Jump to content

The RennTech.org community is Member supported!  Please consider an ANNUAL donation to help keep this site operating.
Click here to Donate

Welcome to RennTech.org Community, Guest

There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.

Here are some of the features available - once you register at RennTech.org

  • View Classified Ads
  • DIY Tutorials
  • Porsche TSB Listings (limited)
  • VIN Decoder
  • Special Offers
  • OBD II P-Codes
  • Paint Codes
  • Registry
  • Videos System
  • View Reviews
  • and get rid of this welcome message

It takes just a few minutes to register, and it's FREE

Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)

  • No ads - advertisements are removed
  • Access the Contributors Only Forum
  • Contributing Members Only Downloads
  • Send attachments with PMs
  • All image/file storage limits are substantially increased for all Contributing Members
  • Option Codes Lookup
  • VIN Option Lookups (limited)

Recommended Posts

Hi, I am in need of a pair of rear tyres for my 06 boxster. At the moment I have 265/40/18 on the rear, I was wondering what difference it would make replacing them with 265/35/18 rather than the 40 as there are a wider selciection of 35's available. Also I was wondering what people thought where the best tyres to purchase for the rear? Thanks

Link to post
Share on other sites
    You can remove these ads by becoming a Contributing Member.

  • Admin

Yes there are many threads on tires.

You potential problem comes in changing the overall diameter of the tire. Porsche recommends staying within 5% of the Porsche spec. Failure to do so will cause problems with PSM and ABS systems - not to mention potential handling issues.

Have a look at Porsche's 'Approved' Tires list:

http://www.renntech.org/forums/index.php?/files/file/1627-approved-summer-tireswheels-current-cars/

Link to post
Share on other sites

Have a look at Porsche's 'Approved' Tires list:

http://www.renntech....s-current-cars/

Regarding "N-spec" tires, any idea of the number/make of tires that Porsche tests and rejects? Do only certain brands submit tires to Prosche for testing and what exactly do those tests consist of? I'd really like to understand exactly what goes into getting a tire "N-spec'ed."

Jason

Link to post
Share on other sites
  • Admin

Have a look at Porsche's 'Approved' Tires list:

http://www.renntech....s-current-cars/

Regarding "N-spec" tires, any idea of the number/make of tires that Porsche tests and rejects? Do only certain brands submit tires to Prosche for testing and what exactly do those tests consist of? I'd really like to understand exactly what goes into getting a tire "N-spec'ed."

Jason

Tires_Porsche_N_spec.pdf

  • Upvote 1
Link to post
Share on other sites

M, my local tyre dealer here in the US suggested for our 98 986 the Yokohama Advan S-4 for both the front and rear. To date they have been an excellent all year all around tyre. Good tyre wear and good in most all conditions...except I dont drive it in the snow...but good in hot and cold and in between.

Good luck

Link to post
Share on other sites

Thanks for the information, Loren. I still wonder, though, how how many tires are tested and then rejected and which companies do not submit tires to Porsche for testing (if it works that way). I just bought a set of Goodyear Eagle F1 Asymmetrics and from what I've read they are very similar to the often vaunted Michelin PS2s but are not N-spec. I wonder if they were tested and rejected or just not tested? I guess I'll never know. :-)

Jason

Edited by jfoxny
Link to post
Share on other sites

I have been very impressed with the Michelin Pilot Sport PS2. With that said, why not trust that "N" and go with the approved. For me, it's a peace of mind. (Spending a few more bucks for the "N" comes with the territories of Porsche driving, unfortunately.)

Thanks for the information, Loren. I still wonder, though, how how many tires are tested and then rejected and which companies do not submit tires to Porsche for testing (if it works that way). I just bought a set of Goodyear Eagle F1 Asymmetrics and from what I've read they are very similar to the often vaunted Michelin PS2s but are not N-spec. I wonder if they were tested and rejected or just not tested? I guess I'll never know. :-)

Jason

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.