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CC Advertisers
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02-02-2012, 02:20 PM
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CC Member
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Join Date: Jul 2007
Location: Sydney Australia,
NSW
Cobra Make, Engine: RMC with 6 litre 307KW LS2, Comp Cam, 348rwhp & 532.5 ftlb of torque with 6L80E Tiptronic Transmission
Posts: 1,400
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Not Ranked
Upgrading rear tyres and wheels
At the moment, I have two 315x35x17" Sumitomos on 10 1/2" x 17" Vintage Pin Drive rims which have only done 2,500 k's fitted to the rear of my Cobra. I am considering changing the look of my car to get a more beefy appearance in the rear wheel department by fitting 295x50Rx15" B.F. Goodrich Radial T/A 's tyres to new 10 1/2" x 15" Vintage Pin Drives.
I am seeking expressions of interest from anyone who might be interested in purchasing the two 315's on 17" Vintage Knock Offs for $1,000. That price is for the rim and tyre only and does not include the Adapters or Spinner Kit.
Regards
Baz
Last edited by Baz; 02-02-2012 at 02:22 PM..
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02-02-2012, 02:55 PM
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CC Member
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Join Date: Aug 2009
Location: Adelaide,
SA
Cobra Make, Engine: AP 289FIA 'English' spec.
Posts: 13,152
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Not Ranked
That's a good way to go Baz. IMO, the 15" wheels will look great....very period correct, and as you say, "beefy". Worth doing.
Cheers,
Glen
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02-02-2012, 02:57 PM
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CC Member
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Join Date: Nov 2009
Location: Cheltenham,
Vic
Cobra Make, Engine: Classic Revival CR3516, LS3, Aussie Mike'd T-56, 3.70 LSD, AP brakes, Penske shocks
Posts: 1,616
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Not Ranked
Baz what is the offset, the stud pattern, and the centre hole diameter?
__________________
BUILD-BLOG: http://cobrablog.holnet.net
Ben in AU
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02-02-2012, 07:39 PM
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CC Member
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Join Date: Jul 2007
Location: Sydney Australia,
NSW
Cobra Make, Engine: RMC with 6 litre 307KW LS2, Comp Cam, 348rwhp & 532.5 ftlb of torque with 6L80E Tiptronic Transmission
Posts: 1,400
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Not Ranked
Quote:
Originally Posted by Modena
Baz what is the offset, the stud pattern, and the centre hole diameter?
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Hi Modena,
Thanks for your interest. I have changed my mind after some advice on a PM. I have been recommended a set of Goodyear 285x40x17 GS-D3's for the rears which have a much higher wall height and just what I am looking for. This way, I don't have to buy a new set of 15" rims and end up with the look that I am after.
Thanks everyone for their interest.
Baz |
02-02-2012, 08:08 PM
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CC Member
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Join Date: Nov 2006
Location: Gold Coast Queensland,
QLD
Cobra Make, Engine: Harrison#97 LS7 / T56
Posts: 1,683
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Not Ranked
Quote:
Originally Posted by Baz
Hi Modena,
Thanks for your interest. I have changed my mind after some advice on a PM. I have been recommended a set of Goodyear 285x40x17 GS-D3's for the rears which have a much higher wall height and just what I am looking for. This way, I don't have to buy a new set of 15" rims and end up with the look that I am after.
Thanks everyone for their interest.
Baz
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Hey Baz...
You might want to re-check that ....
I'm pretty sure that the "Wall Height" on the Sumitomos will work out to be 110.25 mm , and the GS-D3 Goodyears to be 114 mm....
That's only a "flea's doodle" difference !
Aren't the "Middle numbers" ......e.g. 315/ 35/17...and 285/ 40/17... on all of the tyres sizes a "percentage" of the width ?
i.e. 315 X 35% = 110.25mm
285 X 40% = 114.00mm
Difference in "Wall Height" = 3.75mm ( 15/100ths of an inch )
Have I got this wrong ??
