Might be too late for this... if you had caught this earlier could you have remounted the left tire onto the right rim and vica/versa to get more life out of them? I suppose it would depend on mount/balance costs.

 

I've done that in the past. The only guy I trust with my wheels is an hour from me, plus only does it on Saturdays. Run out of hours in the day...then boom...to late.

 

the tires should be wearing near perfect with only a minor indicator of the inside. Re-align the car.

 

cool. What alignment?

 

Any updates since? I'm contemplating changing out some rear suspension components to fix a similar wear pattern and mileage.

 

Unless the rear suspension components are worn out or you just want to replace them the tire wear is not due to components but to the component alignment.

Rear toe is set too aggressively. I don't have my Turbo's alignment data sheets handy but when I took the car in to have it aligned I asked the dealer Porsche tech to center the steering wheel and give the car an alignment that would result in even rear tire wear without compromising the car's road manners and stability at speed.

Every time the tech obliged me and afterwards it was not uncommon to get 20K+ miles from a set of rear tires on my Turbo (about the same number of miles I managed from rear tires on my Boxster) with tread wear even across the entire tread face. Might add this was not just some super talented tech. A number of different techs, good, experienced techs I might add, over the years aligned my car and each was able to deliver the same proper alignment.

 

 

With H&Rs you generally need adjustable toe rods or the eccentric toe rod bushings to be able to get both toe and camber in adjustment. Otherwise you end up with too much camber or (correction) too much toe in. Adjustable LCAs will also fix it but cost more.

 

Am i thinking correctly that I don't have much farther that I can raise up the car?

 

Yes - It looks like you have nowhere to go.

 

 

My experience at least with my Boxster is tire wear is unaffected by camber, well, a reasonable amount of too much camber. When I had the car aligned -- at a very highly regarded indy alignment shop -- the rear tires ended up with a bit more than the normal camber. The reading wasn't in the red but it was at the very top of the allowed camber. I was concerned about the effect this might have on tire wear but I was assured it would not affect it one bit. I had my doubts but left. However, what I was told proved to be right. Tire wear was just fine and the car's road manners were also just fine.

If one can follow a Porsche he can see that once underway the rear wheels/tires straighten up and the tires are in full contact with the pavement. It is the toe which can cause the rear tires assume a position underway that leads to the inner edges wearing.

 

Put a coil-over spacer between the bottom of the spring and the spanner nuts.
http://www.colemanracing.com/Coil-Ov...cer-P4174.aspx
As far as the tire wear, the rear toe is off. Camber, even a LOT of negative, won't wear the tires that much, or that quickly. Also, on the lowered cars, the bump steer does wacky things near the end of the suspension's travel, so it needs to at least be checked (or return the car closer to the stock ride height).
I should probably do a tutorial on checking and adjusting bump steer. It was a weekly check on our Tour Cars.
As for addressing the problem before it gets that bad, keep an eye on tire wear with an accurate tread wear gauge.

The tread depth gauge, tire durometer, and an infrared pyrometer were used religiously every time the car hit the track.

 

As an update again....tires wear perfect! Still no adjustable toe links either .. So...don't worry about those 19s. Fake news.

 

Awesome! Do you happen to remember what your alignment specs are?