PCCB & Cast iron Brakes / pads technical information - Rennlist - Porsche Discussion Forums



997 GT2/GT3 Forum

PCCB & Cast iron Brakes / pads technical information

Reply
 
Thread Tools Search this Thread
Old 03-14-2011, 04:48 PM   #1
911SLOW
Super Moderator
Lifetime Rennlist
Member
Thread Starter
 
911SLOW's Avatar
 
Join Date: Dec 2003
Posts: 10,599
Exclamation PCCB & Cast iron Brakes / pads technical information

Members only and posts must not be copied elsewhere.

Thank you.

link
911SLOW is offline   Reply With Quote
Old 05-24-2012, 02:23 AM   #2
CRex
Addict
Rennlist Member
 
CRex's Avatar
 
Join Date: Sep 2009
Location: NYC / HKG
Posts: 2,399
Default Real Life Example

There's currently a set of 996TT takeoffs on ebay which serves an excellent "teaching aid" on the topic of rotor wear. Search under "996 PCCB". Excerpt of pictures as follows. This is a set of so-called "Gen 1" rotors without the three dime-sized wear indicators and fewer ventilation vanes:

The RR is typical of a "well-used" rotor with extensive (yet even) delamination throughout the surface. Lighter, silvery areas are what remain of the original laminate. Deeper, brownish areas are what one should be concerned about and what accelerates pad wear. Marginally usable in some circles ...

Name:  IMG_2679.jpg
Views: 3559
Size:  147.4 KB

FL shows this unusual "ring" of delamination around its outer edge. The contrast is clear in this picture--the delaminated areas exhibit a stony, concrete-like quality. Suspect a bad choice of brake pads in the past has contributed to this extreme and unusual wear pattern. This rotor belongs to the landfill...

Name:  IMG_2686.jpg
Views: 4350
Size:  152.0 KB

FR. Notice the uneven pitting i.e. deeper around 10 o'clock...

Name:  IMG_2690.jpg
Views: 3702
Size:  159.6 KB

A close-up of the same FR rotor...

Name:  IMG_2692.jpg
Views: 4807
Size:  173.7 KB

Lastly, a textbook case of chipping in the RL. Unusual stress fractures close to the hat. Porsche CCBs tend not to stress-crack (unlike those found in Lamborghinis and AMGs and even when they do, the cracks typically emanate from the drill holes. Another one for the landfills...

Name:  IMG_4833.jpg
Views: 3811
Size:  116.7 KB

FWIW the seller's listing these rotors individually at $1.2-1.3k per corner. Dunno what's in the water over there but most people wouldn't want these rotors even for milk-run duty...

Last edited by CRex; 07-03-2012 at 09:50 PM.
CRex is offline   Reply With Quote
Old 05-28-2012, 03:58 PM   #3
TRAKCAR
Addict
Rennlist Member
 
TRAKCAR's Avatar
 
Join Date: Jan 2008
Location: S. Florida
Posts: 23,650
Default

I was in Monaco this weekend and I spoke to a few CUP car teams there.
Supercup is mandatory PCCB.

-The mechanics said that they lose a day bedding them in, they only last 3 weekends and they prefer steel because cheaper and work just as well and last longer. Just their 0.02c.
TRAKCAR is offline   Reply With Quote
Old 05-28-2012, 08:48 PM   #4
CRex
Addict
Rennlist Member
 
CRex's Avatar
 
Join Date: Sep 2009
Location: NYC / HKG
Posts: 2,399
Default

Costs notwithstanding, PCCBs offer a steering feel that no cast iron rotor can match. Physics is physics--that 10-11 pounds of unsprung weight per corner shows in the steering*. Enough for me to put the PCCBs back on after having the street GT3 irons for two weeks.

Just three weekends for supercups sounds pretty bad. I remember hearing longer--to the tunes one set per season, but that's just hearsay. PMNA does sell the rotor (sans hat) at deeply discounted pricing--some $1-2k per rotor IIRC; can anyone with a Motorsport account please chime in? IMO this is a matter of pricing--at say $5k for 4 corners there's a good argument to be made...

* with steer-by-wire in the 991 this may become a moot point...
CRex is offline   Reply With Quote
Old 10-11-2012, 04:51 PM   #5
kleddon
User
 
kleddon's Avatar
 
Join Date: Apr 2012
Posts: 8
Default

Does anyone know the approximate cost to convert PCCB to steel on a 997.1 GT3?
kleddon is offline   Reply With Quote
Old 11-10-2012, 12:34 PM   #6
CRex
Addict
Rennlist Member
 
CRex's Avatar
 
Join Date: Sep 2009
Location: NYC / HKG
Posts: 2,399
Default

My latest observations posted here in a separate thread
CRex is offline   Reply With Quote
Old 01-14-2013, 01:21 PM   #7
Craig - RennStore.com
Basic Sponsor
Rennlist
Site Sponsor

