will these tires fit my Z?....

My brother has some tires/wheels that he had on his old mustang, but i think they might be too small to fit on my z. The tires say 275/60b/14...i think. so that means that they are on 14" rims, right? I'm not exactly sure what each number on tires mean. I know the first one is the width, but i dunno what it is measured in. And the last number is the rim size, Right? What is the middle number...and what is the letter for??

Jeff

Correct, they are for a 14" wheel.

-Eric H

Ok, so will my car look funny with 14" rims? They seem kind of small. and what are the other numbers and letter for???

Jeff

The first number I believe measures from bead to bead, basically the tread part, and it is in millimeters. The second number is the sidewall height, foir instance, truck tires will have a higher number here than the little rubberbands on 22" wheels. The letter is the speed rating, I think Z is the best. The last number is the diameter of the wheel in inches.

The first number is the width of the tire. The second is the height.

Honestly, I think your car wouldn't look good with a 14" wheel. But I doubt they would bolt on anyway. They probably have a different bolt pattern and backspacing.

-Eric H

Ok, thanx for the replies guys. I was jus wondering if they would fit, because if i ever went to the track, these are nice wide tires, and i think they might be DR's too, not exactly sure though. I think you might be right about the backspacing, they seemed really deep. Our cars have a 5 bolt pattern right?

Jeff

lol, well yeah, there are 5 bolts, but it is a 5 X4.75" bolt pattern. Get some pics, I have never seen 14's on an fbody

i think it would look hilarious

Originally posted by Eric H
The first number is the width of the tire. The second is the height.
-Eric H
Ill elaborate just a bit. The second number isnt a set measurement, but a percentage of the width of the tire. Therefore, for example, a 275/60 tire is gonna have a (275mm*60%)=165mm sidewall height.


Also, if that size tire you gave was accurate, that makes for a 27" diameter tire which is a little over an inch bigger than standard camaro tires. So your speedometer and odometer will be a little off.

:)

I seriously doubt you could fit a 14" wheel on a 4th Gen.... many of us using 15" wheels for slicks have to resort to grinding down the calipers (rear) and adding spacers (front).

Originally posted by ImportedRoomate
Ill elaborate just a bit. The second number isnt a set measurement, but a percentage of the width of the tire. Therefore, for example, a 275/60 tire is gonna have a (275mm*60%)=165mm sidewall height.


Also, if that size tire you gave was accurate, that makes for a 27" diameter tire which is a little over an inch bigger than standard camaro tires. So your speedometer and odometer will be a little off.

:)

Is this true Injuneer? That the sidewall is a percentage of the width? No offense IR, but I have never heard anything like that before...

Check near the bottom (http://www.tiredefects.com/markings.htm) for aspect ratio :)

I like tirerack's (http://www.tirerack.com/tires/tiretech/general/size_information.jsp) better, its closer to what I said. :)

Originally posted by notstock4long
Is this true Injuneer? That the sidewall is a percentage of the width? No offense IR, but I have never heard anything like that before...

Yes.... that is 100% correct. A "40" aspect ratio tire has a sidewall height that is 40% of the widest part of the tire (section width).

For a 275/40-17

275 = section width, or widest part of the tire = 275mm / 25.4 = 10.83" section width.

Sidewall = 40% of section width = 0.40 X 10.83" = 4.33"

Diameter of the tire = wheel diameter + 2 sidewalls = 17 + (2 X 4.33) = 17 + 8.66 = 25.66" diameter

Thanks guys! I have never made the connection before, although I have heard of 'aspect ratio', just never really though about it. So a 315 with a 40 sidewall would be higher than a 245 with a 40 sidewall, right?

Yes:

315 / 25.4 = 12.40"
0.40 X 12.40 = 4.96"

245 / 25.4 = 9.65"
0.40 X 9.65 = 3.86"