Welcome to 911UK
The only place for Porsche, 911uk is the definitive enthusiast and resource site for the Porsche 911.
Registration is fast, simple and absolutely free, so join up today for full access to the site and benefit from latest member offers.

Porsche Classifieds
Porsche Buyers Guides
Sell Your Porsche on 911uk
Create a Free Classified Advert
Search Ads
Classified Adverts FAQ
Trade Classified Information
Buyer & Seller Fraud Protection
Pre Purchase Inspection (PPI)
Porsche Car Sourcing
Porsche Cars Wanted
Model
Stock
Porsche 911
991 : 2011- 9
997 : 2004- 66
996 : 1997-2005 41
993 : 1993-1998 11
964 : 1989-1993 5
Carrera 3.2 : 1983-1989 1
Carrera SC : 1977-1983 0
930 Turbo : 1975-1989 0
Early 911 : 1964-1977 2
Porsche Other Models
Classic : 1950-1965 1
Boxster : 1997- 14
Cayman : 2005- 12
Cayenne : 2003- 9
Macan : 2014- 2
Panamera : 2009- 3
912-914-924-928-944-968 4
959 - CarreraGT - RaceCar 1
Car Parts For Sale & Wanted
Other Items For Sale & Wanted
Wheels Tyres For Sale & Wanted
Number Plates For Sale Wanted

Porsche Services
Porsche Body Shop Repair
Paint Protection & Body Wrapping
Porsche Classic Insurance
Porsche Classic Parts
Porsche Classic Restoration
Porsche Design Collection
Porsche Engine Gearbox Rebuild
Porsche Heritage & History
Porsche News
Porsche Picture Gallery
Win a New Porsche 911

Porsche Parts
Body Parts, Body Styling
Brakes, Clearance
Electrical, Exhausts
Engine Cooling, Engine Electrical
Engine Rebuild, Heating Cooling
Interior Incar, Lighting
Rubber Seals, Service Parts
Steering, Suspension
Transmission, Workshop Tools
Early 911, 911 - 930, 928 - 968
964 - 993, 996 - 997, Boxster
Cayman, Cayenne, Panamera

Porsche Model Range
911 [991] 2011-Current
Porsche 911 [991]
911 [997] 2004-Current
Porsche 911 [997]
911 [GT] GT1-GT2-GT3
Porsche 911 [GT]
911 [996] 1997-2005
Porsche 911 [996]
911 [993] 1993-1998
Porsche 911 [993]
911 [RS] RS-RSR
Porsche 911 [RS]
911 [964] 1989-1993
Porsche 911 [964]
911 3.2 1983-1989
Porsche 911 3.2 Carrera
911 SC 1977-1983
Porsche 911 SC
911 [Early] 1964-1977
Porsche 911 [Early]
Boxster & Cayman
Porsche Boxster & Cayman
Cayenne & Panamera
Porsche Cayenne & Panamera

911uk Site Partners

Post new topic   Reply to topic
Author Message
Kryton
Spa-Francorchamps


Joined: 05 Mar 2005
Posts: 254
Location: Coniston, Lake District


PostPosted: Tue Nov 15, 2016 7:33 pm    Post subject: Reply with quote

You're welcome Thumb
_________________
991.2 GT3, full Club Sport pack
Macan S--soon to be 718 Cayman GTS (weekday drive)
 
  
View user's profile Send private message
   
7and911
Trainee


Joined: 17 Feb 2014
Posts: 69



PostPosted: Tue Nov 15, 2016 10:36 pm    Post subject: Reply with quote

DRZ911 wrote:


If I'm stuck with Pirellis, now have a hope that the N1 addresses most of the shortcomings of the N0. Will be asking my OPC to explain what the technical differences actually are.



