Adrian

Dear Bill,
You have not upset me just confused me. Again you are talking business and I am discussing technicalities. The list I have posted are "Porsche Approved" tyres which will be coming out soon according to Michelin. The tyres you are using are not Porsche approved but you are right the car does not care.
The point is however that people are saying that some of these tyres are already on the market and I am saying "Not" these tyres they ain't. Someboidy on the 911 forum posted a press statement. Something like these are the new PS2 versions. I only quickly glanced at it.
The 19 inch versions on the BMW M3 CSLs are only lasting 1000 km maximum on the track and BMW are requiring you to sign a discalimer if you take the car with these tyres. I have no idea how the 15 to 18 inch versions for Porsche will wear.
I love Michelin tyres and at the first oportunity I will get a set of these for myself so I do not understand the second paragraph of your post except to say that on a M3 these tyres are not good at high speed in the wet.
Ciao,
Adrian
964C4

DJF1

Funny how different Michellin USA is from the European division! I have a PDF file from Michelin about the Sport Cup and PCA racing which I'm not sure how to post here but I quote from one of the pages (45 in total):

Michelin as a sponsor of PCA Club Racing will support
ten events in 2003.
Ž
Trackside support
Ž
Michelin ALMS engineers
Ž
Fitting Services
Ž
Tire Sales
Sebring California Speedway Summit Point
Road Atlanta Watkins Glen Carolina Motorsport Park
Lime Rock Porsche Parade
Mid Ohio Road America

or from another part:

Porsche /
Michelin Relationship
Michelin is Porsche’s principle partner for;
Ž
Street Tires
Ž
Competition Tires
Formal Agreement,
International in Scope
Ž
One of only two such partners,
along with Mobil One
Ž
Joint International Motorsports Activities
Ž
American Le Mans Series (ALMS)
Ž
Porsche Michelin SuperCup (PMSC)

The file then proceeds to mention specific for Porsche applications regarding tire pressures, care etc, example like this:

Care and Feeding
Ž
PRESSURES
Ž
General Guidelines:
Ž
Road Racing
:
Ž
25-
28 psi cold (front/
rear)
Ž
32-
36 psi hot (front/
rear)
is your typical target
Ž
Autocross
(slalom):
Looking for same range (of hot pressures-
-
may need to start at higher cold inflation pressures because of
the decreased pressure gain in autocrossing).
Ž
Road:
OE pressures
Ž
Rain:
For both autocross and road racing,
you may have to
increase tire pressure 6-
10 psi from what you would normally
run in dry conditions.
Your car and driving style in the wet is
important here,
so some experimentation may be in order.

Please note that this PDF file from Michelin is Porsche specific...

If someone knows how I can post this PDF file please let me know.

Adrian

I really think some of you guys have got the wrong end of the stick and have twisted a thread about one new product range into something completely different.
Somehow and I am not sure how or why you are mixing up Michelin USA sponsorship for Porsches as being a source of tyre approval. This is not the case. For track tyres there is no Porsche approval required. Michelin sponsoring events like this just means you all race on Michelin tyres. For Tire rack only to sell to PCA racing people a specific tyre for a particular Porsche racing series does not mean the tyre is Porsche approved. No N rating on the tyre then the tyre is not Porsche approved to be installed for road use.
By the way only Porsche Engineering can approve tyres and allocate the N rating. PCA, PCNA cannot. PAG is Porsche. PCNA is an auto distributor. PCA is a club.
Ciao,
Adrian
964C4

Adrian

I pinched this off the 911 forum. It is not the whole reply but enough,
Ciao,
Adrian
964C4

'Unprecedented Level of Motorsports Tire Technology Transfers'

LAS VEGAS, Nov. 6 /PRNewswire/ -- Vehicle manufacturers and technology
developers often claim that their motorsports programs provide a proving
ground for new technologies. When pressed, they can sometimes point to an electronics package, transmission or an engine technology. Michelin has taken a more direct route.
"We are blowing open the vault to bring more of our outstanding
motorsports technology to the consumer," said Sheryl Henderson, Michelin brand director, Michelin North America, Inc.
Drawing from the technology, resources and experience behind one of the
most extensive and successful motorsports program in the world, Michelin is
transferring an "unprecedented" level of its competition technology to four
new ultra-high-performance passenger car tire lines. The new Michelin (R)
Pilot(R) Sport PS2(TM) will be available to consumers beginning in the spring
of 2004, followed later in the year by the Michelin(R) Pilot(R) Exalto
PE2(TM), the Michelin(R) Pilot(R) XGT Z4(TM) and the Michelin(R) Pilot(R)
Alpin(R) PA2(TM).
"Michelin is developing so much new technology in design, construction,
compounding and tread design that these new street tires represent a
tremendous increase in the volume and level of performance innovations flowing to the market at one time," Henderson said.

BGLeduc

DJF1,

To cut/copy/paste from PDF normally requires that you have the full version of Acrobat, not just the reader. There may be other programs that can do it, but in my experience with work, I needed the full version (which allows you to create PDFs from almost amy source).

BTW, is that PDF you quoted from online somewhere?

BGL

DJF1

Thanks...I only have the reader here at work... I will be glad to send it to you on email if you wish. This PDF was I believe on Michelin website , I looked again and I could not find it anymore. I saved it in the beginning of 2003 I think on a link from the racing forum of this site. It is true that when the Sport Cup came out it was only available for PCA members. It is also clear when you read the PDF which as a cover page has the Porsche logo and Michelin logo along with a Supercup car you understand that the Sport Cup was actually developed specifically for Porsche and not for BMW... Approved or not in reality when you have a 45 page presentation jointly done by Michelin and Porsche you understand that the Sport Cup is actually Porsche specific and can be used for other cars as well...
I think that was the whole point of the argument here and why JC posted first about the way Michelin has advertised in the US the sport cup...

burgass

Hello Adrian

Could you please post what is available for 18"

Regards

JC in NY

Hmm,

I think I may see the confusion here. The "Michelin Pilot Sport" is a tire that has limited 18" "N" approved designation for Porsches right now. Maybe Michelin is saying that they plan to make "N" versions of this tire for Porsches in other sizes like 17"?

This discrepancy would make this whole thread confusion make sense...

Adrian

Dear Burgass,
I posted them on page one of this thread,
Ciao,
Adrian
964C4

Dear JC,
The letter and whole discussion always has referred to the Michelin Pilot Sport Cup tyres as fitted to the BMW M3 CSL. Michelin UK told our UK colleagues that the work was not finished with Porsche when the Sport Cup was offered as an option in 18 or 19 inch sizes for the BMW M3 CSL and in their published table. Michelin France now tells me that this work is finished and the Porsche approved Sport Cups will be available soon in the sizes provided along with a new range of tyres for older Porsches. The discussion was never about the Pilot Sport version. Only the Sport Cup. We should see N rated Sport Cup tyres approved for road use.
Porsche do not offer the Michelin Pilot Sport Cup as standard or as option on new Porsches. BMW do.
Ciao,
Adrian
964C4

David K.

As far as track tires go "N"=nonsense.

The thing that matters is the stop watch.

Roygarth

Adrian

Thanks for all this info. Any idea how long before N rated MPSC are available in UK?

Adrian

No idea Piers. I will wait until next spring/summer and see what we get.
Ciao,
Adrian
964C4

Cupcar#12

Nice Tires Jeff - glad your using them