Brake Squeal!!!
Thread Starter
Instructor
Joined: Jun 2009
Posts: 164
Likes: 0
From: East Lyme CT
Brake Squeal!!!
I have an 05, Z-51 with about 27K on it. New AC-Delco pads....about 5K ago, and they squeal like a pig. I've tried the "break in" technique.....getting it up to about 60mph and slamming on the breaks about 5-6 times etc etc etc. No luck....still squeal. Any other ideas????? Would Hawk pads solve the problem, if not, which ones are QUIET!!!!?
Thanks!
Thanks!
Supporting Vendor
Joined: Oct 2002
Posts: 50,281
Likes: 518
From: Cleveland OH
St. Jude Donor '11,'13
Carbotech bobcat 1521 is quiet.
The Carbotech Bobcat 1521™ is our high performance street compound that is our most successful compound. The Bobcat compound is known for its awesome release and modulation, along with unmatched rotor friendliness. Like our AX™ & XP™ line of compounds, Bobcat 1521™ is a Ceramic based friction material offering minimal rotor damage and non corrosive dust. Bobcat 1521™ offers outstanding performance, even when cold, low dusting and low noise with an excellent initial bite. This compound’s virtually perfect linear torque production provides incredible braking force without ABS intervention. Bobcat 1521™ operating range starts out at ambient and goes up to 900°F. Bobcat 1521™ is suitable for ALL street cars, perfect for your tow vehicle, police cruiser, and has won multiple SCCA Solo 2 and Prosolo National Championships. The Bobcat 1521™ compound has been found to last two-three times longer than OE pads you can purchase at a dealership or national retailer. Bobcat 1521™ compound has also been found to extend the life of your rotors 2-3 times. That’s one of the beauties of Carbotech Ceramic brake compounds. Bobcat 1521™ is NOT recommended for any track use.
The Carbotech Bobcat 1521™ is our high performance street compound that is our most successful compound. The Bobcat compound is known for its awesome release and modulation, along with unmatched rotor friendliness. Like our AX™ & XP™ line of compounds, Bobcat 1521™ is a Ceramic based friction material offering minimal rotor damage and non corrosive dust. Bobcat 1521™ offers outstanding performance, even when cold, low dusting and low noise with an excellent initial bite. This compound’s virtually perfect linear torque production provides incredible braking force without ABS intervention. Bobcat 1521™ operating range starts out at ambient and goes up to 900°F. Bobcat 1521™ is suitable for ALL street cars, perfect for your tow vehicle, police cruiser, and has won multiple SCCA Solo 2 and Prosolo National Championships. The Bobcat 1521™ compound has been found to last two-three times longer than OE pads you can purchase at a dealership or national retailer. Bobcat 1521™ compound has also been found to extend the life of your rotors 2-3 times. That’s one of the beauties of Carbotech Ceramic brake compounds. Bobcat 1521™ is NOT recommended for any track use.
Melting Slicks
Joined: Aug 2010
Posts: 3,063
Likes: 82
From: Tumwater, WA
Mine are doing it a bit too, not too bad but starting. I went in for an oil change last week and told them about some squeaking and they came back saying I need two new front end links and boots, under warranty of course. So Im hoping that was the squeal and not the brakes. I have 20k on my car.
Thread Starter
Instructor
Joined: Jun 2009
Posts: 164
Likes: 0
From: East Lyme CT
Mine are doing it a bit too, not too bad but starting. I went in for an oil change last week and told them about some squeaking and they came back saying I need two new front end links and boots, under warranty of course. So Im hoping that was the squeal and not the brakes. I have 20k on my car.
What a PIA!!!!!
Thread Starter
Instructor
Joined: Jun 2009
Posts: 164
Likes: 0
From: East Lyme CT
Carbotech bobcat 1521 is quiet.
The Carbotech Bobcat 1521™ is our high performance street compound that is our most successful compound. The Bobcat compound is known for its awesome release and modulation, along with unmatched rotor friendliness. Like our AX™ & XP™ line of compounds, Bobcat 1521™ is a Ceramic based friction material offering minimal rotor damage and non corrosive dust. Bobcat 1521™ offers outstanding performance, even when cold, low dusting and low noise with an excellent initial bite. This compound’s virtually perfect linear torque production provides incredible braking force without ABS intervention. Bobcat 1521™ operating range starts out at ambient and goes up to 900°F. Bobcat 1521™ is suitable for ALL street cars, perfect for your tow vehicle, police cruiser, and has won multiple SCCA Solo 2 and Prosolo National Championships. The Bobcat 1521™ compound has been found to last two-three times longer than OE pads you can purchase at a dealership or national retailer. Bobcat 1521™ compound has also been found to extend the life of your rotors 2-3 times. That’s one of the beauties of Carbotech Ceramic brake compounds. Bobcat 1521™ is NOT recommended for any track use.
