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  #1 (permalink)  
Old 02-02-2012, 01:20 PM
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Default 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.


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Last edited by Baz; 02-02-2012 at 01:22 PM..
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Old 02-02-2012, 01:55 PM
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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.
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Glen
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Old 02-02-2012, 01:57 PM
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Baz what is the offset, the stud pattern, and the centre hole diameter?
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Old 02-02-2012, 02:32 PM
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What about the fronts Baz?
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Old 02-02-2012, 03:54 PM
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Baz have you considered these instead of the BFGs?
Mickey Thompson Performance Tires & Wheels
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Old 02-02-2012, 04:11 PM
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There is also this tyre as an option:

CooperTiresConsumer - Cobra Radial G/T™
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Old 02-02-2012, 05:42 PM
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There is only 1 choice.

Has to be BillBoards.
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Old 02-02-2012, 05:58 PM
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Quote:
Originally Posted by Tenrocca View Post
What about the fronts Baz?
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
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Old 02-02-2012, 06:18 PM
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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
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Old 02-02-2012, 06:24 PM
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Baz, will your brake and callipers fit into the reduced space of the 15" wheel?
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Old 02-02-2012, 06:39 PM
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Quote:
Originally Posted by Modena View Post
Baz what is the offset, the stud pattern, and the centre hole diameter?
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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Old 02-02-2012, 06:41 PM
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Hey Baz
Any new pics of your car? Haven't seen any since you finished it.
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Old 02-02-2012, 07:08 PM
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Quote:
Originally Posted by Baz View Post
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
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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Old 02-02-2012, 07:26 PM
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You have it 100% correct Wazza (as if you doubted yourself)
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Old 02-02-2012, 08:07 PM
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Yep. I have the 285 40s in Sumitomo.
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Old 02-02-2012, 08:31 PM
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Are you still running round eith rego height suspension? Dropping it a couple of inches front and bsck will make the tyres fill the guards much better. Probably make it handle better too. Mine was pretty horrible with the suspension wound up both in looks and ride.

Just make sure your tyres clear the edges of the guards. From my memory of your build pics your wheel offsets put the tyres out near the lip. You wouldnt want one to rub and stuff up your nice paint. Thats one of the reasons i didnt paint mine before driving it. Ive found a few spots where the tyres rub and fixed them now.

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Old 02-02-2012, 08:40 PM
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Quote:
Originally Posted by Aussie Mike View Post
Are you still running round eith rego height suspension? Dropping it a couple of inches front and bsck will make the tyres fill the guards much better. Probably make it handle better too. Mine was pretty horrible with the suspension wound up both in looks and ride.

Just make sure your tyres clear the edges of the guards. From my memory of your build pics your wheel offsets put the tyres out near the lip. You wouldnt want one to rub and stuff up your nice paint. Thats one of the reasons i didnt paint mine before driving it. Ive found a few spots where the tyres rub and fixed them now.

Cheers
Thanks Mike. Everything fits just right now.

Baz
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Old 02-02-2012, 08:45 PM
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Quote:
Originally Posted by Wazza View Post
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.
Thats right Warren, but the Goodyears are half an inch larger in the overall diameter which is what I'm after.

Baz
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Old 02-02-2012, 08:52 PM
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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.

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Old 02-02-2012, 09:08 PM
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The larger tyres will throw your speedo out Baz, along with the tune for your shift points in the auto.
Just a thought.
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