Hi,

Just picking up a very slightly used 05 tonight (1,500 Km)...not even four gas thank old...tonight.

A gentlemen on this Forum told me that the brakes were Gen II but the salerep told me Gen I.

Which is it and should I be concerned if there are Gen I ?

Regards,

Marc

 

Most of the probs with Gen I were track related. I dont recall street use being an issue. On the track they overheated and ceramic material started to flake and chip. Good luck with the new car. Kevin G

 

Gen II disks have an irregular vent hole drill pattern as compared to Gen 1 ceramics; Gen II = more drill holes with less space between the holes.

Also, the vent spacing, between the inboard and outboard disk faces, is larger.

Mainly done for increased cooling during hard use.

Be carefull when you take your wheels off, don't bang or scrape the disk surfaces with the wheel- you will introduce a fatigue point which may later grow into a crack.

Think of them as fine china plates that happen to dissapate heat.

Regards,
BD

 

As BD mentions, be sure to use the Porsche wheel hanger (guide rods) when changing wheels with PCCB.

http://www.ultimategarage.com/wheelhgr.html

http://www.boothedesign.com/boltsstudslugs.html
http://www.boothedesign.com/wheelhanger/bd.gif

 

Marc
Is that the TT from Pfaff? Nice move !!!

Brent

 

Yep, it's that one....picking it up in a few hours

 

Happy to join forum!! I am 99.5% sure that PCCB on 05 Turbo S are Gen II. At least for USA models. The key is "sales rep".

 

Congrads on the 996TT. What is the difference between Gen 1 and Gen 2 PCCB?

 

You should already have an aluminum guide rod in the tool kit that comes with the car.

 

Yes, but IMHO, I think it's better to use 2/wheel when working with PCCB's, just my 2 cents.

 

2005 + porsches are gen 2, you're good to go!

 

Cool, must admitt that the brakes are fantastic.
The best part is that I don't find them overly sensistive when you first apply a small amount of pressure but grabs like hell when you brake properly.
It's alway a nice thing NOT to be smashing your facing in the windshield everytime you touch the brake.

I find by comparision the Cayenne Turbo brakes way too sensitive when you initially touch them.

 

Gen Two only fitted to 997 so your Porsche rep was right....Gen Ones useless if u track them (see above) and at £10,000 a pair the replacement ceramic discs are not cheap!!! Most people are avoiding them or replacing with steel (eg Alcon gen2 floating dics +pagid pads)... In the UK VOSP the vehicle saftey guys are looking into the PCCB problems ...mayb thats why Porsche seem to have temporarily stopped fitting the gen2 to current cars due to "supply" problems!!!!

 

Paul, from all the research ive done, including talking to porsche themselves, the 2005 turbo S is outfitted with gen 2 pccbs.

 

Turbo S have Gen 2. Porsche rep is an idiot. No need to research any further. And don't be afraid to track 'em either but replace the brake fluid with SRF. Enjoy.