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PostPosted: Sun Jan 31, 2010 1:18 pm    Post subject: Porsche 'N' Rated Tyres Explained and options Reply with quote

Porsche information leaflet explaining the N-Spec approved tyres:

Design and Testing
Porsche designs and manufactures some of the highest performance vehicles in the world. Because of the essential role that tyres play in vehicle performance, Porsche has integrated tyres in the design process throughout vehicle development. Porsche original equipment tyres must successfully pass the tyre company’s laboratory tests, road tests and race track evaluations to confirm that the prototype tyres meet Porsche’s noise, hydroplaning, handling and high-speed durability requirements. Only upon successful completion of these tests, will tyres be released for production.

Branded as N-Spec
Production tyres that have passed all of the tests and received Porsche’s engineering department’s release can be branded with an N-specification. The N-specification brandings include: N-0 (N-zero), N-1, N-2, N-3, N-4, N-5 or N-6.

These markings on a tyre’s sidewall clearly and permanently identify them as approved by Porsche for their vehicles. The N-0 marking is assigned to the first approved version of a tyre design. As that design is refined externally or internally, the later significant evolutions will result in a new generation of the tyre to be branded with N-1, N-2, N-3, etc., in succession. When a completely new tyre design is approved, it receives the N-0 branding and the succession begins again.

Replacing N-Spec Tyres
If a vehicle was originally delivered with N-specification tyres that have been discontinued and are no longer available, it is recommended to replace all four tyres to a higher numeric N-specification design appropriate for that vehicle. In case of tyre damage such as cuts, punctures, cracks or sidewall bulges that cause a single tyre to be replaced for safety reasons, the remaining matching tyre on that axle must not exceed 30 percent wear. If the remaining tyre has more than 30 percent wear from new, it should also be replaced. This rule applies to all four tyres on all wheel drive vehicles. Handling inconsistencies may result if this is not done.

Mixing N-Spec Tyres
Use only tyre types tested by Porsche. Only tyres with the same manufacturer and with the same specification code (e.g. "N0", "N1" …) should be mounted on the vehicle. Tyres should be replaced no less than in pairs on one axle at a time. Only tyres of the same tyre make and type must be used. Since many Porsche vehicles are fitted with different sized tyres on their front and rear axles, this requires matching the tyre brand, tyre name and N-specification front to rear.

While the tyre manufacturers may also build other tyres featuring the same name, size and speed rating as the N-specification tyres for non-Porsche applications, these tyres may not be branded with the Porsche N-specification because they do not share the same internal construction and/or tread compound ingredients as the N-specification tyres.

Running-in of New Tyres
Initially, new tyres do not offer their full traction. Drivers should therefore drive at moderate speeds during the first 60-100 miles (100-200 km). If new tyres are installed on only one axle, a noticeable change in handling occurs due to the different tread depth of the other tyres. This happens especially if only rear tyres are replaced. However, this condition disappears as new tyres are broken in. Drivers should adjust their driving style accordingly.

Tyre Aging
Additionally, even though only the world’s highest performance tyres can earn the Porsche N-Spec approval, eventually all tyres will either wear out or age out. The chemical additives that make rubber elastic lose their effectiveness in the course of time and the rubber becomes brittle and cracks. Considering the performance capabilities of a Porsche, under no circumstances should tyres older than 6 years be used. Porsche dealers can recommend the most current replacement tyre options for your vehicle.

Tyre Selected for a Porsche N rated status?
The tyres selected for a Porsche are chosen based on the model (sports car or SUV)‚ and the job the tyres are asked to do. The 997, 996, Boxster and Cayman S are examples of the world’s finest exotic performance cars with some of the same capabilities found in previous generations of race cars.

For these vehicles Porsche selects Maximum Ultra High Performance Summer tyres from the world's leading tyre manufacturers: Bridgestone, Continental, Michelin, Pirelli and Yokohama.


Porsche OPC's assist in ensuring you have the correct Performance Tyres
Decades of engineering excellence and racing heritage are designed into each Porsche vehicle. All the technology and innovation has to work through the four small contact patches that allow the performance potential to be realised. Many vehicle owners forget these four critical performance points are so important to their driving expectations, pleasure and safety.

Your Porsche dealer can assist in selecting the correct N-Spec tyre for your vehicle. By installing Original Equipment N-Spec Porsche approved tyres, you will keep your Porsche safe, secure and operating as designed and continue to enjoy the Porsche experience for miles to come.

Please click the following link to open the attached PDF for the latest (2008) Tyres approvals for the 996 range. Download option below image

(Text Credit to 'RichardH')

http://www.911uk.com/docs/996_tyres_2008.pdf
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PostPosted: Thu Sep 15, 2011 2:09 pm    Post subject: Reply with quote

Update 02/11
 
  
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GT4
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PostPosted: Wed Aug 29, 2012 10:51 am    Post subject: Reply with quote

Update 03/12

http://www.911uk.com/download.php?id=29236

And

http://files1.porsche.com/filestore.aspx/Porsche-Download.pdf?pool=uk&type=download&id=porscheservice-tire-currentsummertires&lang=none&filetype=default&version=9396e434-c7a4-4ca5-8e95-1ea959b81653

http://files1.porsche.com/filestore.aspx/Porsche-Download.pdf?pool=uk&type=download&id=porscheservice-information-summertires-986-996&lang=none&filetype=default&version=66afe346-ab5e-4038-9e29-09fdc6560c46

http://files2.porsche.com/filestore.aspx/Porsche-Download.pdf?pool=uk&type=download&id=porscheservice-tire-youngtimersummertires&lang=none&filetype=default&version=821ccd4e-aefb-40f1-8ac2-af6682a5b7f7
 
  
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asterix_the_gaul
Barcelona


Joined: 20 Dec 2008
Posts: 1283
Location: Cheshire

1999 Porsche 996 Carrera 2

PostPosted: Sun Mar 03, 2019 4:48 pm    Post subject: Reply with quote

GT4 wrote:
Update 03/12

http://files1.porsche.com/filestore.aspx/Porsche-Download.pdf?pool=uk&type=download&id=porscheservice-information-summertires-986-996&lang=none&filetype=default&version=66afe346-ab5e-4038-9e29-09fdc6560c46


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