Tire size question
Thread Starter
Heel & Toe
Joined: Jan 2003
Posts: 18
Likes: 1
From: Roseland, NJ
Tire size question
I'm about to replace the tires on my '99 roadster. Currently I'm using the original runflats on polished OEM '00 wheels. I'm considering upsizing to 295/35-18 Goodyear F1-GSD3s on the rear...Does anyonone know if these will fit correctly?
Andrew
Andrew
Melting Slicks
Joined: Jun 2004
Posts: 3,439
Likes: 6
From: Newark, DE
St. Jude Donor '06
This subject has come up here a lot. Many people will tell you that a 295/35-18 tire will fit fine on the stock Y2k rims (9.5" wide).
I look at it this way...
GM's interest is maximizing profit margin, consistent with providing a safe vehicle. There has to be a reason they provided 10.5" wheels for that size on the Z06. Also look at what the tire mfg says. Remember that their interest is in selling tires. They don't do that by telling you that a combination of tire/wheel is incompatible if it's not. Note that they recommend 10" as the minimum wheel diameter to mount this tire:
http://www.goodyeartires.com/goodyea...8&sidewall=VSB
Caveat emptor - you decide.
I look at it this way...
GM's interest is maximizing profit margin, consistent with providing a safe vehicle. There has to be a reason they provided 10.5" wheels for that size on the Z06. Also look at what the tire mfg says. Remember that their interest is in selling tires. They don't do that by telling you that a combination of tire/wheel is incompatible if it's not. Note that they recommend 10" as the minimum wheel diameter to mount this tire:
http://www.goodyeartires.com/goodyea...8&sidewall=VSB
Caveat emptor - you decide.
Last edited by Mr. Lucky; Aug 15, 2006 at 10:03 PM.
Le Mans Master
Joined: Jan 2006
Posts: 6,102
Likes: 2
From: Pinckney MI
St. Jude Donor '11
This is the closest pic I have of the rear tire...hope it'll do On a side note, the fronts are too big (275's).
They were on the car when I bought it. They're too wide and tall looks wise. If I had the spare $$, I would replace them.
On a side note, the fronts are too big (275's).They were on the car when I bought it. They're too wide and tall looks wise. If I had the spare $$, I would replace them.
Last edited by Kebrock; Aug 15, 2006 at 11:19 PM.
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Safety Car
Joined: Aug 2004
Posts: 4,734
Likes: 232
From: Youngstown Ohio
Originally Posted by wamara
Andrew,
They will fit, although "correctly" is subject to debate/interpretation. I would simply opine that the 295 tire width is not optimal for a 9.5" wheel width.
They will fit, although "correctly" is subject to debate/interpretation. I would simply opine that the 295 tire width is not optimal for a 9.5" wheel width.
Burning Brakes
Joined: May 2003
Posts: 1,056
Likes: 2
From: Elgin Il
Ive been running 315's on my C4 9.5" rims for over 12 years.
I have the same tires your looking at now. 315's stick out quite a bit from the rim, but I have not had any problems with the tire/rim set up.
I have the same tires your looking at now. 315's stick out quite a bit from the rim, but I have not had any problems with the tire/rim set up.
Melting Slicks
Joined: Sep 2005
Posts: 2,439
Likes: 3
From: MN
St. Jude Donor '06
Originally Posted by Kebrock
This is the closest pic I have of the rear tire...hope it'll do On a side note, the fronts are too big (275's).
They were on the car when I bought it. They're too wide and tall looks wise. If I had the spare $$, I would replace them.
On a side note, the fronts are too big (275's).They were on the car when I bought it. They're too wide and tall looks wise. If I had the spare $$, I would replace them.
Were your thin spokes once chrome and now powdercoated??
Le Mans Master
Joined: Jan 2006
Posts: 6,102
Likes: 2
From: Pinckney MI
St. Jude Donor '11
Originally Posted by HIRISC
BADA$$ looking FRC!
Were your thin spokes once chrome and now powdercoated??
Were your thin spokes once chrome and now powdercoated??
I'm not for sure which they were...they were like that when I bought the car, which was nice cause I wanted to paint or powdercoat them anyways.
Advanced
Joined: Jul 2006
Posts: 67
Likes: 0
From: Phoenix AZ
Originally Posted by Clay_Assassin
Ive been running 315's on my C4 9.5" rims for over 12 years.
I have the same tires your looking at now. 315's stick out quite a bit from the rim, but I have not had any problems with the tire/rim set up.
I have the same tires your looking at now. 315's stick out quite a bit from the rim, but I have not had any problems with the tire/rim set up.
Night Owl for life
Joined: Nov 2003
Posts: 24,705
Likes: 4,549
From: Bugs Bunny should'a made a left turn here
Originally Posted by Clay_Assassin
Ive been running 315's on my C4 9.5" rims for over 12 years.
I have the same tires your looking at now. 315's stick out quite a bit from the rim, but I have not had any problems with the tire/rim set up.
I have the same tires your looking at now. 315's stick out quite a bit from the rim, but I have not had any problems with the tire/rim set up.
those tires have gotta stick out like:
Race Director
Joined: May 2000
Posts: 14,542
Likes: 5
Originally Posted by Silver Z06 Driver
I also had 315 35 17's on a 9.5 inch rims on my old 96 Vette...... I SCCA aotocrossed the crap out of them in VERY hard turns and spinouts and NEVER poped a bead!!!!
And the added benefit is that you've probably never scraped a rim on a curb.
Excellent!
