sizes, well anything that is suitable for street use on a Cobra anyway.
__________________
www.absolutepace.com

Last edited by 400TT; 08-06-2007 at 06:39 PM..
Reply With Quote
  #34 (permalink)  
Old 08-06-2007, 07:55 PM
PCC's Avatar
PCC PCC is offline
CC Member
Visit my Photo Gallery

 
Join Date: Sep 2003
Location: Brisbane - sort of, QLD
Cobra Make, Engine: DRB 2000 - FORD Powered 302EFI
Posts: 1,431
Not Ranked     
Default

As Craig says, 16" dia Wheels used to result in a relatively poor choice.

Saying that I have noticed a recent improvement in this area.

As already said I cannot fault the Toyo T1R - Exceptional!

I have 225/50 on the front and 245/45 on the back.

$200 fitted and balanced for the front (each); and
$250 for the back.

Not forecasted to last long, but for my mileage not an issue
__________________
PCC (Peter Craig)
Keep the sun shining
Reply With Quote
  #35 (permalink)  
Old 08-06-2007, 09:19 PM
CC Member
Visit my Photo Gallery

 
Join Date: Feb 2006
Location: The Hills, NSW
Cobra Make, Engine: Absolute Pace
Posts: 1,354
Not Ranked     
Default

MHT makes the wheels for Foose, and they make no mention of custom fitments?

http://www.mhtwheels.com/default.cfm?brand=4

Ben
Reply With Quote
  #36 (permalink)  
Old 08-06-2007, 09:38 PM
CHANMADD's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Mar 2006
Location: San Marcos california, CA
Cobra Make, Engine: 1989 KCC from South Africa Right Hand Drive
Posts: 1,551
Not Ranked     
Default

Summit Racing has just added 315/45/16 , 27.2 inch Diameter Mickey Thompson ET street radial ,with a 11.2 Tread width for $179-95 each.I have 16's and could never find any bigger than 255, until now.My car does sit low but drives really smooth on these wheels.I have Kuhmo Exsta Supra ZR's with 255 rear and 225 front,and these tyres perform better than a set of Yokahama AVS100's that I had ,which also did'nt last very long.
Reply With Quote
  #37 (permalink)  
Old 08-07-2007, 12:33 AM
BigBlockRob's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jul 2007
Location: Perth, WA
Cobra Make, Engine: G-Force 460 on gas
Posts: 52
Send a message via Skype™ to BigBlockRob
Not Ranked     
Default

I'm gonna wack 335's on 18 inch rims on mine for the rear. !!!
I'm gonna use the same tyres those ferarri boys use!!
__________________
Life can be tough sometimes, There's a good chance we won't make it out alive!!

Last edited by BigBlockRob; 08-07-2007 at 12:38 AM..
Reply With Quote
  #38 (permalink)  
Old 08-07-2007, 03:19 AM
400TT's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jan 2004
Location: Gold Coast, AUS
Cobra Make, Engine: Wish I had my own PACE 427
Posts: 2,145
Not Ranked     
Default

Rob, something like this. 335/30/18's on a Harrison.





Don't limit yourself to Pirelli. You can get some really good deals from US Viper dealers on 335/30/18 Michelins. I bought mine from a Viper dealer through eBay US. They were very, very cheap, brand new with sticker on the tread. From memory around AU$350ea landed. Just make sure you shop around and are patient.
__________________
www.absolutepace.com
Reply With Quote
  #39 (permalink)  
Old 08-07-2007, 09:47 AM
BigBlockRob's Avatar
CC Member
Visit my Photo Gallery

 
Join Date: Jul 2007
Location: Perth, WA
Cobra Make, Engine: G-Force 460 on gas
Posts: 52
Send a message via Skype™ to BigBlockRob
Not Ranked     
Default

yeah looks sweet dont it??
__________________
Life can be tough sometimes, There's a good chance we won't make it out alive!!
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 11:51 PM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2021, 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