Starting to look for new tires. 4S comes with 245-35-20 and 305-30-20. I noticed MPSS doesn't come any wider for rears but it does come in 255 for the front. I was wondering if anyone has tried them. Mostly for DD with 4-5 DEs thrown in. What have other 4S owners done for tires?

 

I just ordered PSS in 255/35/20 and 305/30/20s. I DD my car and it will see about 8 track events. The PSS should do better then the P Zero from reviews and from what members have reported back to us on this site.

 

Thanks Stalker. I'll be ordering shortly too.

 

I am also going to be mounting them on Forgeline GA1Rs, 20x9 up front and 20x11 out rear. So getting a little extra footprint up front with the new set up.

Will be trying it out in early July at Mosport.

 

I purchased Michelin PSS for both my 997s. They last longer than PS2s, but the P Zeros on my Cayman S provide far better lateral grip, and they're nowhere close as wide. I'm not convinced PSS is the way to go anymore after 40,000 total miles on them (2 sets).

I will go for the Goodyear N rated Eagle F1 for my next tire, just because it should offer even more grip than the Pirellis.

I always have wondered if the non-N Michelins are the same compound as the N version. My original N rated PS2s on both my 997s offered better grip over the life of the tire than my non-N PSS replacements. Makes me wonder.

 

Nice. Where did you get them? Will they be your new summer wheels?

 

Got the wheels from Gruppewerks, a friend's shop.

 

Just replaced the OEM P0s with Michelin SuperSports on my C2S. I find them to be better in every way. Just as they were better thatn the PS2s on my Boxter S a couple of years ago.

 

Good to know, thanks Chuck. I wish they made 315s for the rears but no such luck.

Has anyone put 255s in the 8.5" OEM wheels? Just want to make sure the figment will be ok.

 

Wider tires may create the look you want, but they are as likely to reduce overall handling capability due to the added unsprung weight. They will not increase contact patch. Geometry dictates that you would have to go to larger diameter, or alternatively, lower tire pressures, to do that.

My tire dealer, a long time active racer, advised that with a mere 400 HP, oversize tires on the rear would be overkill, and larger fronts would be useless unless the car had a serious understeer problem after getting a track alignment (more camber, etc).

 

+1. I think the MPSS are better in every way than the stock POs and probably 2 seconds a lap faster. Regarding wider tires, it is important that the tire sidewall align with the rim for maximum stiffness. If they are too wide, then can bow and be less stiff which negatively impacts handling. But they might look better if that is the goal.

 

We may be in the minority Steve, but I also believe that the MPSS have less grip than the OEM Pirellis on my C2S. Hopefully, they'll last longer. I only got about 9k mi on the Pirellis.

Spyder

 

I hear you. I think people want to believe things; therefore they do. When statistically comparing PS2s to the PSS you'll note the compound is softer on the PS2, but tread width and depth is slightly greater on the PSS. My experience left me always believing the PS2 offered marginally more cornering and acceleration grip over the harder PSS. Of course now I'm limited to Pirelli and Goodyear for my wheel size. I see no issues so far with the Pirellis, but look forward to trying the Goodyears when the time comes. Tire pressures have so much to do with grip and I'm religious to ensure I keep them at the proper cold tire inflation. Having an air compressor at home sure helps.