02-20-2008, 04:31 PM
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#1
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Registered User
Join Date: Feb 2008
Location: Du Monde
Posts: 2,199
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Base Boxster OEM non-drilled solid discs new:
front rear
24mm 20 mm
Brake discs Minimum thickness after machining*
front rear
22.6 mm 18.6 mm
* (from Porsche Workshop Manual) The brake disc may be reworked only symmetrically. ie. from both sides evenly - important point - don't just turn one side, take the material evenly from both sides!
Wear Limit
front rear
22.0 mm 18.0 mm
These are the specs for the Base solid discs. But, IMO, you should go by the 'S' specs as these are the ones the Zimmerman aftermarket discs are imitating.
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02-20-2008, 04:56 PM
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#2
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Registered User
Join Date: Jul 2006
Location: Where the Sewer Meets the Sea, CA. USA
Posts: 2,695
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Quote:
Originally Posted by Lil bastard
These are the specs for the Base solid discs. But, IMO, you should go by the 'S' specs as these are the ones the Zimmerman aftermarket discs are imitating.
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Ah ok, Well on Thursday ill be at there shop working on there PC so ill have them measure the rotor thickness... OH BTW we did cut both sides evenly. If the outter section needed another 1000th of an inch cut, we cut the inner side another 1000th of an inch.
Ill post my measurements thursday nite.
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02-21-2008, 04:24 PM
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#3
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Registered User
Join Date: Feb 2008
Location: Louisiana
Posts: 70
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slightly off topic, do you have a non-s ? If so how much where the drilled and slotted brakes? Next time I replace my rotors, I'd like to go slotted.
Thanks
Nick
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02-21-2008, 08:25 PM
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#4
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Registered User
Join Date: Jul 2006
Location: Where the Sewer Meets the Sea, CA. USA
Posts: 2,695
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Quote:
Originally Posted by SinnerDC2
slightly off topic, do you have a non-s ? If so how much where the drilled and slotted brakes? Next time I replace my rotors, I'd like to go slotted.
Thanks
Nick
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Didn't get a chance to measure rotor thickness but sinner, I paid 310 shipped for front and rear x drilled & slotted Zimmerman rotors from an ebay vendor.
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03-05-2008, 07:15 AM
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#5
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Registered User
Join Date: Feb 2007
Location: mandeville, la
Posts: 474
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Slightly off topic, but do you mean.. you cut 1/1000 of an inch five times to be the same as 5/1000 of an inch?
1000th of an inch (1/1000) us much larger than 5000th of an inch (1/5000), though in wording they sound the same, in writing they are totally different. If you cut were aiming to cut 1/5000 and you cut 1/1000 once, twice, four , or five times, you cut too much.
Is it obvious that I am at work?
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03-05-2008, 07:38 AM
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#6
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Registered User
Join Date: Jul 2004
Location: Houston, Texas
Posts: 7,243
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I had no idea one could warp a rotor by over-torquing wheel bolts, but it sure does make sense!
I bought a torque wrench off ebay a while back and I am now seeing that it may be the single most important tool I own for my boxster.
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03-05-2008, 07:46 AM
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#7
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Registered User
Join Date: Feb 2008
Location: Du Monde
Posts: 2,199
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@Randall - You sure can, very easy to do. This is why you should never use an impact wrench to replace the wheel bolts (and insist that your shop doesn't either, despite what they may say).
These are too prone to over-torque the bolts due to variances in the air pressure and gauges. They will produce significant differences in torque between all 5 wheel bolts.
Impact wrench is OK for removal, but always replace manually, using a torque wrench for final tightening in a cross pattern.
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