[F32Fleet]

Originally Posted by clar

I will take ceramic brakes over steel anyday of the week. I dun care for the weight savings or fade resistance as those dun mean a whole lot for street driving. The absence of brake dust alone does it for me!

what about the thousands of dollars in replacement costs?

[phoenixbmwlife]

Originally Posted by F32Fleet

what about the thousands of dollars in replacement costs?

He prob doesn't care about that either.

[IB M]

Originally Posted by F32Fleet

what about the thousands of dollars in replacement costs?

Seems like there is basically no replacement costs for normal street driving.

CCB Maintenance Costs http://f80.bimmerpost.com/forums/sho....php?t=1302752

[adc]

So, silly question: how do you replace the pads on the front carbon ceramics?

[N & M]

Originally Posted by clar

I will take ceramic brakes over steel anyday of the week. I dun care for the weight savings or fade resistance as those dun mean a whole lot for street driving. The absence of brake dust alone does it for me!

If we are talking street driving, you have to note the excessive noise and grabby feel and action compared to the compound ones.

I liked them for hard charging on the track but prefer the compound set for day to day driving.

[MRV99]

We are not talking about frugal cost savings per mile. This is showing that a CCB can be retrofitted. As I spend more time going to the track we all know speed cost money. If you want to go fast(er) you need to spend money above and beyond common sense. Great job showing this can be done.

[MrBucket]

Originally Posted by 03BeastCharmer

Crazy the calipers are that much more robust/heavy.

You can see they are a 6 piston design in the front vs the stock 4 piston Brembo calipers, and the the rear you can see it's a 4 piston caliper with the stock 2 piston Brembos.

[vladberca]

This is a great upgrade! Can't wait to see the wheels choice! 😊

[clar]

Originally Posted by N & M

If we are talking street driving, you have to note the excessive noise and grabby feel and action compared to the compound ones.

I liked them for hard charging on the track but prefer the compound set for day to day driving.

I experienced crazy ass CCB brake squeal with my previous Speciale. It was mostly caused by the resin being cooked due to several punishing track sessions. On my M5 however, the CCB has been exemplary. While they do occassionally squeal a little, they tend to clean itself after a while. Where I am, brake temperature isn't an issue on cold starts. I do not experience grabby brakes on my M5. If cost is not an issue, I strongly recommend CCB. I love to wash my own cars and I can tell u the ugly sight of brake dusts on newly washed car after a short drive is very annoying

[M3 Adjuster]

Originally Posted by F32Fleet

what about the thousands of dollars in replacement costs?

He is already willing to paythousands for no dust. : It's total vanity. He will turn in the car and lease another when the brakes get dirty... er .. wear out.

[CosmosMpower]

For a 100% street car I'd take CCB and never have to change them but for a car that sees track no way I'd stick with CCB, in fact I'd switch back to steel. Pretty common thing in the GT3 world.

[CanAutM3]

Originally Posted by adc

So, silly question: how do you replace the pads on the front carbon ceramics?

You need to take the calipers off.

[clubsport]

Originally Posted by CosmosMpower

For a 100% street car I'd take CCB and never have to change them but for a car that sees track no way I'd stick with CCB, in fact I'd switch back to steel. Pretty common thing in the GT3 world.

Yep, it isn't that CCB have a high wear rate, It's also the probability of the leading edge of the rotor getting chipped by a rock pebble. In Cali, a lot of tracks are in outlying desert areas. Lots of rocks. Chipped rotor=early and expensive replacement. As you all know, BMW only replaces steel rotors under warranty. Or that's what my CA told me.
They look awesome, though. And the gold would go great on LBB.

[CanAutM3]

Originally Posted by MRV99

We are not talking about frugal cost savings per mile. This is showing that a CCB can be retrofitted. As I spend more time going to the track we all know speed cost money. If you want to go fast(er) you need to spend money above and beyond common sense. Great job showing this can be done.

...and you really believe CCB will allow you to go faster around a track compared to the irons with proper track pads ?

[MRV99]

Originally Posted by CanAutM3

...and you really believe CCB will allow you to go faster around a track compared to the irons with proper track pads ?

I am talking about the weight savings. People spend crazy money getting their cars lighter so this is just another item

[CanAutM3]

Originally Posted by MRV99

I am talking about the weight savings. People spend crazy money getting their cars lighter so this is just another item

The mass factor of rotors the size as those is about 1.2x. So 33lb x 1.2 -15lb = ~25lb of effective mass reduction on the whole car. That's a anwful amount of dough per pound.

[MRV99]

Originally Posted by CanAutM3

The mass factor of rotors the size as those is about 1.2x. So 33lb x 1.2 -15lb = ~25lb of effective mass reduction on the whole car. That's a anwful amount of dough per pound.

You are correct but you are getting two things. Weight reduction which being unsprung weight which is a multiple of 8. Not to mention the advantages of carbon ceramics on the track. If your going to drop 7k on a set of rims which many people do to save weight then 8k on brakes is very doable. Once again, I was not saying it was a cost effective thing to do, I was saying people spend big money to go faster on a track and in theory, this is an upgrade to help that

[raysspl]

Very glad to see a successful OEM CCB retrofit! Very insightful data, thank you for sharing

[CanAutM3]

Originally Posted by MRV99

Weight reduction which being unsprung weight which is a multiple of 8.

Where does that number come from ?

Originally Posted by MRV99

Not to mention the advantages of carbon ceramics on the track.

It has not been demonstrated that CCB offer any lap time benefits over to irons rotors with proper track pads.

Originally Posted by MRV99

If your going to drop 7k on a set of rims which many people do to save weight then 8k on brakes is very doable. Once again, I was not saying it was a cost effective thing to do, I was saying people spend big money to go faster on a track and in theory, this is an upgrade to help that

RICERs will drop 7k on a set of rims . True track rats will spend a lot less for the rims and keep the money for multiple sets of tires

In the same manner, track rats usually shy away from the CCB because they are way too costly to operate at the track (with track use, CCB wear just as fast if not faster than irons; and at a $17k replacement cost ) without offering a tangible benefit in lap times.

[MechEE]

Originally Posted by MRV99

You are correct but you are getting two things. Weight reduction which being unsprung weight which is a multiple of 8. Not to mention the advantages of carbon ceramics on the track. If your going to drop 7k on a set of rims which many people do to save weight then 8k on brakes is very doable. Once again, I was not saying it was a cost effective thing to do, I was saying people spend big money to go faster on a track and in theory, this is an upgrade to help that

Not true. The mass factor is 2x TOPS, and that is when the mass is concentrated at the outer diameter of the tire. When it's distributed over the face of the entire tire / wheel diameter, it's 1.5x. So a rotor is very likely ~1.2x (since it's a uniform face distribution, but only a fraction of the wheel diameter).

[dave72]

I did a upgrade off the M4 (6pots) oem calipers in combo with M5 discs oem, the center is machined from 74mm to 79mm for perfect fitment on M2.
Brakes pads are from Brembo . Rear calipers painted in the same colors as the front calipers

[Franzino]

Originally Posted by CosmosMpower

For a 100% street car I'd take CCB and never have to change them but for a car that sees track no way I'd stick with CCB, in fact I'd switch back to steel. Pretty common thing in the GT3 world.

100% correct....regular trackdaydrivers in Europe with a GT3 / GT3 RS have almost always steel rotors.