Was up at Summit point yesterday having a ball instructing for the BMW CCA. This morning, got up early to head for day two. On the road my tire monitor lit up and showed the air in the right rear RAPIDLY going down to zero.
Had to park on the side of the road and I called Porsche. They sent a guy in a very hightech wrecker who took great pains to get the car loaded into his enclosed wrecker/rollback. Left the car at Porsche of Arlington as they aren't opened on Sundays.

The thing is I NEVER had a tire go flat as quickly. Also, never had one go to zero PSI either.
The tires are the Pirelli P-Zero Corsa's.

Thoughts/Comments??

TIA,
Mr. B

 

Sounds like a split which could cause rapid deflation, rather than a nail. On my last set of PS2's I found a split in the sidewall of one of the rears about 6 inches long. Didn't lose any air before I found it, but could have been bad had it let go.

 

About 3weeks ago on a drive in the mountain area, my right rear had the same. Yellow warning turned to red VERY fast. So fast that once I stopped I could hear the air coming out. From that point it was FlatbedCity for me. (I tried the Porsche repair liquid, which was pointless as the hole was much larger). I think I will carry some of the slime with rubber contents in the future versus a pure liquid.

But long-story-short, it was on the stock MPSCs, and not a fun day at all.

 

Well, my track day on Saturday must have REALLY worn those Pirelli's because the dealership said both rears were showing serious cord, and that's why the right rear suddenly failed. Sounds like your cup tires died the same kind of death.
Anyway, I'm switching to 4 new Michelin Super Sports.

Mr. B

 

Sad part on mine was...... just had new MPSCs put on and aligned the day prior. I made it all of 66.6 miles and that was it. (Yes 66.6 from start of drive on the trip meeter to point of flat...few feet onto flatbed....and rolled into Hennessy Porsche garage). Must have been one monster of a nail or something.

To play out the comical part of 66.6, I suspect I could have poured pure rubber in the valve-stem and it would have still stayed flat, or exploded on 66.7. :-)

 

ah geez the thought of a flat tire on these cars freaks me out.....

Bob 66.6 miles....hmm whats up with that.

agree Mr B a great time to get super sports....

 

THX,
Mr. B

 

I am 400 miles into my Super Sports. Love em', go get em'

 

I'd LOVE to have the SS's on but no 325 rear for mine yet.......

 

Not a bad idea to keep a plug kit in car.

 

True, but it wouldn't have been of any help with tires worn down to cords.
Mr. B

 

Lesson learned, then. You should check your tires, oil, etc after every session, but most people don't. However, you must check those things once per (track) day.

 

Well, you're right, but I never had Pirelli's before this and didn't realize how short-lived they are.
Anyway, my dealership says the Michelin SS tires are NOT
Porsche-approved, but that doesn't seem to bother any of you who have them. Is that correct??
TIA,
Mr. B

 

The Michelin SS will be fine buddy!

 

THX !!
Mr. B