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02 Z28 Tire Load Index Sticker

This is a discussion on 02 Z28 Tire Load Index Sticker within the Camaro / SS forums, part of the Vehicle Specific category; When my car was imported into Canada, they stuck the import registry sticker on top of the tire load index ...

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    02 Z28 Tire Load Index Sticker

    When my car was imported into Canada, they stuck the import registry sticker on top of the tire load index sticker. I know what the stock tire sizes were and the recommended tire pressure, but I'm trying to determine what the original tire load index rating was. Tires were P245/50ZR16 pressure at 30psi. The reason for me asking is that I went with low profile 18" tires and I'm trying to match the tire pressure at load of the new ones to match the load of the old ones. If anyone has a sticker they could look at or even upload a pic of the sticker it would be greatly appreciated.

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    Former Mopar Man 2002ssslp's Avatar
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    I always go with 32psi cold which will give you 35 to 36 hot.
    My ride is a 2002 Camaro SS SLP #3296 with 30k, LTH, 3" Y, CME, Frost tune, K&N, ported TB, Blackwing lid, Bellows, MSD, Denso Iridium, and 85mm MAF, Bilsteins, Eibach springs, SLP strut brace, Adj. Panhard, TA Girdle, UMI, Pro 5.0, Nitto NT555
    My wife has a 2004 GTO with the rare SAP, 18" wheels, K&N Cold Air System, MSD, Ported TB, Frost tune, Denso Iridium, Flowmaster cat-back, 3200 Yank, 75k

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    I never worried much about load rating. Start with the recommended pressure and then keep an eye on how the tires are wearing. Adjust the pressure up or down as needed to keep the wear uniform across the face of the tread.

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    Thank you all, but I just happened to spot an 02 yesterday in a parking lot. I found the owner and he let me take a pic of his sticker. I have what I need now.

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    Your dealership guy konigandy6's Avatar
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    Just for the threads sake, what were the manufacturer recommended specs?

    2008 Z06 - Velocity Yellow - OEM

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    2002 Z06 - Electron Blue Metallic - D1 - E85 - 701 rwhp 687 rwtq **sold**

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    Here's why I was asking;
    Stock tires on am 02 Z28 are P245/50 r16. These tires have a load index of 1609lbs at 51psi, cold pressure of 30psi.
    I currently have P245/40 R18 8.5" load index of 1433lbs @ 51psi front, and P275/35 R18 9.5" load index of 1521lbs @ 51psi rear. Since my tires have a lower load index than stock, they require a higher air pressure. Also, my fronts have a lower load index than my rears so I need more air in the front.
    02 Camaro GVWR is 4199lbs. Divided that by 4, means each tire supports 1050lbs. Take that amount; 1050 divided by front load rating 1050/1433 = 73.3% of max load. Take 73.3% of max pressure (51psi) gives me a front *operating* pressure of 37psi. Same formula for rear 1050/1521 =69% of max load. 69% of 51 is a rear *operating* pressure of 35psi. PSI will rise by about 3 during normal operating, so my cold pressures should be 34 front 32 rear.
    If you use the same formula for stock tires, you get an operating psi of 33, and a cold pressure of 30. And 30psi is what is printed on the sticker......

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    Quote Originally Posted by konigandy6 View Post
    Just for the threads sake, what were the manufacturer recommended specs?
    The answer was in the post that the forum nazi didn't approve. Why the hell should I bother with this site if my posts don't get put up?

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    Your dealership guy konigandy6's Avatar
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    Quote Originally Posted by Zappacostta View Post
    The answer was in the post that the forum nazi didn't approve. Why the hell should I bother with this site if my posts don't get put up?
    Fixed

    I apologize. It happens sometimes to members with less than 10 post count, it's Vbulletin's security trying to weed out spam. Please be patient, and if any issues like this come up again, feel free to PM me and I will look into it immediately.
    Last edited by konigandy6; 07-03-2015 at 07:47 AM.

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    ^^ This - due to site security settings there will sometimes be an automatically moderated post that slips by us. There are no "forum Nazis" on this site. We are a very friendly bunch.

    You may always PM or email me if you have a question or concern regarding this site.

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