Don't expect much differences
 
  
View user's profile Send private message
   
Hmetwally
Newbie


Joined: 25 Nov 2013
Posts: 27



PostPosted: Fri Nov 18, 2016 5:49 pm    Post subject: Reply with quote

I don't think its the quality of the road; because the x5 or my previous audi TTS for example were much more composed in braking on the same set of roads. I also had a cayenne S which was completely fine (don't remember the tyres). The only experience i have had with P Zeros before were on a 2004 BMW 325 and they were terrible.
Set an appointment with Porsche to demonstrate my trouble. I am also ordering a retro fitting of a power Kit, so hopefully we can have an intelligent conversation where they put the customer first instead of the standard denial one normally gets with any subjectivity in the complaint.
I sense they are interested to sell the power kit, so maybe we get to a bundled offering
On the phone they weren't hung up on pirellis or N rating. They discussed retro fitting michelin s
 
  
View user's profile Send private message
   
Hmetwally
Newbie


Joined: 25 Nov 2013
Posts: 27



PostPosted: Wed Nov 30, 2016 10:20 pm    Post subject: Reply with quote

I tried to test the breaking deceleration at which the ABS starts engaging (i.e.. the compound loses traction), and it starts engaging as low as 0.5 g. I checked the maximum logged deceleration that i managed to get since i got the car (4000 Km) and it was 1.01 g
I am still waiting for porsche to come back with an intelligent response hopefully
 
  
View user's profile Send private message
   
6appeal
Nürburgring


Joined: 02 Jan 2016
Posts: 381



PostPosted: Fri Dec 02, 2016 11:19 pm    Post subject: Reply with quote

I haven't found any of the usual tyre retail outlets where you can actually buy an N1 tyre??

Has anyone on here found where you can buy?!
_________________
Present:
991.2 Carrera, SC, PDK, Toys Smile
Yamaha MT01
VW T2 Bay Window 1976

Past:
640d GC, 635d Coupe, RS6 C5, Audi TT 225 Coupe, Astra with wind up windows, Citroen ZX, Rover 213, yes behold, a Rover 213... Renault 5
 
  
View user's profile Send private message
   
6appeal
Nürburgring


Joined: 02 Jan 2016
Posts: 381



PostPosted: Sun Dec 04, 2016 8:53 pm    Post subject: Reply with quote

Finally found where to buy:

Rears
http://www.mytyres.co.uk/rshop/Tyres/Pirelli/P-Zero/305-30-ZR20--103Y--XL-N1/R-289532

Fronts
http://www.mytyres.co.uk/rshop/Tyres/Pirelli/P-Zero/245-35-ZR20--91Y--N1/R-289531

£850 for 4 corners
_________________
Present:
991.2 Carrera, SC, PDK, Toys Smile
Yamaha MT01
VW T2 Bay Window 1976

Past:
640d GC, 635d Coupe, RS6 C5, Audi TT 225 Coupe, Astra with wind up windows, Citroen ZX, Rover 213, yes behold, a Rover 213... Renault 5
 
  
View user's profile Send private message
   
6appeal
Nürburgring


Joined: 02 Jan 2016
Posts: 381



PostPosted: Wed Dec 07, 2016 8:31 pm    Post subject: Reply with quote

£1,070 quote from Porsche

305/30/ZR20 N1 - £304.86 each inc VAT
245/30/ZR20 N1 - £229.86 each inc VAT.
_________________
Present:
991.2 Carrera, SC, PDK, Toys Smile
Yamaha MT01
VW T2 Bay Window 1976

Past:
640d GC, 635d Coupe, RS6 C5, Audi TT 225 Coupe, Astra with wind up windows, Citroen ZX, Rover 213, yes behold, a Rover 213... Renault 5
 
  
View user's profile Send private message
   
6appeal
Nürburgring


Joined: 02 Jan 2016
Posts: 381



PostPosted: Thu Dec 08, 2016 9:32 pm    Post subject: Reply with quote

£1,052 quote from Pirelli performance centre

305/30/ZR20 N1 - £302.70 each inc VAT
245/30/ZR20 N1 - £223.19 each inc VAT.
_________________
Present:
991.2 Carrera, SC, PDK, Toys Smile
Yamaha MT01
VW T2 Bay Window 1976

Past:
640d GC, 635d Coupe, RS6 C5, Audi TT 225 Coupe, Astra with wind up windows, Citroen ZX, Rover 213, yes behold, a Rover 213... Renault 5
 
  
View user's profile Send private message
   
RJKflyer
Montreal


Joined: 30 Aug 2011
Posts: 506



PostPosted: Mon Dec 12, 2016 6:38 pm    Post subject: Reply with quote

Didn't realise PZ were only option on 991.

I sympathise as when I acquired my 997.2 turbo after an RS4 I felt it to be a good deal less confidence inspiring in other than hot & dry.

