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Old 12-19-2009, 07:27 AM   #1
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Thanks to all

Seems like the Zimmermans for the street are OK. As I said, I had them on my 911 and experienced no trouble. Some of you have had cracking problems and some of you have driven them hard on the track with no trouble. Curious!

Tire Rack has ATE rotors with a long curved slot not unlike the symbol for nukes at a reasonable price. They are under "Slotted and/or drilled high performance street" category along with the caveat, 'these rotors should not be used for racing or DE style track work'.

How how about pad recommendations for these type of rotors, I have heard that Metal Masters are decent and don't dirty up the wheels as much as stock. Any thoughts along these lines?

AKL
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Old 12-19-2009, 11:09 AM   #2
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New Drilled Ones Installed

I just replaced last month all the rotors and pads. I do not track all, I just wanted a smoother stop since my Boxster has 68K on it. I purchased my parts from Pelican Parts, Balo rotors and Mintex pads. She now has a very smooth stop, it was a major difference. Rotors and pads plus I flushed my brake system...spent about $450. You do not need to buy caliper bolts. Use a good Locktight on the threads. The Balo's are German made and I compared to the one original ones that I took off...they were the same.
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Old 12-19-2009, 10:20 PM   #3
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$20 for 8 new caliper bolts... why not do it up right?

Quote:
Originally Posted by jcb986
You do not need to buy caliper bolts. Use a good Locktight on the threads.
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Old 12-20-2009, 01:48 PM   #4
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Quote:
Originally Posted by sd_boxster
$20 for 8 new caliper bolts... why not do it up right?
Caliper bolts DO stretch over time, that's a fact.
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Old 12-21-2009, 08:17 AM   #5
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there is a long discussion about the bolts on here somewhere. To sum it up.... A new bolt, after torque, streches to maintain tightness, after you remove it, it does not return to its normal length. So you cant get the same torque as new.
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Old 12-21-2009, 09:10 AM   #6
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Quote:
Originally Posted by sd_boxster
$20 for 8 new caliper bolts... why not do it up right?

Pelican was more like $32. Talked with the Porsche Dealer here and most of mechanics do not replace them. Also verified that info with Suncoast Porsche. Now if it stretches that much then why doesn't the service tech guys at Porsche dealership change them every time when they need to remove a caliper. And believe or not all metal stretches and flexs...if it didn't, it would break. Of course, I will know soon as I listen to hear if my calipers are making any noises. Let you guys know the outcome after a few thousand miles.
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Old 12-26-2009, 05:26 AM   #7
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zimmerman rotors:

http://forums.bimmerforums.com/forum/showpost.php?p=18112742&postcount=18
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