The Carbotech Bobcat 1521™ is our high performance street compound that is our most successful compound. The Bobcat compound is known for its awesome release and modulation, along with unmatched rotor friendliness. Like our AX™ & XP™ line of compounds, Bobcat 1521™ is a Ceramic based friction material offering minimal rotor damage and non corrosive dust. Bobcat 1521™ offers outstanding performance, even when cold, low dusting and low noise with an excellent initial bite. This compound’s virtually perfect linear torque production provides incredible braking force without ABS intervention. Bobcat 1521™ operating range starts out at ambient and goes up to 900°F. Bobcat 1521™ is suitable for ALL street cars, perfect for your tow vehicle, police cruiser, and has won multiple SCCA Solo 2 and Prosolo National Championships. The Bobcat 1521™ compound has been found to last two-three times longer than OE pads you can purchase at a dealership or national retailer. Bobcat 1521™ compound has also been found to extend the life of your rotors 2-3 times. That’s one of the beauties of Carbotech Ceramic brake compounds. Bobcat 1521™ is NOT recommended for any track use.
Race Director
Joined: Apr 2005
Posts: 10,436
Likes: 4
From: Everett Wa
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Pro
Joined: Dec 2009
Posts: 648
Likes: 0
From: Kalamazoo MI
I have GM ceramics on 2008 Z51, tried everything including break in procedure, I'm still patiently waiting a solution... On a side note, I dont have any brake dust now - pads have been on for over 1 yr
Supporting Vendor
Joined: Oct 2002
Posts: 50,281
Likes: 518
From: Cleveland OH
St. Jude Donor '11,'13
F $ 144 R $124 less 7% forum discount.
I will be happy to help you out, my contact info is below.
Last edited by Carbotech Adam; Sep 19, 2011 at 05:50 PM.
Pro
Joined: Dec 2009
Posts: 648
Likes: 0
From: Kalamazoo MI
If I buy these, you will guarantee no more brake squeeel... I thought buying the GMceramics would have done that. My rotors are in good condition, all the metal-metal contact points have been greased with anti squeel grease - more than once
Supporting Vendor
Joined: Oct 2002
Posts: 50,281
Likes: 518
From: Cleveland OH
St. Jude Donor '11,'13
Thread Starter
Instructor
Joined: Jun 2009
Posts: 164
Likes: 0
From: East Lyme CT
I just find it REALLY frustrating why crap cars like Kia Souls etc don't make a peep when they stop.....but a really great high performance car (the Corvette) squeals like a beaten pig when I get to a stop light. COME ON GM......is that the BEST we can do?????
Le Mans Master
Joined: Dec 2006
Posts: 7,459
Likes: 18
From: Oviedo,FL. Las Vegas
some squeal and some don't. But, they dam sure stop the car.
Safety Car
Joined: Sep 2007
Posts: 4,359
Likes: 6
From: Los Alamitos California
St. Jude Donor '09
OP, bedding brakes does not consist of getting up to 60 and "slamming" on the brakes multiple times. Bedding is slightly different depending on the rotor and pad, but the idea is to get the rotor hot and distribute an even layer of pad material on the rotor. You then want to drive without using the brakes to let the rotor cool completely.
Bear in mind that simply driving the car normally will take away this layer of pad material. That in turn will cause more noise. You can't just bed your brakes in and expect you're done. Optimum braking requires "maintenance".
San
Pro
Joined: Dec 2009
Posts: 648
Likes: 0
From: Kalamazoo MI
Ding ding ding. We have a winner.
OP, bedding brakes does not consist of getting up to 60 and "slamming" on the brakes multiple times. Bedding is slightly different depending on the rotor and pad, but the idea is to get the rotor hot and distribute an even layer of pad material on the rotor. You then want to drive without using the brakes to let the rotor cool completely.
Bear in mind that simply driving the car normally will take away this layer of pad material. That in turn will cause more noise. You can't just bed your brakes in and expect you're done. Optimum braking requires "maintenance".
San
OP, bedding brakes does not consist of getting up to 60 and "slamming" on the brakes multiple times. Bedding is slightly different depending on the rotor and pad, but the idea is to get the rotor hot and distribute an even layer of pad material on the rotor. You then want to drive without using the brakes to let the rotor cool completely.
Bear in mind that simply driving the car normally will take away this layer of pad material. That in turn will cause more noise. You can't just bed your brakes in and expect you're done. Optimum braking requires "maintenance".
San
