Rotor machining in Brisbane.

[!Gn|T|0n]

Good morning all.

I’m after recommendations regarding places around Brisbane (preferably inner south where I work or inner north where I live) where I can get my DBA cross drilled and slotted rotors competently machined. Has anyone had any good experiences anywhere? I have quite a pronounced brake shudder, which I feel mostly in the wheel.

How much should I expect to pay?

Thanks.

[Lightning Strike GT]

There is a place on Rode Rd in Chermside opposite the Prince Charles Hospital I can not remember the name of the place

[tufLTD]

Be careful when getting slotted rotors machined. Most brake lathes won't cut them properly, the cutting bits jump on the slots. Getting them surface ground is a better way to go, like they do with flywheels.

[Biggoggs]

Wow, you managed to warp cross-drilled and slotted rotors?

Maybe you should get one of those Brembos with half a dozen pistons

[!Gn|T|0n]

I've read conflicting opinions on the effectiveness of machining slotted rotors. tufLTD, would you explain to me the difference between machining and surface grinding? Does the former use a wheel / flat disc and the latter a blade? Essentially, they're no good the way they are. I do not drive the car hard. It either lives in the garage or does stop start driving to and from work for the majority of the time. I avoid driving through puddles when the rotors are warm, wait for them to cool before hosing them when washing the car... basically I treat them much better than the average person I'd wager and still they've done me wrong after.

[tufLTD]

Machining uses a lathe with 2 cutting bits, one for each side of the rotor.
Surface grinding uses a flat rotating grinding wheel. The rotor is mounted on a flat bed. This method seems to produce a better finish on cross-drilled rotors.
Warped cross-drilled rotors isn't uncommon. My boss has warped his front & back rotors on his Commodore & we've had a few customers with the same problem.