It was the tyres once again - Bridgestone RE050As - and swapping to Michelin PS2 made a ver material difference. I can now drive it like I could with my RS4, well and the rest.

One thought - can you get Pirelli P Zero Corsa in N-rating?

I did consider those for mine as by all readings they appear OK (versus Sport Cups which seem a bit iffy on the road - less tread depth) provided you have winter tyres for, er, winter.
 
  
View user's profile Send private message
   
VAP
Trainee


Joined: 23 May 2016
Posts: 81



PostPosted: Mon Dec 12, 2016 7:14 pm    Post subject: Reply with quote

6appeal wrote:
Finally found where to buy:

Rears
http://www.mytyres.co.uk/rshop/Tyres/Pirelli/P-Zero/305-30-ZR20--103Y--XL-N1/R-289532

Fronts
http://www.mytyres.co.uk/rshop/Tyres/Pirelli/P-Zero/245-35-ZR20--91Y--N1/R-289531

£850 for 4 corners


Presumably you can have these delivered to your favorite tyre place and have them fitted there.
 
  
View user's profile Send private message
   
RJKflyer
Montreal


Joined: 30 Aug 2011
Posts: 506



PostPosted: Mon Dec 12, 2016 7:31 pm    Post subject: Reply with quote

Just read this:

"Will the N rated Pilot Sport 4 tyres be more like the Pilot Super Sport?

- Yes, as with all Pilot Sport 4, their DNA is purely based on Pilot Super Sport, so the N rated versions will be a great addition to the N rated range. Please note at this point the N rated tyres launched will be focused on new and future Porsche models, not existing vehicles."
 
  
View user's profile Send private message
   
Hmetwally
Newbie


Joined: 25 Nov 2013
Posts: 27



PostPosted: Thu Dec 15, 2016 6:01 pm    Post subject: Reply with quote

I understood from the posts that Pirelli P zeros are the only NRated tyres. I am happy to report that i was able to locate Michelins Sport Cup in N0 and already ordered a set to be delivered from UAE
The porsche dealer here gave a nonchalant attitude towards the complaint and asked me to send it to porsche directly.
I will report when i put on the Michelins (delivery mid Jan)
I also ordered a power Kit and will be happy to report before and after observations (separate topic?)
 
  
View user's profile Send private message
   
Hmetwally
Newbie


Joined: 25 Nov 2013
Posts: 27



PostPosted: Thu Dec 15, 2016 6:12 pm    Post subject: N rated Michelins Reply with quote

There it is
 



IMG_7068.jpg
 Description:
 Filesize:  105.16 KB
 Viewed:  2348 Time(s)

IMG_7068.jpg


  
View user's profile Send private message
   
Hmetwally
Newbie


Joined: 25 Nov 2013
Posts: 27



PostPosted: Thu Feb 02, 2017 10:48 pm    Post subject: Reply with quote

I am happy to report that i have just installed the new Michelin n rated tyres instead of the pirelli Pzeros after doing 5000 KM with the pirellis.

Here are the very initial observations:
I am still running the new tyres in so i have only done a couple of hundred Km with them, however it is quite clear that there is an improvement in the steadiness of the neutral position of the steering wheel when driving straight. The car feels a lot more stable in the straight direction. When i had the p zeros i felt i had to switch to sport suspension when driving fast because the steering felt a little wobbly with any bumps or irregularities on the road. This feels different now.

On bumps, the wheels are a lot softer and more comfortable.

Regarding the response on sudden braking, i still cannot confirm the difference. but overall the car feels a lot less brittle and more in touch with the road: more reassuring!
I also re- tried ( only one time) braking distance test that i had previously done with the zero and i think i see a shorter breaking distance in similar situation. But i still need to validate the whole hard-braking situation after i run the tyres in a little bit more.

Initial verdict: a much more re-assuring set of tyres, feels a lot more in contact with the road and overall a less brittle feeling.

Thought would be useful to share

Hazem
 
  
View user's profile Send private message
   
Hmetwally
Newbie


Joined: 25 Nov 2013
Posts: 27



PostPosted: Tue Feb 14, 2017 8:21 pm    Post subject: Reply with quote

So the final verdict, i feel that the contact is back. Much better quality of contact to the road in every aspect. Even when ABS engages, the wheels are biting on the road a lot harder to make the car stop in a demonstrably shorter distance. And the feeling is much more reassured. I am extremely happy that i made the change.
 