Cheers,
Warren. |
02-02-2012, 09:45 PM
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CC Member
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Join Date: Jul 2007
Location: Sydney Australia,
NSW
Cobra Make, Engine: RMC with 6 litre 307KW LS2, Comp Cam, 348rwhp & 532.5 ftlb of torque with 6L80E Tiptronic Transmission
Posts: 1,400
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Not Ranked
Quote:
Originally Posted by Wazza
Hey Baz...
You might want to re-check that ....
I'm pretty sure that the "Wall Height" on the Sumitomos will work out to be 110.25 mm , and the GS-D3 Goodyears to be 114 mm....
That's only a "flea's doodle" difference !
Aren't the "Middle numbers" ......e.g. 315/35/17...and 285/40/17... on all of the tyres sizes a "percentage" of the width ?
i.e. 315 X 35% = 110.25mm
285 X 40% = 114.00mm
Difference in "Wall Height" = 3.75mm ( 15/100ths of an inch )
Have I got this wrong ??
Cheers,
Warren.
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Thats right Warren, but the Goodyears are half an inch larger in the overall diameter which is what I'm after.
Baz |
02-02-2012, 09:52 PM
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CC Member
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Join Date: Jan 2001
Location: Sunbury,
VIC
Cobra Make, Engine: Rat Rod Racer, LS1 & T56
Posts: 5,391
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Not Ranked
1/2" is going to be hard to pick as it's only 1/4" top and bottom. I think they will just appear to look bigger because they have a taller sidewall. The gap to the guards will be about the same.
Cheers
__________________
Mike Murphy
Melbourne Australia
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02-02-2012, 03:32 PM
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CC Member
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Join Date: Nov 2004
Location: Sydney,
NSW
Cobra Make, Engine: Classic Revival #3199. 366ci L76, T56 6 speed, Blue circle custom paint, Australias most original cobra 2009-2010
Posts: 2,396
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Not Ranked
What about the fronts Baz?
__________________
Proudly registered since 2013.
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02-02-2012, 04:54 PM
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CC Member
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Join Date: Nov 2008
Location: Brisbane Australia. Cobra:Arntz Chev 454,
Posts: 847
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Not Ranked
Baz have you considered these instead of the BFGs?
Mickey Thompson Performance Tires & Wheels
__________________
Don.
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02-02-2012, 05:11 PM
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CC Member
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Join Date: May 2002
Location: Brisbane Australia,
QLD
Cobra Make, Engine: RMC under re-construction, GenIV with tremec 600, Jag 3.31 L/S diff
Posts: 3,318
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Not Ranked
__________________
It's impossible to soar like an eagle when you're surrounded by turkeys.
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02-02-2012, 11:11 PM
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CC Member
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Join Date: Jun 2010
Location: Wollongong,
nsw
Cobra Make, Engine: Kirkham coyote
Posts: 35
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Not Ranked
Quote:
Originally Posted by Donunder
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I have a set of Mickey Thompson ST sportsmans for sale with 500km on them nearly new . 2 x 255/60R15
2 x 275/60R15
Nick |
02-02-2012, 06:58 PM
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CC Member
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Join Date: Jul 2007
Location: Sydney Australia,
NSW
Cobra Make, Engine: RMC with 6 litre 307KW LS2, Comp Cam, 348rwhp & 532.5 ftlb of torque with 6L80E Tiptronic Transmission
Posts: 1,400
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Not Ranked
Quote:
Originally Posted by Tenrocca
What about the fronts Baz?
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Hi Andrew,
I am leaving the 17's and the Sumo's on the front. I'm quite haoppy with the appearance in that area and also their grip isn't too bad either.
Baz |
02-02-2012, 06:42 PM
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CC Member
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Join Date: Feb 2002
Location: Alice Springs, central Australia,
NT
Cobra Make, Engine: Classic revival kit (CR3181), gen III engine, T56 6 speed box, AU XR8 lsd diff
Posts: 5,699
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Not Ranked
There is only 1 choice.
Has to be BillBoards.
__________________
Cruising in 5th
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Never be afraid to do something new, Remember, Amateurs built the Ark: Professionals built the Titanic.
