Originally Posted by acidfingertips
...Based on research I did long ago, it was stated by several people in the business that Centric (thanks for correction) rotors were used for Powerstop products, and Powerstop certified/tested them...
Yes, with a pro-cut lathe. I imagine that you're familiar that when you install a rotor, and apply a brake pad to the surface of the rotor upon stopping, the best performance is displayed when they mate together on a perfectly parallel plane. Installing with a pro-cut lathe ensures that rotor/pad meet-up are perfect, taking into account the mating of the rotor to the hub. This is common knowledge that installing with a pro-cut lathe is the best practice.
Also, my rotors are warped after nearly 100,000 miles and heavy usage...
We understand you did some research and spoke to some people "in the business." I believe you and your integrity is not in question here. However, I would recommend that you contact Centric (800-758-3004) and Powerstop (888-863-4415) and simply ask them. Though they are competitors and not partners, they are both reputable companies and no doubt will tell you what they told me. Powerstop does not rebrand anybody's rotors and sell them with the Powerstop logo on them. They were emphatic in saying that every product that carries the Powerstop name is designed, tested, manufactured, and distributed by Powerstop alone.
The old adage "right from the horse's mouth" goes a long way here.
I wish I had a dime for every time somebody that I considered reputable and knowledgable gave me false information. I'd be a rich man by now. For example I was told a couple years ago by several reputable shops that a two-piece rotor like mine could not be turned on a brake machine. One fella went on to explain that he'd been doing this 30 years and listed off the names of the brake machines he'd used through the years in several shops he'd worked in. But I found out later that there are indeed shops that can and will cut these two piece rotors, and do a great job at it as well. So much for all the guys I talked to who claimed to know what they were talking about, had years of experience to back it up, but were simply WRONG about the concept of being able to turn a 2 piece rotor.
You said that it is "common knowledge that installing with a pro-cut lathe is the best practice." This lathe may be simply amazing, I don't question your words here. But it's certainly not common knowledge on this forum and it wasn't common knowledge with the brake shops I spoke with personally. I would defer to the collective here to comment on this, but I've never read about it on these pages. My Dodge dealer told me they cut the rotors right on the car. But they didn't mention what KIND of brake lathe they used. Could you shed a little light here on just what a Procut lathe is and whether or not this is used at better Dodge dealers? That would be interesting for sure.
I worked in tool and die shops most of my life. I made a lot of money doing things that other guys said couldn't be done. That was not only the "specialty" of the shops I worked at, but it often fell to me to figure out a way to do the "impossible." I'm starting to digress here, but the point was that just because several knowledgable people make a claim, that doesn't always make it so.
Oh, and concerning your warped rotors, I agree that after THAT many miles, even the best of rotors can and will have issues.