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The bigger brakes I agree aren't needed and I'm the first to say most of the time bigger brakes increase unspuring weight and hurt performance (same for larger wheels). The new tech is lighter and I think can be a weight savings even with the larger wheels. There is a smaller option with pccbs but they are more expensive, and the smaller rotor sizes ceramic brakes don't last/seems they fail more often. These larger ccm rotors seem more durable. So increased size for rotor durability and still get weight loss... My car is faster with lighter wheels/tires, just looking for the weight savings (and benefits of longer life/less brake dust etc. hopefully 19" tires don't cause loss of performance. At least that's what I'm thinking currently.
The weight saving is only one of the advantages of CCM. If you read my publication comparing between CCM and Iron (link below) you will notice #6,7,8,9 are the most distinguished characteristics that are needed in today's super muscle cars braking that can't be substituted with traditional iron rotors.
Reading tip; Yellow is in favor of Iron, Green is in favor of CCM
We also offer iron replacement for ZR1 and Camaro Z28 which come with factory CCM brakes, but very few replacing to iron like guys with pccb.
Why? my observation is those pccb in early years not only the material was not well made, but the sizes was simply inadequate: 350x34/350x28 or even 380x34/350x28 was way too small (volume wise*) compare to modern CCB.
* See footnote about CCM will run ~25% higher in temperature than Iron (with same size/volume)
Porsche 991 GT3 pccb: 410x36/390x32
Audi R8 (2016): 420x40/360x32
BMW M3/M4 CCB option (2015+): 400x38/380x28
BMW M5 CCB Option (2015+): 410x38/396x26
Ferrari F458 (default): 394x36/360x32
Mercedes S/GTS:402x39/360x32
Viper ACR-Extreme (default): 390x34
As you can see nothing is smaller than 390x34, and the brake pad is huge (190x85mm vs. 997 GT3's 65mm).
We also noticed those early pccb the rotor hats are made of stainless steel like Ferrari F430/F360, so it adds 3/4 lbs each back to the rotor assembly, so although they are small but actually weighs more than those modern larger CCM rotors with aluminum hats.
We have done extensive research for various OE CCM set up before we started developing those kits for 911, and believe this is the ultimate CCM brake system for all Porsche owners to enjoy the latest braking technology w/o the worry of fragility, and scary rotor replacement cost charged by Prosche dealers.
We will also have iron replacement rotors as back up in case you are still not quit used to run "CCM" only set up like Corvette/Camaro guys.
Some members inquired about the possibility disc upgrade to ST, and the answer is yes, as we have ST made to our specs which are the same exact mounting PCD and offset as ZR1 and they are in stock (as seen on pictures), so both ZR1 and ST discs are 100% interchangeable (can use the same hats)
We are also developing iron conversion rotor kits with the same exact dimensions as CCM rotors, so you can swap between your CCM and Iron anytime you like in case you don't want to keep CCM rotors on all the time.
ST discs are in stock. PM us for this upgrade option if you are interested.
03-24-2016, 03:57 PM
