Front Brakes - CCB vs Iron

[Mid_Life_Crisis]

As I understand it, the B8.5 had a standard iron rotor or CCB option. The standard caliper is an 8-pot with 380mmx34mm rotors. The CCB option used a 6-pot (Brembo 19Z) caliper with 380mmx38mm rotors. If you wanted to upgrade to CCB from iron, you'd have to purchase the 19Z calipers. I understand that RedMistRacing sells 380mmx34mm CCB rotors so no need to swap really. https://redmistracing.com/ols/produc...do-lamborghini

However, are the 19Z calipers a better caliper? You'd think that if you purchased the CCB option from Audi that you wouldn't downgrade in the number of pistons in the caliper. What is your opinion on stopping power of the standard 8-pot caliper with RMR 380mmx34mm rotor option vs the 19Z calipers? Are the 19Z calipers easily installed on a non-CCB version or are any hardware (i.e. brackets) required?

There's a company selling a rear brake upgrade kit which uses an R8 356mmX32mm rear rotor and incorporates a 4-pot caliper from a Porsche Cayenne or VW Touareg and a Tesla E-brake caliper. https://voshmods.com/collections/b8/products/b8
You could technically put the CCB rear upgraded R8 rotor from RMR https://redmistracing.com/ols/produc..._CCB_4-FRN-RTR and have a full CCB upgrade on your RS5.

Now, I know folks will say it's a waste (rear doesn't matter as much as front, etc), this is mostly as a topic of discussion at the possibility, should anyone want to do it that's a bit eccentric. Like me.

Cheers!

[points]

If you're talking strictly brake power, the carbon ceramics don't inherently decrease stopping distance all on their own, they just resist fade better than steel rotors. Compared to just the stock 365mm rotor I'm sure there would be some distance improvement. But unless you were endurance racing or maybe headed out to drive 10/10ths on the Nürburgring the difference between a good 380mm steel and the ccb would be negligible. Many Porsche guys who track their cars a lot take the CCBs off their GT cars and run steel rotors and then just put the carbons back on when they sell them so they dont have to pay the premium to replace the rotors. There are also many more pad choices for steel rotors than the ceramics at least from what I've seen when shopping for pads. FWIW, when I had my RS5 on track last fall I ran 365mm 034 rotors, DTC60 pads and Motul 600 fluid and had no brake fade during any of my sessions on a track that has some of the highest speeds anywhere. If I could have fit a 380mm rotor under my track wheels I probably would have for extra insurance but I found the limits of the suspension and tires long before the brakes. You could buy like 5 (or more) sets of girodisc's for the price on one set of carbon rotors. If you do it, to me its purely to have the looks and to say you have them to the 1 person at the local car meet that has any clue what you're talking about. The performance of them isn't really much of a factor.

[s vier]

I’m one of the few who have swapped steel OEM brakes for OEM CCBs. The other options were not yet produced back in 17’ when did it. I’ll just speak to the things I experienced. I had only driven about 6,000 miles on the steels before the swap and only about 12,000 since. The lifecycle of the steels seemed to be about 25-40k miles so the initial investment would eventually pay off down the road. Sold the factory ones for $2k and was not into the swap as bad.
CCB calipers may be 6-pot instead of 8-pot but they are substantially larger. Rotors were 11lbs each instead of 22lbs for the steel. They are coded in for the altered “disc wipe”.
The steering felt immediately crisper. Acceleration felt better. Best two parts though are the ZERO brake dust and zero rust. The rear of my Suzuka is always coated from the remaining steels back there.
I’m looking to upgrade the rears to CCB. I should have jumped on a crazy deal last year but I dropped the ball.

[rusky]

Wow, all good info from use and experience. If you got the means, then why not... just the brake dust being zero alone, is a biggie for most of us I would imagine.

[Mid_Life_Crisis]

So S Vier, so in your opinion, would you say the the 6-pots are better quality and have better stopping power as well over the standard 8-pot? Also, are they a direct bolt on? What pads do you prefer? Lastly, what is "disc wipe"? Thanks for the great feedback btw.

[s vier]

So S Vier, so in your opinion, would you say the the 6-pots are better quality and have better stopping power as well over the standard 8-pot? Also, are they a direct bolt on? What pads do you prefer? Lastly, what is "disc wipe"? Thanks for the great feedback btw.

I’d say that the swap (with the 6-pots) on factory pads bolt right on up. I noticed the steels were extremely sensitive. 1% touch of the brake pedal felt like 20%. CCB’s aren’t as touchy where 1% = 1% and there is a slightly longer range of the pedal throw.

Disc wipe slightly taps the brakes via computer when your rain sensor detects water. It’s undetectable to the driver but it keeps the rotors dryer. They stop a little better when dry. (I used to sell AUDIs about 15 years ago and you learn the weird little details)

[s vier]

If you get them powder coated you can add custom decals (cf Audi square) and then powder clear over them. Cleaning is a breeze and they still look brand new years later.



Sent from my iPhone using Tapatalk

[M’s RS5]

I’ve been putting it off for a while now but I’ve got a Mclaren 650 rear rotor sized 380x34. The offset is within a millimeter but I’ve been too lazy to attempt to fit it. In theory, you can keep your 8-pot and buy Mclaren 575-720 rear rotors, JHM caliper extender, and factory RS3/TTRS CCB pads or another pad of your choice that can be used on CCB. The price last I checked would be only roughly $3000 total.

There are full OEM CCB kits around for about $5000 typically.

[Mid_Life_Crisis]

Thanks M's, so you're saying put the rear Mclaren rotors on the front, keeping the stock 8-pot calipers...I think.

[Mid_Life_Crisis]

I didn't even know they made clear powder coat! The Audi logo looks raised, is it just raised from the decal and the clear powder coat over the decal or is that molded into the caliper? If it's a 19Z caliper I can't image it's molded into the caliper. Thanks S Vier.