I currently have the standard OEM Brembo brakes that are included with the kit. The pads are making an awful squealing noise at every stop. Can anyone suggest pads that don't squeal? Additionally, if anyone has a part number for the pads, I would be open to trying out a few different sets. It would be awesome if you could share what part number I need to look for. I tried the sl-c wiki and didn't see it in there.
Brake pads
- Thread starter v8maro
- Start date
I also have a Brembo handbrake on my car, they don’t make a noise, they are just not doing the job they were designed for. They failed at my IVA test as they were functioning below the 18% pass rate. At the next test after driving round with the handbrake full on for many circuits, it finally passed at 22%, so if there are better pads that will fit, I am interested.
My RCR40 has Wilwood calipers. I never had brake squeal with the original pads but switching to Ferodo DSUNO (https://www.ferodoracing.com/ecat/code-compound/car-racing/brake-pads/FRP501Z) greatly increased stopping power - no squeal from the start. I'm not sure if this will solve your problem. On other cars I've been using DS2000 pads. No squeal on any of the cars but the Porsche 944 Turbo S (until fully bedded in).
Howard Jones
Supporter
Steve, can you tell us what brake pads pass your country's regulations? I can suggest a few pads but I have no idea what the government(s) allow where you live. Also be aware that changing pad types can cause problems all on it own. The original pad material imbeds itself into the rotor and then the new one imbeds itself into the first material but not in a uniform way. This causes all kinds of weird friction related issues depending on heat, brake effort. and generally a uneven feel from brake zone to brake zone as well as very loud screaming that was not consistent. I found it very unnerving. This was on my track car so I am not sure if it would have been a issue on a street car.
I had to have the rotors turned to clean them up. If you do this find a brake shop that knows what they are doing and TALK to the guy who is using the turning machine and let him know you only want the surface cleared. Only remove as little material as necessary to make the surface flat and cleared of pad material. We talked and he believed he could do so at about 5-10 thousands per side. That was close to the minimum his machine could take off repeatedly. If i remember right it came in at a total of 6-7ish thou. per rotor. It worked very well.
Have a look at all the hardware and be sure it is all equally tight. Caliper mount bolts, caliper adapter plate bolts, rotor hats if you have them. The squeal is coming from vibration. Usually that means something is moving around. I use a torque wrench on all this stuff as well as the wheel nuts.
I had to have the rotors turned to clean them up. If you do this find a brake shop that knows what they are doing and TALK to the guy who is using the turning machine and let him know you only want the surface cleared. Only remove as little material as necessary to make the surface flat and cleared of pad material. We talked and he believed he could do so at about 5-10 thousands per side. That was close to the minimum his machine could take off repeatedly. If i remember right it came in at a total of 6-7ish thou. per rotor. It worked very well.
Have a look at all the hardware and be sure it is all equally tight. Caliper mount bolts, caliper adapter plate bolts, rotor hats if you have them. The squeal is coming from vibration. Usually that means something is moving around. I use a torque wrench on all this stuff as well as the wheel nuts.
As far as I know our country doesn't regulate pads. The car has less than 500 miles so I'm not sure how bedded they are but Im fine with just putting new pads on and seeing if I need new rotors after changing them.
My issue is not a squeak or light squeal, and it's not a vibration issue -- I did check all mounting and bolt points to be sure. It's the pads doing it under braking and more so when they get warmed up. Under light/moderate/heavy braking, they SCREECH loudly, ear-piercingly loud. It actually hurts my ears in the car loud. The only time they do not make this sound is if I slam on the brakes, they just lock up.
if you didn't bed them in properly then you have probably glazed over the disc.
get the disc off and orbital sand it with 120 grit.
I had to do this on my race car discs.
Jerry
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