It sure looks like an alignment is in order. I would probably get new tires as well. The old tires will have taken a "set" based upon the bad alignment and will continue reflecting poor handling characteristics. Ask your dealer to match Tire Rack prices. (Hint: TR supplies tires to Porsche dealers.)

 

The rear camber with an asymmetric toe (more than 0.40 deg diff between left and right) will definitely make it difficult to keep the car straight.
Previous owner was probably a tracker (at least a racing wannabe, this setup doesn't look good) and that type of setup is hell on open roads.
My two cents. An alignment will likely fix it.

 

.1 GTS Five lugs or center lock?

 

[QUOTE=desmotesta;17158086]Here is the alignment print out. Almost everything is out of whack. wonder f this is all there is to it

Looks like you found the problem.

Have it aligned to factory spec - there are specific ones for your car/options- at a shop that has a newer Hunter rack.

Then try tire pressures around 32-35.

 

[QUOTE=chuckbdc;17158942]
Do you know if the newer/larger Porsche dealerships have this "Hunter" alignment rack? The local dealership is getting a huge upgrade and my plan was to wait for their grand opening to see if they got new equipment or just a new piece of string.

 

center locks

 

When was the last time the CL were serviced? What about checking torque specs on struts and other upper suspension components?

CL are serviceable, check your manual.

 

things are making so much sense now..

Both the service advisor and the Technician stressed the fact that current alignment seems to be track focused, turns out the previous owner aligned it this way.

This also explains why my current car seemed to be so much more "capable" when pushed on the same familiar back roads (when compared to by previous 991S) even tough both cars have "same" Sport PASM suspension.
And by capable I mean I havnt really gotten anywhere near the limits on the GTS like I was able to with my 991S (even with my lacking skills)

Time for an alignment and new tires. Will keep you all posted

 

i still dont see how having the front toe specs being almost parallel pointing to the right with -0.04 in on one side and the other out +0.10 is a track spec. and then having the rears differ with the left side +0.29 being almost double the right +0.15 (but at least they're both pointing outwards). To me, it just looks like a bad toe alignment that would make the car biased to tramming right. Good luck though! A new alignment should help a lot regardless.

 

Agreed - Toe is really off but it was track focused given how much camber the car has. Either things got out of alignment or it was crap job to begin with. I have a somewhat track-focused alignment (best that can be done without camber plates, etc) and I get very little tramlining. It is very nice on track and on the road but if I don't flog my car, the tires will wear unevenly for sure.

 

get the car aligned right. the rear toe is a mess, get it even per side to spec. get the front with slight toe-in. your camber is not aggressive, likely not the issue. Toe out will make a car feel more darty on turn-in
Rear toe out of spec makes a 911 drive like crap
Inspect tires for odd wear patterns.
this car has no RWS right?

 

Yes the rear asymmetric and out of range toe will cause the car to move around in general, especially on ruts or broken pavement. The cambers being -1 deg more than the nominal spec will also tend to make her rut follow/tramline more than normal as noted above. This alignment has a good chance of having caused uneven tire wear including feathering or cupping of the tread blocks - especially the left rear as well as wearing in the inside edges a bit. And as noted above, 5-6 year Pzero's have often changed substantially from new...without bad alignment.

So if getting the alignment into nominal factory specifications doesn't make the car behave like it should then there is a good chance the tires should be replaced. If it is low in miles it seems unlikely to have a worn suspension part issue as above also said.

 

My dealer does match Tirerack prices without asking.

 

I hope you did an alignment if it was on the rack already? If not, find a new shop. That should have been corrected on the spot. Once you get the alignment done, report back. Alignments do wonders.

 

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