275mm Front Tire Question

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Jun 23, 2009 | 01:03 PM

Torch Red 02

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Instructor

Joined: Aug 2005

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From: Lothian MD

275mm Front Tire Question

I have a 2002 Coupe, MN6, Z51 package. The car is in great shape and we’re going to do a few minor mods just to keep things fun. First up will be C5 Z06 wheels and tires. My plan is to stay with stock offsets and sizes. However, some of the tires I’m looking at are not available in the stock 265/40-17 for the front; I would have to go to 275/40-17. My wife and I Autocross 4-5 times per year and we’re starting to do some track days, so I want to be careful that I don’t overstress the front suspension with the new front tires, or generate so much neutral steering that the car becomes twitchy.

Anybody have negative experience with the 275 size on the front of a C5 coupe or Z06?

Jun 23, 2009 | 01:13 PM

blacksedan87

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From: "It's 106 miles to Chicago, we've got a full tank of gas, half a pack of cigarettes, it's dark, and

St. Jude Donor '03-'04-'05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16-'17-‘18-'19

NCM Sinkhole Donor

I run a 275-35x18 in front on my car. The overall diameter is 25.7". The 275-40x17 is 25.6" overall diameter - I think you'll be fine as long as the wheel is at least 9" wide.

Jun 23, 2009 | 01:19 PM

madmatt9471

Team Owner

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From: Palmdale, Ca----- 2009 Cyber Gray 4LT A6 F55 452 RWHP 422 RWTQ- RIP 1998 C5 734 RWHP & 585 RWTQ-----

I know others who have that set-up and are good with no negative effects

You might also want to post in the Racing/Track section here on the Forum

Thanks,Matt

Jun 23, 2009 | 01:24 PM

csexton

Team Owner

Joined: Jul 2004

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From: Danville Virginia

275 up front on my 01 coupe with no problems

Chuck

Jun 23, 2009 | 02:56 PM

Torch Red 02

Thread Starter

Instructor

Joined: Aug 2005

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From: Lothian MD

Matt - thanks. I did start over in the Autocross/Track section with a similar question a few weeks ago. I thought I'd try this one and see if I get more responses. So far, I'm encouraged.

Jun 23, 2009 | 03:53 PM

bucwheat

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From: 4th on the list of top 100 in USA Ga.

Man,I have 9.5 wheels ,I will go 275's next time I need new tires.

Jun 23, 2009 | 05:04 PM

angman5

Drifting

Joined: May 2003

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From: Lakeland FL

I have been running 275 up front for 5 years no problems in autoX here

Jun 23, 2009 | 06:49 PM

Thickraybans

Racer

Joined: Jan 2006

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From: Ft. Wayne In

It pays to do research.The last time I bought front tires I was going to get Kumho SPT's in a 275/35-18 however the 265 in that tire is less than .2" narrower section width,looked like the exact same tread width,and more than half a pound lighter weight.