Advice or Feedback regarding wear

[bdsdnfam]

Hello,

This is the 2nd set of Pzero's on my 2011 SS/RS. First set lasted 21,279 miles and had some tread left. These have 5,400 miles on them and left me stranded last night! Both sides are the same. When I had this second set put on last April I also had a 4 wheel alignment.

Thoughts?

[68rssscamaro]

There is only 5k miles on them? If that is so you got to stop doing those smoke shows! Did they give you a print out from the alignment machine to where everything was set?

[bdsdnfam]

LOL. I don't baby the car but don't drive it any differently than the first set that lasted 21K. No document or printout regarding the alignment. Used a company up here in the Mpls area though that has a stellar reputation and highly recommended.

[yellow69z28rs]

You definitely need to add some camber.

[Dizzy82]

Don't waste your money on Pzeros, there are far better tires out there.

[havelegs]

Looks like a good alignment.

[bdsdnfam]

Seriously or you kidding with me? I don't know myself. I had it aligned last April after the new tires. Had a company that specializes in muscle cars. But that said......

[mustang50lx]

Many cars today call for a bunch of negative camber. When we run into tire wear like this at work we put them as close to zero as the specs allow. As the cars get older they tend to get more negative camber just from the springs settling down too.

[Snoman]

Pictures clearly indicate driver error. If you believe otherwise, talk to the shop that sold/installed them whom will happily work with you to diagnose the problem and provide a working solution.

[bdsdnfam]

Driver Error? Like I made a mistake in how I drove the car? Is there something I'm not doing right after 39 years of driving? I've had the car for 5 years and have been driving it the same way for 5 years. Can you elaborate on the driver error comment?

[Snoman]

Originally Posted by bdsdnfam

Driver Error? Like I made a mistake in how I drove the car? Is there something I'm not doing right after 39 years of driving? I've had the car for 5 years and have been driving it the same way for 5 years. Can you elaborate on the driver error comment?

What exactly shall I comment on? The definition of "driver error" or the fact you seem to be offended by it?

There are two possibilities to how a tire is damaged like the pictures you posted. It's either A or it's B, like two sides to a coin and it's simple statistics, these are two possibilities for causing such a result in a tire and only two possibilities;

A) Driver error: One or more drivers of the vehicle performed one or multiple occurrences of the following; burn out, skid, drifting, driving off road or other similar action

B) Not driver error: I believe you stated this is your case? Interesting to say the least, however as I previously stated; This discussion should be with the manufacture or shop that sold you the tire and/or the shop that put them on your vehicle.

Are you looking for some sort of internet mechanical proof theory to how this happened after talking to Discount Tire (or other shop)? I know of none.

I personally joked with Classic in Dallas about replacing my tire due to normal tread wear and they joked about throwing me out of the shop.

What exactly did your shop tell you and are they not working with you to replace the set?

Edit: Are you the only person/human/body with access to the vehicle ? No one "borrowed" the car without your knowledge for a joy ride? Ever see the movie Ferris Bueller's Day off? Might not have been you personally, but you asked for 'thoughts'.

[68rssscamaro]

[Avalnch]

OP, your tire wear is indicative of a negative camber alignment that is driven way too hard in a straight line (aka doing lots of burn outs). There can be no other reason to why you have only worn the inside edge of your rear tires down to the cord.

If I was your shop and you brought these tire back to me, I would gladly sell you another set and wait for your return 5000 miles later.

[bdsdnfam]

First, thank you Mr. Webster for your definitions of "Not Driver Error" and "Driver Error" I Googled them earlier and what was officially noted was nothing close to your theories. But sorry to debunk your theory (or facts based on little to no intelligence) but the issue was a faulty alignment. For those that provided feedback (constructive), thank you. Here is what they found:

Before Camber (both sides): -1.1 degree After: -.7 degree
Before Toe (both sides): -.77 & - .54 degree After: .12 degree
Before Total Toe: -1.31 degree After: .25 degree
Before Thrust Angle: -.12 degree After: .01 degree

Car runs and tracks beautiful. The shop that performed the screwed up alignment was a referral from my Camaro Club. Obviously will be rethinking that!! Like I said, I drive it like I own it but (and doesn't matter who believes me) I don't do a lot of burn outs nor do I mistreat the car. As I mentioned in the first post the first set of tires gave me 21,000miles. Thank you AvaInch for your feedback. Spot on with the camber!!