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Kirkham Motorsports

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  #1 (permalink)  
Old 07-30-2007, 01:33 AM
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Cobra Make, Engine: Harrison build #98 with Supercharged 6.2L of Chev Power, TKO600 5 speed gearbox
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Quote:
Originally Posted by 400TT
Agree with Rebel1.

But performance wise, you can't go past the modern rear-ends especially something like Skyline rear with it's 300mm vented rotors & 2 piston calipers. Just a fantastic unit all round and great value for money. But just not a lot of rear wheel dish on a Cobra.
Craig,

So the width of the rear wheel is reduced a little is it?. Can you still run 9 1/2 -10" on there or is that pushing it with clearances for the red tape people?.

Thanks for comments

TL
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Old 07-30-2007, 01:48 AM
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Quote:
Originally Posted by T.L.
Craig,

So the width of the rear wheel is reduced a little is it?. Can you still run 9 1/2 -10" on there or is that pushing it with clearances for the red tape people?.

Thanks for comments

TL
Sorry, should have explained it better. It's just got to do with how deep the wheel looks. How much rim is sticking out in front of the wheel centre and how much is sticking in. Nothing to do with width. So traditional Cobra look is to have lots of rim sticking outside, with Skyline rear you have what a call a medium amount of rim sticking out, with say a Classic Revival you have very little outside rim. With modern interpretation of Cobras these days, deep dish rims seem to have gone the way of the dodo anyway.

With Harrison you will breeze in 9 1/2 - 10". There have been a few Harrisons fitted with 12 1/2" rims on the rear. From measurements we took from our Harrison with Skyline rear, something like 315/35/17 was the widest tyre we could fit without modification, which is wider than most people want.

This is a Harrison built recently with 335/35/17 tyres.



And has stroked & supercharged LS1(or LS???).

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Last edited by 400TT; 07-30-2007 at 01:53 AM..
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Old 07-30-2007, 03:32 AM
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Craig, with a bit of poking around I found some other pics of that blue monster... twin NOS bottles and one very unique interior! Is there a link to the member gallery on the QLD site? I couldn't find it. Which kit is it based on?

Cheers,
Paul
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Old 07-30-2007, 01:52 AM
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Rim width isn't a problem for the modern double wishbone rear ends. It's just you have to run the rear suspension at it's full width as they can prove difficult to narrow. This means you end up with not a lot of dish on the rear wheels or even a positive offset where there's more rim on the inside than the outside.

I wasn't so keen on the look at first but it's grown on me. My rear rims are 11" wide and the tyres are 315/35/17 but it doesn't look like it because there's not a lot of dish on the rear rims.

I think this is the best pic I have to illustrate it. The dish on the rear wheels is the same as the front.



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Last edited by Aussie Mike; 07-30-2007 at 06:48 AM..
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Old 07-30-2007, 03:46 AM
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Here's my G-Force with Vintage Wheels in 17 x 8.5 with 235/45-17, and 17 x 10.5 with 315/35-17's...



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Old 07-30-2007, 04:22 AM
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I believe I have seen the car that Craig has posted and it is a beast supercharged and nitros.
What I can't understand is how is it going to pass engineering. The supercharger and nos bottles are non to subtle and the guys at the pits would be able to spot them easily.
Craig do you have any side shots of the car. When I saw it in the upholsterers my camera was flat. It appeared to have a skyline diff which (as you state) means a normal Harrison can fit those monster rear wheels.
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Old 07-30-2007, 04:32 AM
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Some more photos on our site.

http://www.cobracarclubqld.org.au/Ne...s/JoesNewCobra

It's definitely a Skyline rear.

It's got some Jap wheels on it, which are design to give a nice dish look with very little available offset. I forgot the name of these wheels off hand, will see if it comes to me.
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Last edited by 400TT; 07-30-2007 at 04:38 AM..
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Old 07-30-2007, 05:16 AM
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This is the "traditional" jag rear end in an RMC with shortened driveshafts to allow for dished wheels



These are australian produced 5 stud Halibrand replica wheels for those of us can't afford the real thing. (I am envious of your wheels Plums)

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