Does anyone know the advantage and disadvantage of new p30/31 rotor
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Joined: Aug 2010
Posts: 122
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From: Houston, TX
2009 C63
I am clearly not going to detail the subcontractors that we use to do bits and pieces of our work.
Like most all businesses, we outsource much of our work. We have a full fabrication facility in house, however, for production items, they are sourced out to production houses. One such house is where UUC arrived and asked the owner to take our BMW pulleys and put their name and sell them to him.
As far as the rotors, we do the process in house along with our manufacturer. We examine the vehicle and the available disc options. This is limited by fitment with stock calipers. We then select and machine the rotors and hats and assemble with the highest quality fasteners.
The raw discs that others use, including UUC, may be from the same maker, however, the complete product is not, that I know for certain.
thanks
brad
Like most all businesses, we outsource much of our work. We have a full fabrication facility in house, however, for production items, they are sourced out to production houses. One such house is where UUC arrived and asked the owner to take our BMW pulleys and put their name and sell them to him.
As far as the rotors, we do the process in house along with our manufacturer. We examine the vehicle and the available disc options. This is limited by fitment with stock calipers. We then select and machine the rotors and hats and assemble with the highest quality fasteners.
The raw discs that others use, including UUC, may be from the same maker, however, the complete product is not, that I know for certain.
thanks
brad
Last edited by TexasEngineer; Dec 17, 2010 at 06:52 PM.
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From: Huntington Beach, CA
None fast enough!
I cannot speak to their product, only our own. Sorry this might not answer everything, but I try not to state things that I cannot support 100%.
If you want to talk in more detail please feel free to call me anytime!
Thanks
Brad
If you want to talk in more detail please feel free to call me anytime!
Thanks
Brad
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2003 C32, 2006 Lotus Elise
Oh! I guess I feel better. 
I wonder what they were in my C32. I don't recall a rotor change and they must have happened because the thing has 240,000 miles on it. I think I'd recall a 4,000 brake job.
I wonder what they were in my C32. I don't recall a rotor change and they must have happened because the thing has 240,000 miles on it. I think I'd recall a 4,000 brake job.
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C63 AMG
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C63 w/p30; MHP ECU tune+header+mids+CF air intake duct+Akrapovic+wide body kit+ Vorsteiner VS110
The best price is not always the best deal. Especially when it comes to brakes. Having all that power is sure nice, but having brakes you can trust and rely on, is more important. I for one, wouldn't want to find out what it feels like to be a passenger because of brake failure.
I would never compromise on brakes, wheels or tires to safe a few dollars.
I would never compromise on brakes, wheels or tires to safe a few dollars.
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From: Taiwan
C63 w/p30; MHP ECU tune+header+mids+CF air intake duct+Akrapovic+wide body kit+ Vorsteiner VS110
1. No. The friction may be high (the are “tight”), but they are not bonded/fused together (this requires a lengthy metallurgy explanation, and I don’t have time, sorry). The casting can be designed to have specific tolerances, and I am sure that there are. Sacrificial pieces can be included in the casting to maintain gaps where needed.
2. The inward stubs would expand toward the middle, but the rotor, a ring, would expand at a higher rate(it is larger, so it will have more thermal expansion). When a ring under goes thermal expansion, both the inner and outer radii increase. The net affect will be that the stubs will move away from the hat, because the inner radius expands at a greater rate than the stubs. I could not get the file to open for some reason.
3. Yes the deformation of the hat should provide some floating effect.
I would like to make a note that I am note claiming that these work better than a standard two piece floating rotor. I am claiming that they work similarly.
2. The inward stubs would expand toward the middle, but the rotor, a ring, would expand at a higher rate(it is larger, so it will have more thermal expansion). When a ring under goes thermal expansion, both the inner and outer radii increase. The net affect will be that the stubs will move away from the hat, because the inner radius expands at a greater rate than the stubs. I could not get the file to open for some reason.
3. Yes the deformation of the hat should provide some floating effect.
I would like to make a note that I am note claiming that these work better than a standard two piece floating rotor. I am claiming that they work similarly.
Does anyone know the prices for both old two-piece-rotor and new one?
If both are the same, and new one does not necessarily better than the old two piece one on "performance", why there are more and more car makers use this new rotor?
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CLK63 Black Series
Thanks! I got more clear picture on technical side!
Does anyone know the prices for both old two-piece-rotor and new one?
If both are the same, and new one does not necessarily better than the old two piece one on "performance", why there are more and more car makers use this new rotor?
Does anyone know the prices for both old two-piece-rotor and new one?
If both are the same, and new one does not necessarily better than the old two piece one on "performance", why there are more and more car makers use this new rotor?
The old 2 piece rotors are more expensive to manufacture, since more hardware is required and manual labor is involved to assemble them. Also, the old style rotor can be disassembled to change the disc, but the aluminum hat can be re-used. These days everything is about cost cutting, hence the move to the new style rotors.
It will be cheaper for the car manufacturer to buy these hew style rotors from Brembo, but that doesn't mean that they will pass on the savings to you when it's time to exchange them out of warranty
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2009 C63 AMG
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From: Taiwan
C63 w/p30; MHP ECU tune+header+mids+CF air intake duct+Akrapovic+wide body kit+ Vorsteiner VS110
This could be minimun life since I enjoy the mountain route and hit them verd hard! If just for daily drive, three times more than I had is very easy to have!
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2012 C63;1971 280SE 3.5(Sold);2023 EQS 450 SUV 4 Matic (Wife's)
I just checked out Get Mercedes Parts and they list the
Rotor, c63 amg, w/amg performance pkg.
08-10 $985.00
and sell it for $738.75.
It is likely MB has upgraded the older rotors to the newer ones and no longer supply the older 2 piece style. I don't know this for sure it is just a guess on my part.
Rotor, c63 amg, w/amg performance pkg.
08-10 $985.00
and sell it for $738.75.
It is likely MB has upgraded the older rotors to the newer ones and no longer supply the older 2 piece style. I don't know this for sure it is just a guess on my part.
Thread Starter
Senior Member
Joined: Apr 2010
Posts: 314
Likes: 0
From: Taiwan
C63 w/p30; MHP ECU tune+header+mids+CF air intake duct+Akrapovic+wide body kit+ Vorsteiner VS110
I just checked out Get Mercedes Parts and they list the
Rotor, c63 amg, w/amg performance pkg.
08-10 $985.00
and sell it for $738.75.
It is likely MB has upgraded the older rotors to the newer ones and no longer supply the older 2 piece style. I don't know this for sure it is just a guess on my part.
Rotor, c63 amg, w/amg performance pkg.
08-10 $985.00
and sell it for $738.75.
It is likely MB has upgraded the older rotors to the newer ones and no longer supply the older 2 piece style. I don't know this for sure it is just a guess on my part.