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02-02-2012, 07:18 PM
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CC Member
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Join Date: Jan 2001
Location: Sunbury,
VIC
Cobra Make, Engine: Rat Rod Racer, LS1 & T56
Posts: 5,391
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Not Ranked
Are you going for 15's for drag racing? Those TA's may not be the best choice. Maybe look at some drag radials. BF Goodrich make some with tread.
Cheers
__________________
Mike Murphy
Melbourne Australia
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02-02-2012, 07:24 PM
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CC Member
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Join Date: Jun 2007
Location: Sunshine Coast Qld,
QLD
Cobra Make, Engine: Harrison # 80; Ford 5.0L HO Trickflow heads, cam and rockers and MassFlow EFI
Posts: 3,482
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Not Ranked
Baz, will your brake and callipers fit into the reduced space of the 15" wheel?
__________________
Merv
Ford Cobra
Harrison #80.
Peregian Beach
Sunshine Coast Qld.
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02-03-2012, 07:59 PM
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CC Member
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Join Date: Jul 2007
Location: Sydney Australia,
NSW
Cobra Make, Engine: RMC with 6 litre 307KW LS2, Comp Cam, 348rwhp & 532.5 ftlb of torque with 6L80E Tiptronic Transmission
Posts: 1,400
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Not Ranked
Quote:
Originally Posted by Merv and Sharon
Baz, will your brake and callipers fit into the reduced space of the 15" wheel?
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I hope so Merv. I have a Jag rear end with inboard brakes which sit up near the diff housing. The tyres that I was thinking of putting on were around 30 cms wide not 30 inches. The things a Cobra not a Road Roller 
Baz |
02-03-2012, 11:22 PM
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CC Member
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Join Date: Jul 2004
Location: Ipswich,
QLD
Cobra Make, Engine: Harrison Cobra, SC540 Roadster
Posts: 359
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Not Ranked
Like Craig W, I looked how I could lower the car and get the tyres to fill the guards without scraping everything.
I replaced the twin 2.5" exhaust with quad 1.75" pipes. Picked up .75" there, replaced the 275/40/17 with 285/40/17 rears and 245/45/17 with 255/50/17 fronts. Unless you are looking you don't really notice the different tyre profile between the front and rear.
Overall I lowered the car another .5" on the rear and about 1" on the front. After adjusting the ride height to a level that the sump doesn't get scrapped over every speed bump the tyres now fill the guards nicely with only about 18mm gap to the rear guardsand 28mm gap on the front.
Warren
Last edited by WKB; 02-03-2012 at 11:38 PM..
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02-02-2012, 07:41 PM
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CC Member
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Join Date: Aug 2003
Location: Hunter valley wine country,
NSW
Cobra Make, Engine: Homebush. Lexus quad cam V8, R154 Supra box. Oh what a feeling.
Posts: 363
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Not Ranked
Hey Baz
Any new pics of your car? Haven't seen any since you finished it.
__________________
!!Its good to be stroked but i'd rather be blown!!
Proud member of the Bclub Central Coast chapter
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02-03-2012, 02:52 AM
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CC Member
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Join Date: Jul 2007
Location: Sydney Australia,
NSW
Cobra Make, Engine: RMC with 6 litre 307KW LS2, Comp Cam, 348rwhp & 532.5 ftlb of torque with 6L80E Tiptronic Transmission
Posts: 1,400
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Not Ranked
Quote:
Originally Posted by Shelby400
Hey Baz
Any new pics of your car? Haven't seen any since you finished it.
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Here you go:
url=http://www.clubcobra.com/photopost/showphoto.php/photo/78367]  [/url]
url=http://www.clubcobra.com/photopost/showphoto.php/photo/78369]  [/url]
Last edited by Baz; 02-03-2012 at 03:06 AM..
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02-02-2012, 08:26 PM
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CC Member
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Join Date: Feb 2002
Location: Alice Springs, central Australia,
NT
Cobra Make, Engine: Classic revival kit (CR3181), gen III engine, T56 6 speed box, AU XR8 lsd diff
Posts: 5,699
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Not Ranked
You have it 100% correct Wazza (as if you doubted yourself)
__________________
Cruising in 5th
---------------------------------------------
Never be afraid to do something new, Remember, Amateurs built the Ark: Professionals built the Titanic.
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