Slotted/drilled rotors supposed to be noisy?

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07-10-2009, 01:41 PM

#11

blk05stang

2nd Gear Member

Thread Starter

Join Date: Jan 2006

Location: Illinois

Posts: 311

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?

07-10-2009, 02:37 PM

#12

NJ3

3rd Gear Member

Join Date: Dec 2006

Location: Chesapeake, Va.

Posts: 523

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; 07-10-2009 at 02:41 PM.

07-10-2009, 04:47 PM

#13

blk05stang

2nd Gear Member

Thread Starter

Join Date: Jan 2006

Location: Illinois

Posts: 311

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.