 
Craig - RennStore.com's Avatar
 
Join Date: Jul 2004
Location: Kirkland, WA
Posts: 4,224
Default

UPDATE: Pagid is coming out with performance pads MADE FOR PCCB
__________________
-Craig
E-mail & phone: rennstore@comcast.net 425-765-1090, www.Rennstore.com -- - knowledgeable advice
Craig - RennStore.com is offline   Reply With Quote
Old 01-31-2013, 02:11 AM   #8
CRex
Addict
Rennlist Member
 
CRex's Avatar
 
Join Date: Sep 2009
Location: NYC / HKG
Posts: 2,399
Default

Quote:
Originally Posted by Craig - RennStore.com View Post
UPDATE: Pagid is coming out with performance pads MADE FOR PCCB
Can't wait. Any details you can divulge? Where does it fall in terms of the performance/behavior spectrum of the RS pad spectrum?

Ideally we'd get the bite of RS15s and the durability of RS29s...
CRex is offline   Reply With Quote
Old 01-31-2013, 03:59 PM   #9
Craig - RennStore.com
Basic Sponsor
Rennlist
Site Sponsor

 
Craig - RennStore.com's Avatar
 
Join Date: Jul 2004
Location: Kirkland, WA
Posts: 4,224
Default

I'll check on availability-
__________________
-Craig
E-mail & phone: rennstore@comcast.net 425-765-1090, www.Rennstore.com -- - knowledgeable advice
Craig - RennStore.com is offline   Reply With Quote
Old 01-31-2013, 04:02 PM   #10
Craig - RennStore.com
Basic Sponsor
Rennlist
Site Sponsor

 
Craig - RennStore.com's Avatar
 
Join Date: Jul 2004
Location: Kirkland, WA
Posts: 4,224
Default

__________________
-Craig
E-mail & phone: rennstore@comcast.net 425-765-1090, www.Rennstore.com -- - knowledgeable advice
Craig - RennStore.com is offline   Reply With Quote
Old 01-31-2013, 04:28 PM   #11
Craig - RennStore.com
Basic Sponsor
Rennlist
Site Sponsor

 
Craig - RennStore.com's Avatar
 
Join Date: Jul 2004
Location: Kirkland, WA
Posts: 4,224
Default

Availability: mid-February !
__________________
-Craig
E-mail & phone: rennstore@comcast.net 425-765-1090, www.Rennstore.com -- - knowledgeable advice
Craig - RennStore.com is offline   Reply With Quote
Old 02-17-2013, 08:33 PM   #12
TomGT3
Addict
Rennlist Member
 
TomGT3's Avatar
 
Join Date: Jul 2010
Location: Live Free or Die
Posts: 334
Default

Craig, anything yet on these?
TomGT3 is offline   Reply With Quote
Old 02-18-2013, 01:52 PM   #13
Craig - RennStore.com
Basic Sponsor
Rennlist
Site Sponsor

 
Craig - RennStore.com's Avatar
 
Join Date: Jul 2004
Location: Kirkland, WA
Posts: 4,224
Default

PMNA says they will arrive in a week - if so, I should then have EVERY piece of studs/nuts know to Porsche man :-)
__________________
-Craig
E-mail & phone: rennstore@comcast.net 425-765-1090, www.Rennstore.com -- - knowledgeable advice
Craig - RennStore.com is offline   Reply With Quote
Old 02-18-2013, 02:42 PM   #14
TomGT3
Addict
Rennlist Member
 
TomGT3's Avatar
 
Join Date: Jul 2010
Location: Live Free or Die
Posts: 334
Default

Please PM me pricing when you can.
TomGT3 is offline   Reply With Quote
Old 02-18-2013, 03:07 PM   #15
Craig - RennStore.com
Basic Sponsor
Rennlist
Site Sponsor

 
Craig - RennStore.com's Avatar
 
Join Date: Jul 2004
Location: Kirkland, WA
Posts: 4,224
Default

Done -
__________________
-Craig
E-mail & phone: rennstore@comcast.net 425-765-1090, www.Rennstore.com -- - knowledgeable advice
Craig - RennStore.com is offline   Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Administrators why can't I go to this thread? Maxhouse97 991 6 03-08-2017 11:13 PM
Components needed to swap PCCBs for iron brakes smmmurf GT4 9 09-25-2016 03:17 PM
PCCB to cast iron - Whats best? Beck256 997 GT2/GT3 Forum 17 08-16-2016 07:28 PM
Free PFC 08 brake pad full set (used) Spyerx 997 GT2/GT3 Forum 5 04-25-2016 11:23 AM
WTB: PCCB rotors CRex 996 GT2/GT3 Forum 6 08-25-2015 03:49 AM


Tags
997, brake, brakes, cast, disc, discs, gt3, iron, pads, patterns, pccb, pictures, rotor, wear, worn

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -3. The time now is 05:34 AM.


Copyright ę 1998 - 2017 Rennlist.com
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: