Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Performance and Technical chat

LinkBack Thread Tools Display Modes
Old 09-13-2017, 02:34 PM   #1
Registered User
Join Date: Sep 2014
Posts: 7
Tyres consumption

Gents. ,
This is the third year I own a 2000 Boxster S, very happy with that. I'd like to get comments on the following:
Rear tyres, Pirelli PZero completely gone in 8000 km but remaining thread same thickness all over the area;

Front tyres , inner side consumption much more than outer side on both left and right wheel.

Is it normal in your opinion?

Inviato dal mio UMI eMAX utilizzando Tapatalk
MikeDelta is offline   Reply With Quote
Old 09-13-2017, 05:38 PM   #2
Artist, 986S tinkerer
NewArt's Avatar
Join Date: Aug 2013
Location: Montreal, Canada
Posts: 1,569
Alignment and driving style are the main reasons for abnormal tire wear. If you're drifting, case closed. Otherwise, when was your alignment done? If recent, what are the specs?
2004 986 S
987 air intake TB and plenum, Mantissport 2 litre sump, UDP, Bilstein B6 with H&R lowering spings, re71-rs for track, other stuff.
NewArt is offline   Reply With Quote
Old 09-13-2017, 10:07 PM   #3
Certified Boxster Addict
Join Date: Nov 2010
Location: Los Angeles
Posts: 7,497
Reduce your drag racing in a straight line and spend more time cornering aggressively and you will have more even wear and longer lasting tires.

As NewArt suggested, have the front alignment checked. The front tires are set from the factory with slight negative camber (static) to improve dynamic handling (when the suspension is compressed during cornering, the wheel will straighten up and be flat to the road surface to maximize grip rather than roll onto the outer portion of the tire if there was no negative camber (which would be reduced grip). The static negative camber setting from the factory can wear the insides of the tires more than the outer portions if you drive mostly highway miles or rarely corner aggressively. This situation can be exacerbated if the previous owner had the alignment set to maximize negative camber in order to maximize cornering ability. An alignment shop can reduce the amount of negative camber to provide more even tire wear at the expense of cornering grip.

8000 Km/5000 miles from a set of rear tires is an indication that you like to use the throttle. This number of miles is fairly normal for a set of rear tires on a sports car.
1999 996 C2 - sold - bought back - sold for more
1997 Spec Boxster BSR #254
1979 911 SC
POC Licensed DE/TT Instructor
thstone is online now   Reply With Quote
Old 09-14-2017, 12:49 PM   #4
Registered User
Join Date: Aug 2005
Location: Sanford NC
Posts: 2,335
Sedately driven and with a low wear biased alignment I got 15k miles before mine aged out. They wore evenly and had legal tread when I retired them. They weren't particularly high wear rated tires.

So it is all in the driving style and the alignment.

Last edited by mikefocke; 09-14-2017 at 05:26 PM.
mikefocke is offline   Reply With Quote
Old 09-14-2017, 01:27 PM   #5
Registered User
Join Date: Sep 2014
Posts: 7
Thanks, I understand the meaning of negative camber. I moved from Pirelli to Toyo in rear and I'll change the front ones too.

Inviato dal mio UMI eMAX utilizzando Tapatalk
MikeDelta is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -8. The time now is 04:28 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page