599 gto ccm brake disc

According to my own experience, there is no reliable method to estimate it.
The less bad one is to weight them.
The fact that the surface is rough tells you that the wear of your pads should be higher, it could be a clue but there is no reliable method as for the steel ones.
Don’t trust the wear given by the car: on CCM gen 1 cars, the algorithm was not very accurate (for mine: 64% and the weight was 10g under the min value).

If you track it a lot, it seems to be important to do slow laps every 5 laps depending on the track, to prevent brake overheating (don’t know if it has to be the case for the GTO as I presume cooling has been improved). For 599 and 612 (which had been designed with steel brake discs) if you don’t do that, gen 1 CCM discs can be destroyed quickly. According to my personal exchanges with owners, things seem to be different for F12 and CS, as they have been designed for CCMs (F12) or due to their light weight (CS).

 

I examined the rotors on a well tracked 599xx and spoke to the owners. Those rotors were incredibly rough and I thought they needed immediate replacement but was told they had at least one good track day left. As a result, the rough surface method has at least some validity. New OEM CCM rotors are almost as smooth as glass.

 

Here was mine (left). Not very rough, no major pads wear, but 10g under the min value.

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I had the chance to perform 5 laps in a GTO last September: I can say that even if the car has a certain weight, it brakes very hard. More than the grip, I was very well surprised by the brakes. But it’s true that the track was not very requiring for the brakes. This day, the car had been tracked all day long without any issue. Check the fluid, according to me.

 

While I have never driven a GTO, I would imagine the weight to be close to the standard 599. I have driven my 599 well over 100mph and I must say that the CCM brakes are well up to the task of stopping the car quickly. My brakes are still smooth to the touch and have more than enough grip in regular driving.

 

October 2020, I spoke with Brembo about how to know if their CCB rotors needed to be replace since I was looking at a Porsche Turbo S and the CCB rotors looked bad but I didn't know anything about determining that and it is a $25k job for a full replacement at Porsche. Brembo told me a few things and then put me in contact with Carboteq. I spoke with them and they said they had a tester that used test points on the Brembo's CCB rotors and their meter could determine if you needed to replace the rotors. From speaking with Brembo and Carboteq, they indicated that determining replacement was done by a variety of metrics but the 3 main items were 1) Visually, if the CCB rotor looked like alligator skin and was crackled, the brake rotors were cooked and needed to be replaced (this is what they looked like on the Porsche), 2) If they weren't cooked, then determine the weight, they had to be weighed and then determine the weight variation from the manufactured weight, if the difference is over the replacement wear weight, replace them, 3) If they are within the wear weight replacement value, then you have to use the Carboteq meter to determine the CCB Rotor quality to determine if they need replacing.

I cannot verify ANY of this because I am not a expert in these technologies, but this is what I was told from Brembo and Carboteq about determining when to replace the CCB rotors. That's all I can offer, but if anyone else has input, please let me know. Thanks.

 

they are not comparable...
the disc on the left is a Brembo CCM short fiber, the one on the right is a CarboTech CCB

 

Does carbotech manufacture discs? I can only find pads on their web site.

 

The one on the right comes from Carbobrake (Germany).

 

Right !
je couldn't modifiy my text...
https://www.carbobrake.com/

 

Interesting, I have a 599 HGTE and I find, compared to my 911 gt2, the stopping power is definitely not near as good. Again, it may be all relevant to what it’s being compared to, but I have found myself hitting the brakes hard in my 599 and it doesn’t seem to stop as fast as I expect. I will say the car gets up to 120mph extremely fast…so it could also be a matter of speed…car is just so damn fast you don’t realize how fast you are going when you brake. The 997 911 gt2 is like a race car…you know exactly how fast you are going.


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You are correct. AND the 599 weighs a LOT more than the GT2. That alone makes a big difference in perceived stoping power.



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My thought exactly.

 

Weight distribution has a lot to do with it, too.

 

I totally agree with the above. I am a little disappointed with the brakes on my HGTE too, but as you say, the car is so fast and i never have time to look at the speedo, just,
" christ its fast, i better brake now, ****, ****!, quick change down 5th, 4th, 3rd,2nd, freakin hell!, you stupid bstrd!!!, nothing coming, round and out, back end squirming and twitching as i accelerate out ".
My hands literally shake when i get out of the 599!
At least the back end stays stable under heavy braking, not like the Mercedes C63, god that car used to shake it tail feathers!