Will these tires fit?

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Nov 27, 2009 | 05:43 PM

chrisbenoit

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Instructor

Joined: Apr 2009

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From: Pictou Nova Scotia

Will these tires fit?

I am buying a set of C6 wheels, so they will be 18x8.5 and 19x10's. Will 255/35ZR18 fit on the front and a 305/30ZR19 fit on the rear? I want jam in the most tire I can but I don't want it to rub. If these won't work, what will? My car is a 99FRC. thanks.

Last edited by chrisbenoit; Nov 28, 2009 at 07:13 PM.

Nov 27, 2009 | 05:57 PM

chuffo302stang

Racer

Joined: May 2009

Posts: 251

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From: New Bern NC

it would probably be better to run a 255 or 245 40 18 up front
since your wheel is only 8.5 wide

http://www.1010tires.com/tiresizecalculator.asp

This web site is helpful, its similar to a chart I had when I was in the tire business

Nov 27, 2009 | 09:36 PM

3whit

Drifting

Joined: Oct 2007

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From: Bellows Falls Vermont

I run stock C6 Polished wheels on ,my C5 but the sizes I used were the stock C6 sizes 245-40-18 and 285-35-19 ,you will need a spacer on the rears fronts will be fine .

Nov 28, 2009 | 06:32 AM

chrisbenoit

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From: Pictou Nova Scotia

Would a 245/40/18 and a 305/30/19 set off any unwanted TC or active handling codes? The fronts are the same overall height as the stock C5 tires while the rears are slightly smaller. Going from a 26.6" to a 26.25" inches. It's only about 1.5% shorter. I work for Michelin so these are the Pilot Sport PS2 numbers, the tires are free so I want to go as big as possible.

Nov 28, 2009 | 09:38 AM

chrisbenoit

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From: Pictou Nova Scotia

They do make a 255/35/18, they would be 25.0" tall verses 25.7" tall. That is approximately 2.8% shorter than stock. Will a 255/35 at 2.8% shorter and a 305/30 that is 1.2% shorter trigger any codes in the car?

Nov 28, 2009 | 06:52 PM

chrisbenoit

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From: Pictou Nova Scotia

bump

Nov 29, 2009 | 01:55 PM

chrisbenoit

Thread Starter

Instructor

Joined: Apr 2009

Posts: 242

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From: Pictou Nova Scotia

I trust 8VETTE7, he helped me on numerous occasions but just looking for another opinion, Will a 255/35/18 at 2.8% shorter and a 305/30/19 that is 1.2% shorter trigger any codes in the car? TC or active handling, I'm not too concerned with the speedo being off, I'll be happy if that is all that is affected.

Last edited by chrisbenoit; Nov 29, 2009 at 02:02 PM.

Nov 30, 2009 | 12:21 AM

rebelheart

Safety Car

Joined: May 2008

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From: Lacombe Louisiana

I run 305/30-19's on mine with C6Z06 wheels and stock C5 offsets.They barely touched the innner panels under "spirited" driving conditions.A 1/4 inch spacer cured that.