Hey Guys,
I know a fair bit about CCM brakes but my brakes Manager knows a lot more than I do. He has worked for numerous professional race teams in NASCAR, Indy and other series. His knowledge is much better than mine so I have asked him to answer some of your questions. His answers are in red:
“How do these CC Rotors feel cold? Do they stop as good as cast Iron without much heat in them? As you know the GT bake ducts are non function. Brake Rotor heat and dissipation are always a concern.
Carbon-ceramic matrix (CCM) rotors bite about the same when hot or cold. It’s the carbon-carbon (C-C) racing brakes that lack cold torque. Since the CCM rotors are much lighter than iron, they will get hotter for the same amount of brake energy dissipated into them. The rotors generally do not have an issue with this, but the pads and caliper run a little hotter in comparison. Since we have not seen heat issues with the Ford GT brakes,
It's my understanding that the CC rotors like a little heat and do a better job dispersing the heat. With that said for street driving and an occasional track day would the CC brakes be better than cast iron if the brake ducts were not open.
Again, no problem when cold for CCM. We would recommend routing brake ducts, but you will want to direct more air to the caliper than the disc. This is the opposite of what you would do for iron rotors.
I have spent a lot of time looking at the stock calipers and what's out there for CC brakes and rotors. If the stock calipers were to be used the pistons and seals would need to be upgrade. It would be a tight fit to get the appropriate CC compatible pads and a CC rotor stuffed in to the stock Caliper.
Depending on the seal material used for the OE Brembos, they might have to be changed. Luckily, it’s not that big of a job. There are no clearance issues due to changing to properly-engineered CCM rotors, but it is yet to be determined if the OE pad is large enough to support its use on a GT with OE-sized CCM rotors.
I am very interested to see what you come up with. I say if you are going to do it " Go big or Go Home " I have no problem going to a 19" wheel up front to make this work ...
We can always make it bigger, but then it would be more expensive, require larger wheels and less people would be interested in the kit.
Keep us Posted on any further details. I think there would be more interest if the pricing was in the $ 10K to $12K range.”
If new calipers are required (as they well could be to get a larger pad area), then the price will be higher than $15k, not lower. CCM brakes are definitely not for everybody. Even Porsche charges about $15k for the upgrade – after they take off the original brakes. At least they would go for much less than for what Nissan charges for the Spec-V CCM brakes -- $49k!!!
