[w0bbles]

Yes this is what I am hearing from others now too. But is it normal for tires to wear down that much in less than 7k miles?

Unfortunately I have staggered wheels/tires, so couldn’t rotate.

This might be a dumb question, and I may already know the answer, but wheel spacers couldn’t possibly cause that, could it?

[feuer]

Originally Posted by w0bbles

Yes this is what I am hearing from others now too. But is it normal for tires to wear down that much in less than 7k miles?
Unfortunately I have staggered wheels/tires, so couldn’t rotate.
This might be a dumb question, and I may already know the answer, but wheel spacers couldn’t possibly cause that, could it?

These are mine rear tires. 140tw. 5k miles. 4 track days. -2.5 camber. 0.05 toe. All rear components except shocks have around 100k and are 10y old. So if you want your rear tires to last little longer go with the numbers I suggested.

[bbnks2]

Originally Posted by w0bbles

Yes this is what I am hearing from others now too. But is it normal for tires to wear down that much in less than 7k miles?

Unfortunately I have staggered wheels/tires, so couldn’t rotate.

This might be a dumb question, and I may already know the answer, but wheel spacers couldn’t possibly cause that, could it?

7k miles seems a bit quick... Really depends on your driving. Someone said the alignment sheet is a few years old (2009) the tires aren't?

I beat the crap out of my car and I kill a set of tires every summer. About 7k miles is about right for me. Lots of tire spin. Constant 1/2 pulls and spinning around corners. If that's not what youre doing then 7k is pretty premature and something else might be up. Someone else on here was in the same situation and it turned out a subsequent alihment showed their toe fell way out of spec...

I personally am at .15* toe-in per side out back. I did not like less toe-in... the rear was too loose. -2.5* camber is also a bit high. I am right at the wear bars of z224 40tw tires with 2.0* camber... No need for more in my case.

[feuer]

Originally Posted by bbnks2

7k miles seems a bit quick... Really depends on your driving. Someone said the alignment sheet is a few years old (2009) the tires aren't?

I beat the crap out of my car and I kill a set of tires every summer. About 7k miles is about right for me. Lots of tire spin. Constant 1/2 pulls and spinning around corners. If that's not what youre doing then 7k is pretty premature and something else might be up. Someone else on here was in the same situation and it turned out a subsequent alihment showed their toe fell way out of spec...

I personally am at .15* toe-in per side out back. I did not like less toe-in... the rear was too loose. -2.5* camber is also a bit high. I am right at the wear bars of z224 40tw tires with 2.0* camber... No need for more in my case.

Alignment sheet shows the rear at 0.20 toe out. When you have toe out at 0.20 and RWD vehicle starts traveling forward under load the bushings will deflect and you end up with maybe 0.30 toe out and worn out tires. Your rear wheels are toe in. Front are toe out. That is how you get you car to turn/rotate in corners. I go through two sets of tires from April to October. The rest I'm on a winter set. Often I do my own alignments. Either at my old job or at home with ropes. Isn't a contest, please don't get me wrong, but is he wants to have longer lasting rear tires the rear wheels need to be as parallel to each other as possible.

[bbnks2]

Originally Posted by feuer

Alignment sheet shows the rear at 0.20 toe out. When you have toe out at 0.20 and RWD vehicle starts traveling forward under load the bushings will deflect and you end up with maybe 0.30 toe out and worn out tires. Your rear wheels are toe in. Front are toe out. That is how you get you car to turn/rotate in corners. I go through two sets of tires from April to October. The rest I'm on a winter set. Often I do my own alignments. Either at my old job or at home with ropes. Isn't a contest, please don't get me wrong, but is he wants to have longer lasting rear tires the rear wheels need to be as parallel to each other as possible.

I see -1.6* camber and .19* toe-in, but I couldve missed something. Also, the sheet is from 2009 so who knows if that is his actual alignment.

[feuer]

Originally Posted by bbnks2

I see -1.6* camber and .19* toe-in, but I couldve missed something. Also, the sheet is from 2009 so who knows if that is his actual alignment.

Toe in/out in direction of travel. So yes, rear 0.19 toe-in but if he is driving in reverse. Since he is traveling forward most often and wheels are pointing out rear tires get excessive wear on the inside as the inside is scrubbing off as is rotating forward.

[bbnks2]

Originally Posted by feuer

Toe in/out in direction of travel. So yes, rear 0.19 toe-in but if he is driving in reverse. Since he is traveling forward most often and wheels are pointing out rear tires get excessive wear on the inside as the inside is scrubbing off as is rotating forward.

They are not pointing out. They are toed in. Positive toe is toe-in.

The alignment sheet looks fine... But, it's from 2009 lol...