Porterfield brake pad question
Registered User
Joined: Jun 2013
Posts: 52
From: Phoenix, Arizona, USA
Rep Power: 15
911s and especially BMWs have NO WHERE near the brake caliper size. these are 14"" rotors. not the paltry 12-13s of the BMWs and earlier porsches. (porsche big reds were 13' rotors, but no where near the caliper size of the AM)
It also could be rotor material and finish, when new. the problem should go away with a good bedding and over time.
your bedding with medium stops, wont due much. they really have to cook to get the resins out of the pads and get a wear pattern on the surfaces.
I do this a lot, so i have quite a bit of experience bedding brakes for street and race. the only pads i cant get to stop squeaking is the full race pads like pagid RS14s or equiv. (pagid racing black). I can get pagid orange race pads to stop squeaking, but the rotors have to be new to begin with.
It also could be rotor material and finish, when new. the problem should go away with a good bedding and over time.
your bedding with medium stops, wont due much. they really have to cook to get the resins out of the pads and get a wear pattern on the surfaces.
I do this a lot, so i have quite a bit of experience bedding brakes for street and race. the only pads i cant get to stop squeaking is the full race pads like pagid RS14s or equiv. (pagid racing black). I can get pagid orange race pads to stop squeaking, but the rotors have to be new to begin with.
I also bought a set of those Red pads that people talked about on this site. MAN were those noisy. No matter what. I always had to brake hard very early, then barely touch the brakes to hopefully slow down in time or they both squealed like a banshee.
There are posts on this site that also complain about Carbotech pads squealing at low speeds. That was the reason I chose the Porterfields. I'm going to continue the bedding process. Wish me luck.
I also tried the Girodisc 2-piece rotors for the Ford GT after reading they should fit. Unfortunately that particular brand did not. It's been quite the learning experience.
I also tried the Girodisc 2-piece rotors for the Ford GT after reading they should fit. Unfortunately that particular brand did not. It's been quite the learning experience.
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Stuart Dickinson
Managing Director
Velocity Automotive Performance Limited
206 Maple Avenue
Oliver, BC
Canada V2A 4W6
Office: (1)250-485-5126
www.velocityap.com
Stuart Dickinson
Managing Director
Velocity Automotive Performance Limited
206 Maple Avenue
Oliver, BC
Canada V2A 4W6
Office: (1)250-485-5126
www.velocityap.com
Registered User
Joined: Jun 2013
Posts: 52
From: Phoenix, Arizona, USA
Rep Power: 15
Quick update - the Carbotech 1521 pads for the front did the trick! Much less dusting and a LOT less squeal. I completed the bedding process and am so happy with the results.
I do notice occasionally the fronts will want to squeak a little upon first driving the car. What seems to work best for me is to perform a couple hard braking tests to wear off the pad material enough to silence them. Then I'm good for about another week. This was a pet peeve of mine with this car, and now I barely ever notice it. I am SO happy.
Now it's time to do the rear pads. I'm even going to do the parking brake pads as well. I've found the Carbotech pads for the rear rotors, but it seems that AM pads are all I can find for the parking brake. If there is anything you would suggest, please let me know. Thanks!
I do notice occasionally the fronts will want to squeak a little upon first driving the car. What seems to work best for me is to perform a couple hard braking tests to wear off the pad material enough to silence them. Then I'm good for about another week. This was a pet peeve of mine with this car, and now I barely ever notice it. I am SO happy.
Now it's time to do the rear pads. I'm even going to do the parking brake pads as well. I've found the Carbotech pads for the rear rotors, but it seems that AM pads are all I can find for the parking brake. If there is anything you would suggest, please let me know. Thanks!
Registered User
Joined: Jul 2014
Posts: 18
From: Como, Italy
Rep Power: 0
The fastest solution was to put a particular red rubber spray (I don't remember now the brand, I have to check at home) behind the pads, It works great ( I used it on my 3 motorbikes and 3 sport cars with racing pads and always worked fantastic, zero sound during breaking)
Thread Starter
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Registered User
Joined: Oct 2012
Posts: 46
From: Rutledge, TN
Rep Power: 15
When I had the Vantage I was pretty pleased with the PF's.
Did have an occasional squeal during hard braking.
I may try the C.T.s on the DB9.
Let me know if those are continuing to work for you.
Thanks for the input.
Did have an occasional squeal during hard braking.
I may try the C.T.s on the DB9.
Let me know if those are continuing to work for you.
Thanks for the input.
Registered User
Joined: Feb 2011
Posts: 142
From: MARTINIQUE FWI
Rep Power: 25
the handbrake pads are the same as S Type Jags:
http://www.ebay.co.uk/itm/JAGUAR-S-T...ht_1071wt_1037
http://www.ebay.co.uk/itm/JAGUAR-S-T...ht_1071wt_1037
Registered User
Joined: Aug 2013
Posts: 504
From: Ocala, fl
Rep Power: 37
Quick update - the Carbotech 1521 pads for the front did the trick! Much less dusting and a LOT less squeal. I completed the bedding process and am so happy with the results.
I do notice occasionally the fronts will want to squeak a little upon first driving the car. What seems to work best for me is to perform a couple hard braking tests to wear off the pad material enough to silence them. Then I'm good for about another week. This was a pet peeve of mine with this car, and now I barely ever notice it. I am SO happy.
Now it's time to do the rear pads. I'm even going to do the parking brake pads as well. I've found the Carbotech pads for the rear rotors, but it seems that AM pads are all I can find for the parking brake. If there is anything you would suggest, please let me know. Thanks!
I do notice occasionally the fronts will want to squeak a little upon first driving the car. What seems to work best for me is to perform a couple hard braking tests to wear off the pad material enough to silence them. Then I'm good for about another week. This was a pet peeve of mine with this car, and now I barely ever notice it. I am SO happy.
Now it's time to do the rear pads. I'm even going to do the parking brake pads as well. I've found the Carbotech pads for the rear rotors, but it seems that AM pads are all I can find for the parking brake. If there is anything you would suggest, please let me know. Thanks!
I have front and rears done with slot for wear pad sensor too for my DB9
Registered User
Joined: Jun 2013
Posts: 52
From: Phoenix, Arizona, USA
Rep Power: 15
The rears are on their way to me now. I should have it completed sometime next weekend. Thanks for all your help!
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