ivangene

while I agree with the second 1/2 of this - I have yet to get 15-18k out of a set of tires...maybe 10!

and OP - your comment about driving like it should be...you know that means turning the wheel and having the weight off center - ALOT! right

I am wearing out my tires on the outside edges with as much camber as I can muster out of the stock suspension (even on street )

hotelguy

my fronts are good, but my rears are wearing out in the middle, P zeros...that came on it when I purchased it a few months ago. Any ideas? new P car owner

One Nut

I love trying to drift this thing but she is not happy that way. In my vett ton's more power & torque she steps out at will its fun in either always done in a safe way ofcourse

KrazyK

Is there any advantage to having a little more postive camber to help on the tire wear? Not tracking the car.

ivangene

buy a Camary if tire wear is your priority

Porsche's like rubber....they like good rubber, and they chew it up and spit it out, and ask for more - buy good sticky tires and smile each time you replace them knowing how fun your car is and knowing you are NOT getting 20-50k miles out of a set of boring a$$ tires on a boring a$$ car

I went through 8 tires last year - and I smiled my a$$ off!!

ivangene

OH - you can flip some tires on the rims...I do that with my R888's evens out the wear - not all tires can be flipped

Macster

Actually wear concentrated in the center is normal.

I do not know why.

At first with my Boxster I thought the tires were over inflated but over time I found that reducing the tire pressure didn't seem to matter.

Then I thought the tires were under inflated and growing at high speed.

Well, again over time I found a few psi higher didn't make a difference.

The tires just wear in the center first, though not real bad. Noticeable but not excessive.

If the car is driven aggressively on the street the right rear tire -- USA cars anyhow -- can wear faster. This is from lack of LSD which allows the inner less loaded tire to spin under sharp right turns with throttle.

The important thing is the tires wear evenly at their inner and outer edges.

This is a toe adjustment issue not camber. Get behind another Porsche and watch the rear tires as the car goes down the road. The tires are flat on the ground, the camber is almost gone.

At the end of one alignment the alignment shop (Custom Alignment) in Mountain View told me my Boxster rear tires had a lot of camber but it was not out of spec, just at the max. alllowed. I asked about the effect this would have on tire wear -- I was having the car aligned because new tires had just been installed -- and was told there would be no compromise in tire life nor in the car's feel or handling.

Having my doubts I agreed to accept the car with the excessive camber and found over the miles the shop was right.

alpine003

There is a common misconception that negative camber is the main culprit in causing inner tire when in fact having negative toe can increase more tire wear on the insides.

You'll definitely want to retain negative camber or what is at least specified by the factory to retain good grip levels or you might as well be driving a Camry.

Negative toe is generally synonymous with camber since the lower your car is the more negative camber and toe your car will have. Fortunately for our cars, there are adjustable toe links available to dial out some toe if one is lowered beyond a certain point to correct this.

jml8785

I have to agree, toe is MUCH more influential on tire wear than camber.

Byprodriver

Most likely cause is rear tire psi set at factory spec (44?) & car is normally driven with minimum load of driver only & no luggage. If this is the case try setting 4psi lower, makes a big improvement in comfort too.
Also wear could be caused by previous owner "jackrabbit" starts from stopped.

hotelguy

thanks for all the good info

ltusler

is the correct answer!!

KrazyK

Or you can save your tires by driving less. Why DD with expensive tires? Save the tread for fun driving.

perryinva

No one noticed the OP got 23k miles out of an older set of PS2s? That's awesome! They are only rated for 15k miles when staggered sizes. Nice alignment for sure! I hope mine go that long!

Quadcammer

I was about to say, the man was just due.