thusly

Just had a set of Michelin Pilot Super Sport tires fitted to my GT3 RS. (I lent my car to Michelin for photo shooting during SEMA: look for a blue RS and possibly my Silver CGT in future ads, both filmed at Spring Mountain Motorsports ).

If I recall correctly from the rep, the PSS's are supposed to have the performance characteristics between a MPSC and the new PS3. Definitely more tread than the PS2s and MPSC, so looks like they will be far better for rain, as well as supposed to provide almost MPSC grip in the dry. THe Super Sports are the tires that are supposed to be on the 599 GTO

I believe these tires will be officially announced/released in Dubai in the coming weeks.

Press Release From another forum:

2,396 exceptional new MICHELIN tyres for the equally exceptional FERRARI 599 GTO

MICHELIN partnered with the Italian sports car manufacturer to co-develop these unique tyres in a record time of just 18 months. To enable the FERRARI 599 GTO to achieve its ful performancel potential, the tyres had to strike a balance, delivering optimal track handling and superior safety.

The extra-wide tyres come in different sizes: 285/30 ZR20 for the front and 315/35 ZR20 for the rear. Despite the generous dimensions, they are exceptionally light, with the front tyre weighing just 10kgs and the rear 15kgs. This means a weight saving of up to 10% compared to other tyres of similar dimensions. MICHELIN's lighter tyres deliver two benefits:
- they reduce unsprung weight which in turn improves handling
- they help to reduce fuel consumption and thus carbon emissions. The MICHELIN tyres designed for the FERRARI 599 GTO have up to 20% better rolling resistance than other similar tyres, enabling a reduction in CO2 emissions of up to 7 grammes per kilometer.

MICHELIN engineers developed innovative rubber compounds that ensure safe, precise handling in all conditions even when the tyres are delivering 670 horsepower from the 6-litre V12 engine. Their unique tread comprises three different compounds: a track-type compound on the outer shoulder to withstand the extreme pressure of circuit driving, a compound at the centre of the tread especially designed for superior performance at very high speeds, and an inner shoulder compound designed in combination with the tyre construction to maximize the amount of rubber in contact with the road for surer road-holding.

MICHELIN and FERRARI development engineers and test drivers worked closely together on different racetracks, in particular at Fiorano and Nardò in Italy, to validate the tyres’ performance balance which matches the chassis characteristics of the new FERRARI GTO, Ferrari’s fastest ever road car.

For the Porsche dudes, there won't be any N-Spec PS3's. I believe the N-Specs will be in this new Pilot Super Sport pattern.

I'm also guessing but the weight savings could be borrowed technology from MICHELIN's 2 Wheel Division. Why? Because the all new MICHELIN Power Pure has revolutionary Light Tyre Technology using advanced materials like Kevlar in its construction. Kevlar is a synthetic fibre which is 5 times stronger than steel, weight for weight.

cgomez

This is great news (about the more realistic PSS street tires)!!

The PSC are a waste of resources. They don't really work in ALL summer street conditions and have all the downsides of an "slick" RComp (very low grip when cold, doesn't work in standing water and hear cycle out - so useless at the track after a few 000's Ks on the street).

The Corsas are much better all rounders despite being "slower" (lower grip) than the PSC but I prefer to run them in my street cars for arrive and drive days at the track (as that is the intention with this dual purpose tires). If you are trailering and/or changing tires at the track why bother with PSCs, then why not just use Hoosiers.

I would love to try this PSS and hopefully they design the compound in such a way that despite offering lower grip it is more stable through the life of the tire thread (less sensitive to heat cycling out)

eclou

unless something changed in 2010 you don't want to run tires of equal height front and rear. The factory setup on the 997's has been a rear tire that is 3% taller than the fronts. Running equal heights can cause the computer to think the rear is slipping and activate TC

SDGT3

I actuallly bought the Nittos which have the exact size replacements and found them to be a great street and rain tire. For the track I run Hoosier R6s.

Targa Tim

Sorry to bring back an old thread.

Was still searching for rear tires option for the RS and found THIS.

Hey thusly, please give us feedback on how the PSS (it is 305, right?) performs on your RS? Thanks.

Larry Cable

Not the PS3, you are referring to the Super Sport, and they are not yet available in 325/30-19

Super Sport

+1 I love the Corsas

Larry Cable

yep same fitment as the GT3 on the 12" rears ... so Porsche think its a reasonable fit ...

Targa Tim

Thanks Larry. I'm aware that it will fit the 12" wheel fine, but I'm more interested in the driving part of it. If the testing had included driving the .2RS on the track and it performed fine, then I'll order a set of 245/305 to try right away. If the PSS is on the blue RS just for photos, then it is not helpful at all. Thanks again Larry.

Larry Cable

there are at least 2 .2 GT3RSes running the Super Sports in the 305 fitment in the One Lap of America. No reports yet but also no tales of woe!

Fongster

I am fitting the 305/30/19 onto my GT2.

Wish me luck

C4S993

Last Saturday bought a '07 gt3 in Chicago and drove all night to Pa home

Took to my local p dealer and they want to fail the rear Corsas

Car was sold as cpo

What is the thread depth on new Corsas

Car sold with used Corsas

Thanks

Patrick

Nugget

I'm not sure it's really that big of a deal, but in any event please feel free to use this tool I wrote to evaluate alternative tire sizes:

http://macnugget.org/cars/tirecalc

SSTHO

For DD and some track use - the Bridgestone Potenza RE 11's have been superb for me.

Quite amazing in the rain, solid dry traction for a non-R comp, and communicates well with the driver. Price is right as well.

24Chromium

I've replaced my MPSCs with PS2s. I barely drive the car on the street (only really to/from the track) and they are great. Of course, I swap wheels at the track.

FFaust

From: http://www.tirerack.com/tires/tires....el=PZero+Corsa