Grooved discs.
02 February 2012, 11:55 PM
#32
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The downside of grooved discs is usually a rumbling noise under hard braking , you shouldn't hear or feel it under slow driving , those with the low speed noises , have you cleaned out the calipers or muck and dust before fitting the new pads , copper slip is a good idea where the pistons touch the pads , and the ends of the pads where they fit into the calipers , it sounds like the pads are tight in the calipers , or the pads aren't flat in the calipers allowing the leading edge of the pads to dig into the groove , you should not be able to feel as though you can feel every groove touching the pads , this is why we groove our discs with a curved groove
Cheers Ian
Cheers Ian
I've been listening out for this and it seems like the noise is mainly coming from the front right, so it may be limited to 1 caliper.
thanks for the advice
John.
05 February 2012, 11:13 AM
#34
I've recently fitted the Godspeed grooved disks and kevlar pads to mine, and can't hear them at all. Still bedding them in though, so no hard braking yet! When I removed my old pads (Delphi I think) the slot cut in the pad itself was at an angle, so if that happened to correspond with a groove i guess that might make a noise when the two passed over. Original disks were solid so I didn't notice any noise but if they were grooved then that might have been noisier I guess. Also, I think the curved grooves on the disks help minimise the noise, a bit like helical gears
06 February 2012, 12:02 AM
#35
Just to contribute,I had all my brakes changed the other day.Type R with aztec brake tech mini grooved front discs,and Godspeed grooved rears.Ebc pads and a brake fluid change to dot 5.
Been bedding them in for a few days now and they're silent,most impressed with them.I'm looking forward to giving them a workout when they're ready.
Danny.
Been bedding them in for a few days now and they're silent,most impressed with them.I'm looking forward to giving them a workout when they're ready.
Danny.
06 February 2012, 06:05 PM
#36
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I've recently changed to grooved discs and Orangestuff pads and noticed a 'whirring' sound. It only ever happens if I'm stopping from high speed. No sounds at all from anything under 50mph unles you have to stand on them to stop quickly.
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