Knight

Personally I'm not concerned about the N rating, borderline thinking this a marketing tie between Porsche and the tire manufacturer.

I find it hard to believe that say a Michelin N rated tire is going to be different from the exact same none N rated version.

Maybe others with more tire manufacturing knowledge can chime in...

No HTwo O

As long as you are purchasing a quality tire in the proper sizes, with proper inflation, you do not need to run "N" rated tires.

I do believe there is a difference, but just not great enough difference for a driver with my skill level to exploit the differences.

Mark993TT

It certainly is not just a marketing thing. Porsche started with the N rated tyres because in that time the ZR rating was the highest rating and their cars far exceeded the 240kmh topspeed.

The N rating means that that specific tyre has been tested by Porsche to their specific standards. It does not always mean the tyre has been altered specially for Porsche but it could might as well due to the high speeds in combination with the rear engined set up (stiffer side walls for example).

DM993tt

That sure sounds like a marketing thing to me.

FYI - Porsche actually started selling vehicles to the general public that have the engine in the middle AND the front of the car.
/wiseass comment

TT Surgeon

P asymetricos n rated are always nice.

ian 993gt2

i always asumed the n marking was side wall tested weight ie the weight that the sidewalls can hold at rest

ian 993gt2

pilot sport cups on mine

V

I would love to run them but they are no longer available in our sizes (for example no 315/30/18 anymore...).

ian 993gt2

im using 295s on 12s what size wheels are you using?

V

Sorry for the late reply. I've had problem accessing RL lately.

I'm running PS2s 315/30/18 on 12" BBS e88s for street. Fronts are PS2s 245/40/18 on 9" BBS e88s.

For track I'm still undecided. I would love to run MPSCs but they are not available in 315/30/18 and it's a big difference in grip between a 295 and a 315 tire. We need all the grip we can get on the track with these cars.

So that leaves Nitto NT-01 or Toyo r888. Both are available in 315/30/18. The Hoosiers and Kumhos are a no go for me as I need to drive to and from the track. The Nittos are not street legal in Europe so that could be a show stopper.

So that really only leaves the r888, which have mixed feedback here on the forum. NT01s are only available in 245/40/18 fronts, whereas the r888s are available in many sizes, for example 255/35/18, which would work well on a 9,5" front rim for trackwork and also gives a better balance to the 315 rears. Possibly even the 265/35/18 fronts will fit, but will probably rub at full lock.

So likely I will end up with the Toyos, unless a new tire shows up. But this is unlikely since all the new ones like the MPSC+ and the MPSS and the Pirelli Trofeo are all only really being made in 19 and 20", which is a shame.

rcg412

N rated ps2 are different.