TRAKCAR

Need new tires to setup my car properly.

What's the difference?
N0 available, seems identical to OEM N1, not available.
Both seem to have the same spec and mention Porsche on Tire rack.

Load rating?

signes

^ I thought it was only updated compound?

SmokinGTS

orthojoe please chime in, Joe tried the Ferrari spec cup2 tires and they had much lower grip.

orthojoe

You are referring to K1 spec vs N0.
OP is talking about N0 vs N1, which are both Porsche spec.

Mike in CA

To add to Peter's questions; does anyone know what the deal is with the non-availability of the N1 spec tire?

SmokinGTS

Joe is right here, according to michelin the N1 is the latest generation tire.

SmokinGTS

My tire guy was told by his Michelin rep that he may not receive any more tires this year that all of next run of tires was going to Porsche NA. so bend over boys here it comes... Can you say Bridgestone RE71R due out in the next 90-180 days.

mqandil

I had the pleasure to try the GT3 RS w/ N1 in the rain earlier this year and it was outstanding and so much better than the N0 on my GT3, or my GT4 on wet surfaces and especially hydroplaning resistance. I am always worried to go above 65 mph on very soaked wet roads on my GT3 or GT4 and here I was doing over 100 mph on a very wet soaked full of puddles track, and not even a twitch from back or front end. Of course it could be the high down force, or better traction control management on RS but I am leaning towards the N1 is also so much better in the wet than N0. I think also autoblog did a review earlier this year on GT3 RS VS GT4 on soaked track and confirmed what I observed. My recommendation is try to stick to N1 if all possible. Mark

TRAKCAR

Thanks all!

But what's different?
Fauk..

Funny you say that but wet weather is why these tires are so awesome... I haven't tried N0 but if that's the difference I may have to try Pirelli or Dunlop again. Just gave away my last 2 front Dunlops..

I still have 1 day old front N1's..

Macca

The difference is the sidewall load rating.

The 265/325 RS tyres come in SL (NO) and XL (N1) both front and rear.

The GT3 tyres come in original N0 SL rating only for the front and N0 XL rating for the rear. I don't believe we will see an N1 variant until perhaps the new GT3 breaks cover. An improved tyre here may be another way to decrease lap times for the later car. It will be nice and f this happens but like others I'm more keen to see other lower cost track tyres in these sizes enter the market...these cars are getting very expensive to tun at the track with our 6-7 session a day format - 5 days from a set of $2200 tyres...

TRAKCAR

So you think I can run them?
What negatives?

signes

Interesting you say this. Never drove my GT3 with N0 in the rain but was very impressed by the RS with the N1 tires while at Spa. Wet grip exceeded my expectations but unfortunately no reference point to compare with. Although based on supply I may be forced to???

NateOZ

Could try the Dunlops? My RS came with Dunlops - at least they have the correct load rating. I wouldn't risk it as the car probably needs it on the track as it is over a 200lb (1984 vs 2050) difference from the NO to N1 on the MPSC2.

IvanBurns

What's the problem with obtaining N1 Cup2s?

I just ordered a set for my RS from Tire Rack. The confirmation says that they are N1s, and that they will be delivered on Tuesday.

Whoopsy

In RS sizing?

Then don't put N0 on the RS. The N0 are specifically for the 918s, ECO tires and optimized for the 918's weight distribution. The N1 in the same size are the ones developed especially for the RS's weight and handling characteristics.

I had talked to FSW about the N0 N1 tires before.

He said do not swap, it will work at city speed, but will be unsafe if pushed.