Notices
C6 Corvette ZR1 & Z06 General info about GM’s Corvette Supercar, LS9 Corvette Technical Info, Performance Upgrades, Suspension Setup for Street or Track
Sponsored by:
Sponsored by: Kraken

[Z06] Less stopping power after front brake pad install

Thread Tools
 
Search this Thread
 
Old 03-17-2011, 12:06 PM
  #1  
drewcorvette
Racer
Thread Starter
 
drewcorvette's Avatar
 
Member Since: Jan 2006
Location: New York NY
Posts: 331
Likes: 0
Received 0 Likes on 0 Posts

Default Less stopping power after front brake pad install

15k miles on my 2008 z06, and replaced my front pads b/c they were very low. I ended up buying front oem brake pads from GM parts house and they were installed last week.

When stopping i feel i have to press the brake pedal all the way down to get any real stopping power. I am unsure if new brake pads have to be worn in first or possibly my rotors need to be replaced? The rotors look like they have a glazed finish on them, so maybe its the rotors and not the pads?

I don't feel any vibration when stopping but i don't feel confortable with 550 rwhp and no real stopping power.

please let me know what you suggest?
Old 03-17-2011, 12:25 PM
  #2  
Amol
Instructor
 
Amol's Avatar
 
Member Since: Jun 2010
Location: Plano tx
Posts: 102
Received 4 Likes on 3 Posts

Default

Bleed the brake lines, seems like you got air in it.
Old 03-17-2011, 12:33 PM
  #3  
Kaldar
Instructor
 
Kaldar's Avatar
 
Member Since: Apr 2010
Location: Mt Airy, MD
Posts: 207
Likes: 0
Received 0 Likes on 0 Posts

Default

I suggest trying to bed them in.



1. Brake from 60mph down to 30mph about 4-6 times.
2. Then let your brakes cool for about 2-3 minutes while driving.
3. Repeat step # 1.
4. Allow the brake pads and discs to cool down to ambient temperature (about 30 minutes or more).

Taking from Carbotechs website, then see how it goes otherwise i would say you need to bleed the brakes
Old 03-17-2011, 12:40 PM
  #4  
rpanesar
Melting Slicks
 
rpanesar's Avatar
 
Member Since: Feb 2005
Location: GTA Ontario
Posts: 2,094
Likes: 0
Received 17 Likes on 13 Posts

Default

If you are depressing the pedal further down, then you need to bleed the system...with new pads you should get instant bite as opposed to the worn pads.
Old 03-17-2011, 12:41 PM
  #5  
drewcorvette
Racer
Thread Starter
 
drewcorvette's Avatar
 
Member Since: Jan 2006
Location: New York NY
Posts: 331
Likes: 0
Received 0 Likes on 0 Posts

Default

can any mechanic bleed the z06 lines or should i just bring it into service?
Old 03-17-2011, 12:46 PM
  #6  
1FUNC5
Le Mans Master
 
1FUNC5's Avatar
 
Member Since: Oct 2002
Location: Hoover, AL NCM Life Member #2438
Posts: 7,998
Received 49 Likes on 46 Posts

Default

a dealer or brake shop will have a machine that can bleed them all at one time including the abs master cylinder
Old 03-17-2011, 01:16 PM
  #7  
NORTY
Race Director
 
NORTY's Avatar
 
Member Since: Dec 2005
Location: Carlsbad Ca
Posts: 10,128
Received 387 Likes on 242 Posts

Default

Bed in your new pads like a shop in Sandy Eggo does~

Run it up to 150mph
CRUSH the pedal
all the way down to 2-3mph
release and coast for 2 minutes
DONE!

Oh, it'll bed them in alright...
Old 03-17-2011, 01:43 PM
  #8  
jgaches
Pro
 
jgaches's Avatar
 
Member Since: Mar 2005
Location: San Jose Ca
Posts: 706
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by NORTY
Bed in your new pads
Agreed. Changing pads does not "get air" into the system. Your peddle feel has gone away because the unbedded pads have not reached their friction potential yet. Your pressing further to the floor to get the car to stop.
Old 03-17-2011, 05:19 PM
  #9  
ByByBMW
Le Mans Master

Support Corvetteforum!
 
ByByBMW's Avatar
 
Member Since: Dec 2004
Location: AZ
Posts: 5,754
Received 536 Likes on 279 Posts
St. Jude Donor '06-'08-'10-'11-'12-'13 '14-'15-'16-'17-'18-'19


Default

Yep, bed em, stoptech has a method also. Google it and you will find LOTS of info on bedding new pads in.
Old 03-17-2011, 06:08 PM
  #10  
Bill Dearborn
Tech Contributor
 
Bill Dearborn's Avatar
 
Member Since: Oct 1999
Location: Charlotte, NC (formerly Endicott, NY)
Posts: 40,078
Received 8,919 Likes on 5,328 Posts

Default

You don't need to do anything to the rotors if you replaced OEM pads with OEM pads. The rotors have the proper pad transfer layer on them. However, you still have to bed them in. The GM Service Manual has a bedding procedure as well.

Burnishing the brake pads and brake rotors is necessary in order to ensure that the braking surfaces are properly prepared after service has been performed on the disc brake system.
This procedure should be performed whenever the disc brake rotors have been refinished or replaced, and/or whenever the disc brake pads have been replaced.
  1. Select a smooth road with little or no traffic.
  2. Accelerate the vehicle to 48 km/h (30 mph).Important: Use care to avoid overheating the brakes while performing this step.
  3. Using moderate to firm pressure, apply the brakes to bring the vehicle to a stop. Do not allow the brakes to lock.
  4. Repeat steps 2 and 3 until approximately 20 stops have been completed. Allow sufficient cooling periods between stops in order to properly burnish the brake pads and rotors.
Bill

Get notified of new replies

To Less stopping power after front brake pad install




Quick Reply: [Z06] Less stopping power after front brake pad install



All times are GMT -4. The time now is 05:55 PM.