Where to bed brake pads? - Dorkiphus.net
Navigation » Dorkiphus.net > Technical & Track Disussions > Track Talk » Where to bed brake pads?

Track Talk A place to talk about Track and DE Events, share driving tips and other Track related items.

Reply
 
Thread Tools Display Modes
  #1  
Old 07-29-2014, 11:23 AM
Fumes's Avatar
Fumes Fumes is offline
He HIT me.
 
Join Date: Jun 2014
Location: DC
Posts: 857
Fumes
Default Where to bed brake pads?

The Pagid procedure is serious. I know Red and Black drivers and instructors sometimes go out first in white to bed but

how do people get this done? middle of the night? early morning in backwoods VA? Thought about doing on track but I can imagine corner workers and chief steward not looking kindly upon a green or even blue driver doing the following on the track - even if you gridded last...?

http://www.pagidracing.com/index.php?id=75

PAGID RECOMMENDED VEHICLE BEDDING IN PROCEDURE

1. BREAKING-IN
(creating a perfect contact-pattern between rotor and brake pad surface)
10 stops with low pressure and low temperature from 150 km/h (90 MPH) to approximately 80 km/h (50 MPH). Distance between each brake stop approximately 600 – 800 meters ( 600 to 800 yards).

2. HEATING-UP
(Warm up in order to initiate some core heat in the whole brake system)
A sequence of 5 stops with medium to high pressure from 180 km/h (112 MPH) to approximately 60 km/h (37 MPH) with maximum acceleration between the stops. After the last stop cool down for 3 minutes with the speed preferably not higher than 100 km/h (62 MPH).

3. RECOVERY STOPS
3 to 5 stops with low pressure from 150 km/h (90 MPH) to approximately 80 km/h (50 MPH). Distance between each brake stop approximately 600 – 800 meters ( 600 to 800 yards).

PLEASE NOTE
It is imperative that the bedding in procedures are NOT performed on public roads. PAGID racing materials are NOT for street use. Failure to follow bedding in procedure may result in a sub-optimal brake performance.
Reply With Quote
  #2  
Old 07-29-2014, 11:27 AM
ausgeflippt951's Avatar
ausgeflippt951 ausgeflippt951 is offline
Shock Whisperer
 
Join Date: Mar 2012
Location: Atlanta, GA
Posts: 3,261
ausgeflippt951 has one HoF thread
Default

I have heard some people go to one of the industrial districts and use the various back roads there. Minimal traffic or po-po.

Southern MD may be a good place to look, if you're in DC.
__________________
Collin M.
I wear a cowboy hat.

'86 951: lucky number 13...rare 6.0L edition.
'06 M3: hers.
Reply With Quote
  #3  
Old 07-29-2014, 11:32 AM
John Clay's Avatar
John Clay John Clay is offline
 
Join Date: Oct 2003
Location: Damascus, MD
Posts: 2,441
John Clay
Default

Fairly easy out my way to find some back roads with good sight lines to get break in done, but 112 is pretty damn quick for a public road (and would have to be a down hill if those pads were on my fofo)
__________________
John Clay
2011 Cayman
1986 944 "Traffic Cone"
2013 Scion FR-S
Reply With Quote
  #4  
Old 07-29-2014, 11:37 AM
BlackTalon's Avatar
BlackTalon BlackTalon is offline
Make Dorki Great Again
 
Join Date: Dec 2002
Location: Alexandria, Virginia
Posts: 14,907
BlackTalon
Default

Use to do it at night on Beltway between Telegraph Rd and 395. Have to go out around 11 pm or later. Make sure you are not speeding up/ slowing down when you are close to the exits (where the cops may sit)
__________________
David D.
'87 Targa

- 2024 was the year, beeches...
Reply With Quote
  #5  
Old 07-29-2014, 11:53 AM
APKhaos's Avatar
APKhaos APKhaos is offline
 
Join Date: Dec 2002
Location: McLean, VA
Posts: 3,715
APKhaos
Default

The object of the exercise is to get the pads up to temperature. Rather than extreme speed/slow cycles which can be dicey on public roads I always used left foot braking which got the pads bedded while using throttle to hold reasonably consistent speed. Best with no following traffic to be confused by brake lights.

