Rear End Instability?

[Gilles]

Originally Posted by Flavor 987S

I guess I am wrong about OEM tire pressures for an 986. On my 987S with 19" inch wheels, OEM spec's are 34F/37R. I tend to run about 1 PSI lower than spec. Michellin PS2's.
Did not realize front tires pressures are so low (30 PSI) on a 986.

Flavor, also on the 987S w/19's
I found out that running about -1 on the rears (34/36) the tires wear more evenly, otherwise the rears will wear too quickly on the inside.

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[Flavor 987S]

Originally Posted by Gilles

Flavor, also on the 987S w/19's
I found out that running about -1 on the rears (34/36) the tires wear more evenly, otherwise the rears will wear too quickly on the inside.

.

I've gotten great tire wear on the Boxster. My first set of OEM Pilot Sports lasted 20,000 miles. The PS2's look to do about the same. Now, the 911 Turbo eats tires. I'm lucky to get 12,000 miles. Same driving style....lots of highway with spirited sprints on country roads. Not complaining.