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Old 02-23-2010, 08:21 PM   #1
Imprezme05
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Member#: 120924
Join Date: Jul 2006
Chapter/Region: SWIC
Location: depends where she lives
Vehicle:
2006 WRX Lmtd Wagon
Should be IMPREZme06

Default Should I machine the rotors?

I had RacingBrake rear pads installed after 68,000 miles on the stockers. I had the fronts machined and pads replaced around 33,000 miles. Do I need to machine the rears since majority of the weight and stopping power is on the fronts?

If so, who does SWIC recommend for machining?

Thanks,

Chris
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Old 02-23-2010, 09:29 PM   #2
BoostInc
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Location: NM
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1994 Legacy SS
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yes machine them, it will only cause more problems in the future if you dont. Any basic auto store or shop should be able to cut them and not **** them up. napa does a good job or any little mom an pop shop should do it to.
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Old 02-25-2010, 10:11 AM   #3
thegreg
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Location: az
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2004 WRX STi
PSM

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Machine the rotors if you are replacing the pads, or if they are getting glazed. Approx 80% of your braking, if mostly stock, is done on he front brakes. Rears really only engage under emergency stops.

If the rotors are getting glazed, but pads have still decent life, you can cut the rotors and scuff up the pads to get a rough surface on them again.

Matching the surfaces of the rotors and brake pads is the key to good safe, efficient braking.
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Old 02-25-2010, 10:12 AM   #4
thegreg
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PSM

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Machine the rotors if you are replacing the pads, or if they are getting glazed. Approx 80% of your braking, if mostly stock, is done on he front brakes. Rears really only engage under emergency stops.

If the rotors are getting glazed, but pads have still decent life, you can cut the rotors and scuff up the pads to get a rough surface on them again.

Matching the surfaces of the rotors and brake pads is the key to good safe, efficient braking.
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Old 02-27-2010, 03:31 AM   #5
Clur
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RESURFACE!!!!.. besides obvious reasons already stated.. your brakes will tend to squeak later on if not resurfaces.. takes like 2 hours... drop them off go eat or take a nap..
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Old 02-27-2010, 09:27 PM   #6
Imprezme05
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Should be IMPREZme06

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Thanks, works for me! Any good places that are less than a Stealership out there???
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Old 02-28-2010, 07:00 PM   #7
dan az
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if the rotors are not grooved or anything and you can feel warping in the pedal or steering wheel then I would always suggest trying garnet paper first, as typically a rotor never actually warps.
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