Follow the same cycle of heating and cooling of course.
__________________
Tony K
PCA Potomac, Rennlist Member
89 944 Turbo
85 Carrera - Sold
TrackVision
944Cup
Reply With Quote
  #6  
Old 07-29-2014, 11:56 AM
BlackTalon's Avatar
BlackTalon BlackTalon is offline
Make Dorki Great Again
 
Join Date: Dec 2002
Location: Alexandria, Virginia
Posts: 14,907
BlackTalon
Default

Pagid actually states (or at least used to) not to use the left foot braking technique. Although I never understood why it makes much difference. Possibly because you do not brake with the same force that would be achieved using their procedure? Or maybe to limit the potential for overheating the pads and leaving deposits on the rotors?
__________________
David D.
'87 Targa

- 2024 was the year, beeches...
Reply With Quote
  #7  
Old 07-29-2014, 11:58 AM
vranko's Avatar
vranko vranko is offline
 
Join Date: Oct 2010
Location: Mclean, VA
Posts: 2,325
vranko has one HoF thread
Default

Back when I used Pagids I did the first two on the street then the final one at the track on my first run (driving about 8/10s). My technique was 10 or so 50-25mph stops then another 10 70-50mph stops. Did those on back roads with good visibility at night. Go back home with little brake usage and let the brakes cool down overnight.

You don't need to go out in another run group for the final step. Just drive slower the first run and give more passes! The above technique seemed to work well for me.
__________________
John V

2024 BMW G87 ///M2 (Next 444)
2021 Toyota Supra GR (The Bupra, Other 444)
2016 BMW M235
2015 Porsche Cayenne Diesel
2007 Cayman S, #444
2013 Golf R
2012 BWM x5
2017 Mazda MX-5 Club
3 time DE Parade Lap Champion
#BestInstructorEver - Unknown
Reply With Quote
  #8  
Old 07-29-2014, 12:02 PM
APKhaos's Avatar
APKhaos APKhaos is offline
 
Join Date: Dec 2002
Location: McLean, VA
Posts: 3,715
APKhaos
Default

Quote:
Originally Posted by BlackTalon View Post
Pagid actually states (or at least used to) not to use the left foot braking technique. Although I never understood why it makes much difference. Possibly because you do not brake with the same force that would be achieved using their procedure? Or maybe to limit the potential for overheating the pads and leaving deposits on the rotors?
I raced on Pagid Orange for quite a while and always used lfb to bed them. YMMV of course.
__________________
Tony K
PCA Potomac, Rennlist Member
89 944 Turbo
85 Carrera - Sold
TrackVision
944Cup
Reply With Quote
  #9  
Old 07-29-2014, 12:09 PM
BlackTalon's Avatar
BlackTalon BlackTalon is offline
Make Dorki Great Again
 
Join Date: Dec 2002
Location: Alexandria, Virginia
Posts: 14,907
BlackTalon
Default

Quote:
Originally Posted by APKhaos View Post
I raced on Pagid Orange for quite a while and always used lfb to bed them. YMMV of course.
I used it a few times as well when traffic on Beltway was too heavy at 9-10 pm to follow the Pagid instructions. This is around the time when I started to have issues with pad deposits, but the brake cooling on my Carrera was pretty non-existent. And of course I use my brakes a heck of a lot more than you use yours I don't think I will ever advance to that level.
__________________
David D.
'87 Targa

- 2024 was the year, beeches...
Reply With Quote
  #10  
Old 07-29-2014, 12:09 PM
smdubovsky's Avatar
smdubovsky smdubovsky is offline
 
Join Date: Mar 2004
Location: Silver Spring, MD
Posts: 5,284
smdubovsky has three HoF threadssmdubovsky has three HoF threadssmdubovsky has three HoF threads
Default

Maybe the right answer is to not use Pagid? Over years at the track I can't remember how many times we've just thrown on new pads and/or rotors and went. Street too. But usually use PF or Porterfield. Seems to make no difference in modern compounds.
__________________
Stephen
www.salazar-racing.com
1970 914/6 - 3.0L GT
1983 911SC - 3.32L IROC
1984 930 - 3.6L

dirt bikes (some gas, some electric), Sherco trials bike
Sold: 2001 Boxster (hers), 2003 996tt x50 , SpecE30, 1996 E36M3 GTS2 racecar, 2015 Mustang GT, 2008 S2R1000
Reply With Quote
Reply


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

Forum Jump