BRracing

Here's a little more info....again, just info.
I have attached a pic that we took when doing the CL stock to CL Cup conversion.
The pic is of the OLD CL Cup Car hub flange....again, NOT the CL street hub, but the 997.2 Cup Car hub flange, and the new one, that all of a sudden appeared out of no where at the end of June 2012. The new Cup Car CL is massive. About three times as thick in some areas, no extra material either designed out to save weight. It is just thick.

Next piece of interesting info. This reported to us by one of our customers this past weekend in CA. They were attending a local PDS (Porsche Driving School) event, and there was a new 991 (2 versions), a new Boxster, and a new Panamera. Guess what all of them NOW have in common? ALL....ALL were on 5 lug setups. This did not used to be the case w either the 997.2 911s they were using, or even more recently this year at Barber. Hmmm....again, seems strange that all of a sudden, when Porsche decides to use its own cars at a PDS event that all have the 5 lug design.

Next....I will agree on the time to do the CL (stock) version. Not only does it take a HUGE amount of time, but it takes 2 people, and we even had a case where it was impossible to do the torque of the CL when new brake pads were installed. What do you do then? You take the wheels off, do your brake work (like a bleed, which we do often at the track, even w the best fluid (Endless by the way)), put on new pads, and then try to torque the wheels w the complete car in the air (part of the process per Porsche)....you can't get sufficient pressure from the brakes to keep the wheels from turning while you try to torque them. So, if you ever need to change brake pads, and follow the procedure to the T, you can't use your car again. Nice.

Enjoy.
Bruce
BRracing

TRAKCAR

Thank you so much, you answered my question, the hub wont retroft street cars.
I was thinking upright..

Even with engine running??

BRracing

More info on the CL Cup Car implementation on street 997.2 variants.
There are multiple setups. All work.

Setup #1 - using a Cup Car CL on a 997 narrow body. Does work, does fit.
The only issue on the narrow body is on the front, the wheel width and offset have to be altered from the std Cup Car wheel size.
We did a Cup Car (or you can also do a GT3-RS) front fender install to allow the Cup Car wheels to fit, and to get the larger size tires.

Setup #2 - Cup Car CL works just fine on the wide body cars (like GT3-RS). Std wheel sizes fit (obviously there are two different wheel sizes for the 997.1 and 997.2 versions).

Net, we can get the Cup Car CL to work on all 997.x variants. We also have access to the BBS wheel rims, and rim halves to make any combination necessary.
Now...since we are a shop, and we are in the business to sell stuff, I won't disclose all the fitment and parts list that we tested to ensure all works....but it all works. And not just hypothetically, we have done this to our customers cars (including the fitment of the front Cup Car front fenders....which also takes more than just fitting the front fenders).

Cheers.
Bruce
BRracing

(PS will post a post w pics of the install and before and after w the CL Cup Car fitment soon....but not today)

outline

I wonder if the new hubs were in response to the supercup race in Barcelona that was cancelled 5 minutes before the start. Safety reasons were cited and the word was issues with cracking wheels on some cars. This was mid may, I've not seen any change to wheels as a result, then out pops brand new hub flanges a few weeks later.

Could of course be coincidence.

BRracing

So we are aware of this as is every team, or most, that are running 12' cup cars.
We have several 12' cups, and what this stemmed from, according to authorities from major wheel manufacturers there at the race, was the new style rims and the inner portion of the spokes shearing away from the center portion of the wheel, they would crack under stress and then the wheel would end up shearing away and flying off the car. (for the 12' cars Porsche has a agreement with a new company, APP, not BBS)
It has been rumored that APP is a division of Rays/Volk racing, but this is not confirmed.
We are not aware of any issues with the hubs at this point, but it could be Porsche taking precautions and changing the design a bit to adjust.
Again just some further information to chew on.

TRAKCAR

You see, just like with the street cars it is a brake rotor / operator error / wheel problem LOL...

BBS FTW..

DRPM

how many CL's do you figure are out there...just wondering what the P bean counters are looking at cost wise to put in a recall and convert to 5 stud and bury this issue before the new 991 GT3 come out....just sayin.

utkinpol

P bean does not do recalls. They have whole family of M97/M96 motors falling apart and exploding, why would they care?
To acknowledge such a major issue would be too big of a reputation hit, it is easier to go their usual route and deny warranty on any track-related damage.

plus, realistically, if one never takes wheels off CL issue may not ever happen from street only driving. so everything is kosher for P.

Dr.Bill

The photos I've seen of the new GT3 showed CL wheels. Maybe the 991.2 will fix the problem?

9972RS

I can't wait for the recall or when Porsche acknowledges a problem. Prices will plumment on the 997.2 cars. 4.0's will be on ebay afterwards

TRAKCAR

Fingers crossed

DRPM

Kaizen (改善?), Japanese for "improvement", or "change for the better" refers to philosophy or practices that focus upon continuous improvement of processes in manufacturing, engineering, and business management...
someone please email this to Porsche in Stuggart

ir_fuel

That is because on the new cars you cannot spec centerlock wheels. Which is not very strange considering the fact that you could only get centerlock wheels on the GTx, the Turbo and GTS, not on the Carrera or Boxster/Cayman, and certainly not on the Panamera or Cayenne.


Never had that problem. It is true you have to push a lot harder, but it always worked for me.

kosmo

P got it. thats why they bought the GTR!

mdrums

Bruce, the only Center Lock 997 street cars that have or could have from the factory as an option we're the GT3-GT3RS-TurboS-Carrera GTS.....the Carrera and Carrera S, Panamera, Boxster and Cayman never ever where offered with Center Locks. So it's no surprise that the new 991 Carrera and Boxster at PSDS at Barber have 5 lugs....this is the way they always came.