Slotted/drilled rotors supposed to be noisy?

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Jul 10, 2009 | 01:41 PM

#11

blk05stang

Thread Starter

2nd Gear Member

Joined: Jan 2006

Posts: 311

From: Illinois

Quote:

Originally Posted by NJ3

Yes it's normal. The Granatelli rotors are actually EBC GD (Grooved and Dimpled) series rotors. The noise comes from the dimples and is the reason I got rid of mine. I now use EBC USR series rotors and have no noise from my brakes.

What does USR stand for?

Jul 10, 2009 | 02:37 PM

#12

NJ3

3rd Gear Member

Joined: Dec 2006

Posts: 523

From: Chesapeake, Va.

Quote:

Originally Posted by blk05stang

What does USR stand for?

"Ultimate Slotted Rotor", or "Ultimate Silent Rotor" I dunno. lol Click on the link for more info on them. http://www.ebcbrakes.com/automotive/...d_rotors.shtml

Last edited by NJ3; Jul 10, 2009 at 02:41 PM.

Jul 10, 2009 | 04:47 PM

#13

blk05stang

Thread Starter

2nd Gear Member

Joined: Jan 2006

Posts: 311

From: Illinois

Quote:

Originally Posted by NJ3

"Ultimate Slotted Rotor", or "Ultimate Silent Rotor" I dunno. lol Click on the link for more info on them. http://www.ebcbrakes.com/automotive/...d_rotors.shtml

Cool thanks for the link. I'll probably just live with it now that I know it's normal. I was more worried that I screwed up the install somehow.