Hey all,

After seeing so many raves about R1 Concepts rotors for our cars, I bought a set of 4 of their E-Line series with pads from ebay. I put the rears on yesterday, and took it for a test drive just a few minutes ago.

Well, they have a sort of metal on metal grinding noise when driving, and then the pads make noise when the brakes are applied. I'm 95% sure I didn't mess anything up when putting them on, I've done brakes on GP's at least a dozen times. Another thing, is that the pads are dusting all over the ****in place on the rotor. I'd say half of the pad surface on the rotor has brake dust on it. Anybody have any suggestions?

Do I have to break them in a certain way? I was trying to break them in on the test drive doing gradual stops from different speeds, do I have to just let them settle in some? Thanks all!

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2000 Pontiac Grand Prix GT -- 2008 Series III -- L36 intakes/tb -- K&N FIPK2 -- ZZP 180* -- ZZP PEMs -- GTX style tips -- R1 Concepts rotors -- GMPP STB -- black corners -- system

I had a similar problem but my front calipers were shot had to replace them they wouldn't release All is fine now

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PRJ Tranny W\3.29 ATI 3K stall,PRJ Wires,PRJ Fuel rails,PRJ LL Cam,PRJ Tune, Gen V,ZZP stage 2 I\C core,PRJ FMHE,Meziere I\C Pump,N* T\B,Custom CAI,TOGS Extremes,R\T DP gutted Cat,Autolite 103's,160° T-stat,Lucas 42.5#,and MPS 2.9,Hoosier QTP 12.678@110.82
http://videos.streetfire.net/video/2...Cam_155338.htm

That had crossed my mind on the drive, but I didn't think that they would both go bad at the same time. They were fine with my old brakes. That better not be the case, I just freaking painted the calipers!

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2000 Pontiac Grand Prix GT -- 2008 Series III -- L36 intakes/tb -- K&N FIPK2 -- ZZP 180* -- ZZP PEMs -- GTX style tips -- R1 Concepts rotors -- GMPP STB -- black corners -- system

well I wasn't sure which one was bad as the drivers side really didn't seem to work all that well and I thought the pass side was sticking so @ $25 a side I got both

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PRJ Tranny W\3.29 ATI 3K stall,PRJ Wires,PRJ Fuel rails,PRJ LL Cam,PRJ Tune, Gen V,ZZP stage 2 I\C core,PRJ FMHE,Meziere I\C Pump,N* T\B,Custom CAI,TOGS Extremes,R\T DP gutted Cat,Autolite 103's,160° T-stat,Lucas 42.5#,and MPS 2.9,Hoosier QTP 12.678@110.82
http://videos.streetfire.net/video/2...Cam_155338.htm

What kind of pads are you using? It sounds like the pads are tearing up. I know with the slotted and drilled R1s I have, they dusted up a bit in the beginning, but once the pads settled, the brake dust has been nonexistant.

I am using Posi Quiet ceramic brakes pads with my R1 Rotors.

I have to say I highly doubt it would be the rotors being bad. Do you feel the brakes pulsate or anything when you apply them? Indicating a warped rotor or anything? I would check your pads and see what kind of condition they are in. And are they new pads or ones you had from your prior setup?

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James Shafer 2003 GP GTX St. Louis MO
1.9 Modified Rockers, TOGs, 180 Tstat, PRJ 10.4 Wires, P/P Gen 3, SLP Ram Air Hood/Wizaired CAI, Gen 1 Spoiler, 3.5 Pulley, 18" TSW Mondellos

he has new pads from R1 check the calipers to make sure they are releasing take the tire off have someone hit the pedal then see if the calipers moves after the pedal is released

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PRJ Tranny W\3.29 ATI 3K stall,PRJ Wires,PRJ Fuel rails,PRJ LL Cam,PRJ Tune, Gen V,ZZP stage 2 I\C core,PRJ FMHE,Meziere I\C Pump,N* T\B,Custom CAI,TOGS Extremes,R\T DP gutted Cat,Autolite 103's,160° T-stat,Lucas 42.5#,and MPS 2.9,Hoosier QTP 12.678@110.82
http://videos.streetfire.net/video/2...Cam_155338.htm

Well, my dad drove it earlier tonight and said it wasn't making as much noise like I heard. He did say the pads are leaving a noticeable amount of brake dust. I think I'll just drive it for a few days and see if it gets any better. Thanks all!

Edit : I'm not certain that my calipers are stuck up, because I hear the pads coming in contact with the rotors when I press the brakes, and letting off when I release. But....I'll observe over this week and see in a few days

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2000 Pontiac Grand Prix GT -- 2008 Series III -- L36 intakes/tb -- K&N FIPK2 -- ZZP 180* -- ZZP PEMs -- GTX style tips -- R1 Concepts rotors -- GMPP STB -- black corners -- system

I can tell you that if you are using semi metalic pads, they will leave ALOT more dust than the ceramic pads. I would bet you have the semi metalic which will also make make some noise with these rotors.

webracin

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2001 Grand Prix GTP
ZZP HUB 3.2 3.4, ZZP 8 Rib conversion, JC 3" DP Gen 2 cat & U-bend Delete, Accel Super Stock 8mm wires, DHP 1.5, 180* Thermo, Throttle Spacer, SS Intercooler, ZZP Fuel Rails, SLP CAI w/K&N Cone, Dynomax cat back, ZZP Tranny.

2000 Grand Prix GTP Daytona K&N, Flowmasters

^^^^^^ What he said.

If they are metallic, they are gonna be a bit more nosiey than ceramic, not by much but enough to notice. And the dusting is night and day compared between the two.

I am glad to hear the noise has lessened. It might just be the pads trying to "bed" against the new rotors. Metallic pads are gonna be more crunchy the first time or two out. If they are metallic truly, you are always gonna have that dusted look on your rims till you switch over to Ceramics.

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James Shafer 2003 GP GTX St. Louis MO
1.9 Modified Rockers, TOGs, 180 Tstat, PRJ 10.4 Wires, P/P Gen 3, SLP Ram Air Hood/Wizaired CAI, Gen 1 Spoiler, 3.5 Pulley, 18" TSW Mondellos

Yeah, they're definitely quieted down today. It's just they dust like an SOB though!!!!!!! The pads I got were whatever pads that came with the rotors. So, I think I'm going to buy a better set of ceramic pads before I do the fronts over the weekend. Thanks for all your input guys!

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2000 Pontiac Grand Prix GT -- 2008 Series III -- L36 intakes/tb -- K&N FIPK2 -- ZZP 180* -- ZZP PEMs -- GTX style tips -- R1 Concepts rotors -- GMPP STB -- black corners -- system