  
View user's profile Send private message
   
MNC911
Österreich


Joined: 10 Feb 2016
Posts: 972
Location: Prestbury


PostPosted: Tue Feb 14, 2017 9:56 pm    Post subject: Reply with quote

I'm of the same line of thought as others. Your vehicle is a 4 wheel drive and is one of the best for grip and drive. Look on the official Pirelli website for the performance window the P-zero to work at its optimum. I bet it doesn't describe winter temperatures contribute. But I wouldn't concentrate too much on changing to another manufacturer to buy further summer tyres. My advice would be to invest in winter tyres that are designed to operate in low temperatures. The only other option is to accept the limitations and don't drive it like the Stig in winter.

Remember it's just a car and although it may be a Porsche isn't going to make it an F1 car. Plus Porsche test drivers would have ragged the living daylights out of a 911 on all N rated tyres. Advice from me would be to back off the gas and explore more in summer.
_________________
History:
'10 911 Cab
'13 Cayman
'02 Boxster
 
  
View user's profile Send private message
   
Hmetwally
Newbie


Joined: 25 Nov 2013
Posts: 27



PostPosted: Tue Feb 14, 2017 10:39 pm    Post subject: Reply with quote

Thanks for that MNC911,
Actually i have had the same issue driving in the summer (car delivered Feb 15).
Currently where i live (Egypt), the temp doesn't drop lower than 14 except rarely.
The normal daytime temp here is 19 Celsius
The spongy contact didn't show while driving anywhere close to how the stig would Smile and not only at low temperatures
I am sharing what i found to be a problem IMO, and now the problem has been solved with the change to Michelins as i shared before.

Frankly this car, for me, is a dream car and didn't want the tyres to ruin the experience thats why i decided to take the risk and make the change which wasn't cheap. And now it's working well for me after the change; now the car does feel like best in class in terms of grip and contact.
Will check the pirelli website for reference
 
  
View user's profile Send private message
   
MNC911
Österreich


Joined: 10 Feb 2016
Posts: 972
Location: Prestbury


PostPosted: Tue Feb 14, 2017 11:17 pm    Post subject: Reply with quote

Oh wow, well for sure they should be really good on paper with those temperatures.

I had a good conversation with Goodyear and their technical design team a few years back, I'm sure if you sent them a email they'd interact with you as to your findings and concerns. Design departments for compounds and the physical design believe it or not do need genuine real world feedback as opposed to test conditions on a given track.

The only other possibilities are with vehicle suspension geometry, power delivery, tyre pressures. Given the way the new 911 design and the fact it's all wheel drive it should stick to the road like chewing gum.

My background comes from high performance motorbikes and I have to admit I felt more planted and confidence with a certain brand and model of tyre. Having said that I was on track with Neil Mckenzie one day at Donnington and he wiped the floor with us on R1's and GSXR1000's whilst he was on a goldwing. Which just goes to show that sometimes (not always) it can be something else and not what we think is the problem. Glad you feel more confident if your tyre change has done the job thumbsup
_________________
History:
'10 911 Cab
'13 Cayman
'02 Boxster
 
  
View user's profile Send private message
   
6appeal
Nürburgring


Joined: 02 Jan 2016
Posts: 381



PostPosted: Wed Feb 15, 2017 9:14 am    Post subject: Reply with quote

MNC911 wrote:
Having said that I was on track with Neil Mckenzie one day at Donnington and he wiped the floor with us on R1's and GSXR1000's whilst he was on a goldwing. Which just goes to show that sometimes (not always) it can be something else and not what we think is the problem. thumbsup


Thats priceless. Love it. worship
_________________
Present:
991.2 Carrera, SC, PDK, Toys Smile
Yamaha MT01
VW T2 Bay Window 1976

Past:
640d GC, 635d Coupe, RS6 C5, Audi TT 225 Coupe, Astra with wind up windows, Citroen ZX, Rover 213, yes behold, a Rover 213... Renault 5
 
  
View user's profile Send private message
   
Display posts from previous:   
Post new topic   Reply to topic   All times are GMT - 12 Hours
Goto page Previous  1, 2
Page 2 of 2

 
Jump to:  

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
You cannot post calendar events in this forum