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

Post Reply
 
LinkBack Thread Tools Display Modes
Old 09-12-2011, 10:45 AM   #1
Registered User
 
truegearhead's Avatar
 
Join Date: Jul 2011
Location: Richmond, VA (The Fan)
Posts: 978
Plus size 17" rear tires?

Is anyone running wider tires then stock on there 17" twist wheels? I''d like to go to a 265 or something but I don't want to rub.
__________________
1997 Boxster 4.2L Audi V8 Bi-Turbo
2003 911 C2
NASA HPDE Instructor
truegearhead is offline   Reply With Quote
Old 09-12-2011, 11:16 AM   #2
Registered User
 
Join Date: Nov 2006
Location: In the garage...
Posts: 1,732
I guess the first question would be why? Great deal on tires? Look? or???

Plus sizing in front helps reduce understeer... plus sizing rears will increase understeer (not a desirable thing).

To answer your question though, I don't recall knowing anyone who plus sized the rears for everyday driving. Maybe all around (along w/ fronts) but not rears alone.

Burg Boxster is offline   Reply With Quote
Old 09-12-2011, 11:38 AM   #3
Registered User
 
DenverSteve's Avatar
 
Join Date: Jul 2011
Location: Denver/Winter Park, CO USA
Posts: 600
Plus sizing generally has more negatives than positives. If you want wider, get new wheels and tires. Otherwise you'll likely spend more money in the long run by wearing out your tires quicker on the stock wheels.
__________________
Denver Steve
Carrera, Cabriolet, 6-Speed, Black/Tan
DenverSteve is offline   Reply With Quote
Old 09-12-2011, 12:00 PM   #4
Registered User
 
Join Date: Apr 2008
Location: Southern New jersey
Posts: 1,054
The tire manufacturer will list the recommended wheel widths for a given tire size. I would stay within this range. Whether they rub or not will depend on your wheel offset.
stephen wilson is offline   Reply With Quote
Old 09-12-2011, 12:39 PM   #5
Pat
Registered User
 
Join Date: Jun 2007
Location: Littleton, CO
Posts: 456
Quote:
Originally Posted by DenverSteve
Plus sizing generally has more negatives than positives. If you want wider, get new wheels and tires. Otherwise you'll likely spend more money in the long run by wearing out your tires quicker on the stock wheels.
Why would they wear quicker?
__________________
"Of all the extreme sports I've ever participated in- windsurfing, kite boarding, wake boarding, tow-in surfing and snowboarding- skiing, for me, made everything else easy."
-Chuck Patterson
Pat is offline   Reply With Quote
Old 09-12-2011, 03:06 PM   #6
Registered User
 
truegearhead's Avatar
 
Join Date: Jul 2011
Location: Richmond, VA (The Fan)
Posts: 978
Wow, I underestimated you all's sensibility. I'll let you know how it goes.
__________________
1997 Boxster 4.2L Audi V8 Bi-Turbo
2003 911 C2
NASA HPDE Instructor
truegearhead is offline   Reply With Quote
Old 09-12-2011, 03:28 PM   #7
Registered User
 
DenverSteve's Avatar
 
Join Date: Jul 2011
Location: Denver/Winter Park, CO USA
Posts: 600
Quote:
Originally Posted by Pat
Why would they wear quicker?
Tires will cup or bulge if they are too wide or narrow for a wheel. As stated above, tire/wheel sizes are optimized and some deviation is acceptable too much will cause too rapid, and or, uneven wear. Both of which prematurely wear the tires and effect handling.
__________________
Denver Steve
Carrera, Cabriolet, 6-Speed, Black/Tan
DenverSteve is offline   Reply With Quote
Old 09-12-2011, 03:35 PM   #8
Pat
Registered User
 
Join Date: Jun 2007
Location: Littleton, CO
Posts: 456
I agree 100% with that, Steve. However adding just 2 cm to the section width shouldn't be too big of a difference, should it? I realize it may not be ideal, but I doubt it'll really wear that unevenly assuming proper pressure and alignment.
http://www.tirerack.com/tires/tiretech/techpage.jsp?techid=198
__________________
"Of all the extreme sports I've ever participated in- windsurfing, kite boarding, wake boarding, tow-in surfing and snowboarding- skiing, for me, made everything else easy."
-Chuck Patterson
Pat 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 01:15 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2025, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2025 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page