Will these work?

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May 19, 2006 | 03:12 PM

VET IT B

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Drifting

Joined: Jan 2005

Posts: 1,590

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From: Forsyth Illinois

Will these work?

I am getting new 2000 thin spoke crome wheels, 17X9.5 and 18X10.5. I want to stay as close as I can with my new tires to the stock diameters.

275/40/17 Front and 315/35/18 Rears. Anybody see any problems? Would love some pics of rears 315.

Will there be any problem with the tires going outside of the fenders? Would I need any offset difference to keep them inside?

Thanks, Mark

May 19, 2006 | 05:52 PM

fat bob

Racer

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From: South Park (Pittsburgh) PA

Quote:

Originally Posted by VET IT B

Will there be any problem with the tires going outside of the fenders? Would I need any offset difference to keep them inside?

Thanks, Mark

Hi Mark, I can try to help somewhat.
1. As far as the math is concerned, the fronts and rears, the ones you are going to install, are both within .02" diameter of the stock C-5 sizes. So you have no AH, TC, or ABS issues.

2. I have a 275 on my C-6 front using a C-5 rear wheel. The greater offset of the C-5 rear compensates for the increased section, 245 stock
increased to 275, that the tires do not stick out at all. They look perfectly stock.

That is as far as I can go with my limited knowledge. You are going to need to know the offset of your new wheels and compare to the stock C-5 offset and then you can have some idea. There are others on the Forum who can help in that area. My guess is that your new wheels should probably have 10-15 mm more positive offset which will put your new wheels closer to the center of the car and thus compensate for the increased section. Try Luke at TireRack, he is very helpful but you will need your offset for him to make a calculation.

The diameters are perfect.

Bob

May 20, 2006 | 06:03 AM

VET IT B

Thread Starter

Drifting

Joined: Jan 2005

Posts: 1,590

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From: Forsyth Illinois

Thanks Bob, this helps. I thought I was ok on the sizes, I will need to do more research on the ofset numbers of the wheels.

I am a little worried about the tires going outside of the fenders to far, as I do not like that.
Thanks, Mark

May 25, 2006 | 09:02 AM

VET IT B

Thread Starter

Drifting

Joined: Jan 2005

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From: Forsyth Illinois

Anyone have pics of 305/35/18 or 315/35/18 from the rear? Would like to see how they look in relation to the fenders. Thanks,

Mark

Jun 11, 2006 | 07:30 AM

VET IT B

Thread Starter

Drifting

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From: Forsyth Illinois

ttt

Jun 13, 2006 | 04:13 PM

NW_Vettes

Drifting

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From: Albany Oregon

I had Nitto extreme RII's at 305/18 on the back and they stuck out on a stock sized z06 wheel but they looked hot. They stuck out just a little, but that little was perfect.