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  #11  
Old 14-03-2011, 10:46 AM
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Quote:
Originally Posted by xt43 View Post
alternatively pm american dave for a bedding in procedure.
gold!
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  #12  
Old 14-03-2011, 11:13 AM
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Quote:
Originally Posted by JDM_STYLE View Post
Yeah lucky you, how does this help the OP?

The reason I mentioned glazing on the rotor and suggested getting them skimmed was to try and see what was actually causing the squeal, if they get skimmed and they still squeal then its the pads etc.

Was just saying, maybe not the root cause of the problem. The process of elimination is a wonderful thing though, except when it costs! (Ahh memories from by Brant Alarm)

If the rotors still have heaps on them, i'd be more inclined to put new pads in first than take a skim off the nice DBA5000's.

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  #13  
Old 14-03-2011, 12:09 PM
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Many things contribute to the problem so best to try the cheapest and easiest thing first, its only $70 and if your going to put new pads on will be better to have a nicely cleaned face on the rotors so they can bed in properly instead on trying to bed in on glazed rotors.

They take of the smallest amount when skimming so its not going to affect the nice DBA5000's.
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  #14  
Old 14-03-2011, 12:24 PM
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Also its always best with new pads to bed them into a clean flat face. Ensures flat wear across the pad also even wear across the 2 pads.
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  #15  
Old 15-03-2011, 03:18 PM
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Been suggested that its resonance between the pad back plate and the caliper shims by the guys I buy my pads from. Going to whip the pads out and try using a bit of copper high temp grease on these. Not convinced but we will see....
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  #16  
Old 15-03-2011, 03:28 PM
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Some good info here
http://www.mrtrally.com.au/performance/brakes1.htm

Quote:
Brake squeal
Often a misunderstood problem. Squeal is high frequency vibration often between pad and disc. Most pads have built in "anti squeal shims" or as well as on the calliper. "Anti Squeal" paste or fluid can be used, but resist applying to the friction surface, as it is then also anti brake! It is simply often a way to absorb the vibration. Machining the disc can often rectify the fault. OR in some cases, a big long HEAVY brake, as it may be poor surface, or be careful a situation where the pad has become shiny like a mirror and loses its grip. To fix this, removal of the pad to remove this shiny layer is needed.
This stuff works a treat too. Supercheap should have this or something similar.
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  #17  
Old 15-03-2011, 03:31 PM
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I whip my pads back and forth
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  #18  
Old 15-03-2011, 04:19 PM
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Feredo DS2500 on stock rotors
also have very light squeal when lightly braking but goes away if you press the pedals harder
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  #19  
Old 15-03-2011, 06:18 PM
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AP Racing 6 pot calipers with 362X32mm rotors and DS2500 pads.
I go through the windscreen when braking lightly.

Wait, what was this thread about?
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  #20  
Old 16-03-2011, 10:35 PM
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Hey guys,

A1RM, being the type of pad they are, will sometimes suffer from some noise in opposed pistons calipers (like the Sumitomo and Brembo, which unfortunately is most performance Subarus!). They RARELY make a noise in single sided sliding calipers, but as with alot of high performance pads, opposed piston caliper don't always agree with them.

The best thing for noise (which is caused by harmonics between the backing plate and the caliper itself) is a soft stick on shim kit, EBC make a universal one (similar to what EBC and TRW pads come with standard), and they're $16.50 per axle set. The goo stuff is ok but is generally only a temporary fix.

Have a read of this post:
http://www.perth-wrx.com/vb/showpost...5&postcount=24
As it explains the pads we're replacing HPX with for high performance street use, and is VERY good on noise, especially in opposed pistons cars, and we sell stack of Remsa for Porsche/Fezzas etc that use race type calipers on the street, but where their owners would never put up with noise.

Otherwise if you plan to keep A1RM as your street pad, either flog the crap out of the pads, turn up the radio, or grab a set of soft stick on shims.

Any questions at all just let me know!

Regards,
Greg
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