Go Back   986 Forum - The Community for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Boxster General Discussions

Post Reply
 
LinkBack Thread Tools Display Modes
Old 08-26-2012, 02:02 PM   #1
Registered User
 
Idaho Red Rocket 3's Avatar
 
Join Date: Oct 2010
Location: Nampa, ID.
Posts: 488
Camber ????

On my 2K S all 4 of my tires are worn out or close to being worn out just on the inside edge. Still have half tread depth remaining on the front tires and about quarter tread depth on rear tires. The front left tire inside edge is worn the most of the 4. The alignment is set to factory spec. I am thinking of changing the camber by reducing it by a half degree or a full degree. Will this change give more even tire wear without significantly sacrificing cornering ? What do you all think ? Tire techies and racers please lay it out for all of us to consider.



__________________
2000 Boxster S
And then there are the Motorcycles.
Idaho Red Rocket 3 is offline   Reply With Quote
Old 08-26-2012, 02:18 PM   #2
Registered User
 
Bruce Wayne's Avatar
 
Join Date: Sep 2010
Location: UK
Posts: 303
Garage
hmmm. have you been to another alignment place?


if you have half the tread depth left on one part of the tyre and worn at the edges, i would figure that the alignment is not set up correctly.
__________________
986 x2 6sp
2x Range Rover Vogue 4.6
2004 MX5 Sport 6speed Strato Blue (wifelet)
2x Range Rover Classic & CSK

Last edited by Bruce Wayne; 08-27-2012 at 04:37 AM.
Bruce Wayne is offline   Reply With Quote
Old 08-26-2012, 02:25 PM   #3
Registered User
 
Join Date: May 2011
Location: Miami florida
Posts: 1,591
I'm not so sure its the camber that is causing the wear on the inside edge. I think toe is probably more the cause, or possibly the interaction between camber and more toe. I just scrubbed my rears after a supposed track alignment. The guy put in more rear toe than before and the rears scrubbed to the wear limit on the street within a couple of thousand miles.

Next time I'm going to try to get as little toe, front and rear to see if it makes a difference.
__________________
Current car

2000 Boxster 2.7l red/black

Previous cars

1973 Opel Manta
1969(?) Fiat 850 Convertible
1979 Lancia Beta Coupe
1981 Alfa Romeo GTV 6
1985 Alfa Romeo Graduate
1985 Porsche 944
1989 Porsche 944
1981 Triumph TR7
1989 (?) Alfa Romeo Milano
1993 Saab 9000
san rensho is offline   Reply With Quote
Old 08-26-2012, 04:21 PM   #4
Rennzenn
 
j.fro's Avatar
 
Join Date: Feb 2005
Location: Virginia
Posts: 1,369
Garage
+1 on checking toe in.
j.fro is offline   Reply With Quote
Old 08-26-2012, 06:56 PM   #5
Track rat
 
Topless's Avatar
 
Join Date: Nov 2006
Location: Southern ID
Posts: 3,701
Garage
Toe is the problem, not camber.
__________________
2009 Cayman 2.9L PDK (with a few tweaks)
PCA-GPX Chief Driving Instructor-Ret.
Topless is offline   Reply With Quote
Old 08-27-2012, 01:01 PM   #6
SPB racer
 
Join Date: Feb 2011
Location: San Antonio TX
Posts: 252
Garage
Im thinking the same as What everybody else said. Have it aligned as a first step.

However, You did say hat it was set to factory settings. How sure are you that that is true? When was the car last aligned? Do you have a copy of the read out?

Finally, Do you drive almost exclusively on freeways at high speed and very few high G corners?

Last edited by Jittsl; 08-27-2012 at 08:13 PM.
Jittsl is offline   Reply With Quote
Old 08-27-2012, 02:38 PM   #7
Registered User
 
LAP1DOUG's Avatar
 
Join Date: Aug 2011
Location: USA
Posts: 414
In my expeience, it takes a lot of negative camber to really affect tire wear. Something like -3.5 degrees or more, which is way more than you could possibly get with stock suspension. Just a little toe though does have a big effect on tire wear.

I agree with others 99.9% probability that you have toe issues. Check all those rubber bushings too.
__________________
Kippis

986S
991S
Van Diemen RF97
LAP1DOUG is offline   Reply With Quote
Old 08-28-2012, 11:16 AM   #8
Certified Boxster Addict
 
Join Date: Nov 2010
Location: Los Angeles
Posts: 7,669
I will venture to say that its both camber and toe. The stock negative camber alignment will wear the inside 1/3 of the tires more than the outside 1/3 and then adding toe just exacerbates the wear.

Yes, you can go to a zero camber and zero toe alignment but cornering performance will suffer.

__________________
1999 996 C2 - sold - bought back - sold for more
1997 Spec Boxster BSR #254
1979 911 SC
POC Licensed DE/TT Instructor
thstone is offline   Reply With Quote
Post Reply


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 06:02 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2024 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page