Ceramic brakes or not??

[DML]

Hi fellas, I've narrowed my choice between two M4cs' one with ceramics, my issue here is DO THEY SQUEAL??? Just cannot tolerate that annoyance. If the auto sees the track twice, most likely that'll be it. Price is really incredible. Only other options outside of BMW is the C63 sedan & coupe, just not as generous. Any help with the brakes would be huge, thank you.

[lgiambalvo540]

Originally Posted by DML

Hi fellas, I've narrowed my choice between two M4cs' one with ceramics, my issue here is DO THEY SQUEAL??? Just cannot tolerate that annoyance. If the auto sees the track twice, most likely that'll be it. Price is really incredible. Only other options outside of BMW is the C63 sedan & coupe, just not as generous. Any help with the brakes would be huge, thank you.

Mine only squeal really bad when it's cold outside. Weekly hose down of the rotors help with the noise too.

[LOW4LYF]

Yes they do and are horrible in rain or wet condition.

[DML]

Originally Posted by LOW4LYF

Yes they do and are horrible in rain or wet condition.

Not good, thanks

[RickFLM4]

They make noise and you need to get used to them in heavy rain. Light rain is not a big deal.

[clutchdj]

Yes they squeal and are horrid. Performance vehicles that have brakes that squeal. What were the engineers thinking, huh? Now send me the info on the deal so that I may spare you the aneurysm around the thought of brake squeal.

[redblaze]

Mine is squealing if I drive it very often. It is annoying.

[dubsesd]

Mine don't squeak unless I pamper them too long. They like to be used harder. Zero brake dust, amazing bite. Best option on the m3/4

[IB M]

I like CCBs:

Look great
No brake dust
Don't rust when U wash
Performance advantage
Lighter weight
Will last forever unless u track the car

Mine don't squeak much, actually the regular brakes squeak just as much when rolling in reverse.

Gotta be smart in rain but that is good sense regardless.

[RickFLM4]

Zero brake dust or rust is definitely nice. Despite noise and concern in heavy rain, I liked them to clarify my earlier post. I got a really good deal on my F82 with CCBs so I took it and would do it again. However, I wouldn’t pay the list price for them and now have the regular brakes on my F83. Obviously replacements, should you ever need them, are absurdly expensive.

[nickl630]

Originally Posted by DML

Hi fellas, I've narrowed my choice between two M4cs' one with ceramics, my issue here is DO THEY SQUEAL??? Just cannot tolerate that annoyance. If the auto sees the track twice, most likely that'll be it. Price is really incredible. Only other options outside of BMW is the C63 sedan & coupe, just not as generous. Any help with the brakes would be huge, thank you.

This issue always made me laugh. Have you ever heard a DP Car stop in the pits? a Stock Car? Even an F1 car (when they are cold)... the squeal is INSANE.

[Ibiza]

BMW M engineers have told me that CCB are a waste unless you track in Death Valley, CA i.e. high temps. BMW Driving Experience M cars for track training are spec with M compound brakes with M performance brake pads. This is first hand knowledge from Germany over multiple trips.

[DML]

Originally Posted by nickl630

This issue always made me laugh. Have you ever heard a DP Car stop in the pits? a Stock Car? Even an F1 car (when they are cold)... the squeal is INSANE.

I could tolerate in "the pits" just not on Main Street. Thank you

[DML]

Originally Posted by redblaze

Mine is squealing if I drive it very often. It is annoying.

Hmmm, maybe I won't drive it.

[domino_z]

zero noise

zero brake dust

[nickl630]

To echo what everyone else has said (and having owned both):

Pro's of CCB's:
- Look great
- No Dust
- Longer life if you DONT track the car.

Cons of CCB's:
- Noise (mostly when cold out)
- HORRIBLE stopping power if in heavy rain (if you live in Florida or an area with heavy rain this is a serious issue) or driving through a big puddle
- Cost of replacements (10k +)
- Heavy track use... search on here. some users replacing all 4 rotors/pads after 20k miles.

[LINF83]

Mine don't squeak at all , when it is really cold out side need to warm up the ccb by driving the car for little bit

[clutchdj]

Originally Posted by Ibiza

BMW M engineers have told me that CCB are a waste unless you track in Death Valley, CA i.e. high temps. BMW Driving Experience M cars for track training are spec with M compound brakes with M performance brake pads. This is first hand knowledge from Germany over multiple trips.

Now this is true. But stock pads on stock irons can’t slow down a squirrel after 40 minutes of track heat in them.

[DanMpower]

Originally Posted by nickl630

To echo what everyone else has said (and having owned both):

Pro's of CCB's:
- Look great
- No Dust
- Longer life if you DONT track the car.

Cons of CCB's:
- Noise (mostly when cold out)
- HORRIBLE stopping power if in heavy rain (if you live in Florida or an area with heavy rain this is a serious issue) or driving through a big puddle
- Cost of replacements (10k +)
- Heavy track use... search on here. some users replacing all 4 rotors/pads after 20k miles.

Don't forget to add in "pros" the 30+ pound rotational weight savings. That's huge.

[aBMWfan]

I personally prefer the feeling of Brembo GT BBK as I drove them back to back. The CCB’s bite early and it gets used to w/ modulating. The Brembo’s are linear and better in that category imo

[CanAutM3]

Originally Posted by DumbAS55

Don't forget to add in "pros" the 30+ pound rotational weight savings. That's huge.

While every bit of weight reduction counts, the overall mass reduction of the CCB is not "huge".

As I posted here, doing rough calculation for the F8X, the equivalent mass ratio of the brake disc is about 1.20. This means that every lb of disc weight is equivalent to 1.2lb of non-rotating mass on the car. A reduction of 27.5lb on the discs equates to 33lb equivalent mass. Add back the 13lb from the heavier callipers (27.5-14.5) and you end up with a 20lb equivalent mass reduction on the total car (~0.5%). Not that significant IMO.

IMO, the biggest weight benefit of the CCB is on unsprung mass, where it is reduced by about 3.6lb per corner.

[DanMpower]

Originally Posted by CanAutM3

While every bit of weight reduction counts, the overall mass reduction of the CCB is not "huge".

As I posted here, doing rough calculation for the F8X, the equivalent mass ratio of the brake disc is about 1.20. This means that every lb of disc weight is equivalent to 1.2lb of non-rotating mass on the car. A reduction of 27.5lb on the discs equates to 33lb equivalent mass. Add back the 13lb from the heavier callipers (27.5-14.5) and you end up with a 20lb equivalent mass reduction on the total car (~0.5%). Not that significant IMO.

IMO, the biggest weight benefit of the CCB is on unsprung mass, where it is reduced by about 3.6lb per corner.

CanAutM3, what's your opinion on the article below?

"rotating mass (such as a wheel or brake rotor) is roughly three times harder to accelerate than sprung weight (such as the additional weight of a passenger or rear seat).

This means that dropping just 10 pounds per wheel with the addition of a lighter set of racing-oriented wheels would equate to almost 120 pounds of sprung weight lost on the car"

https://www.cjponyparts.com/resource...nsprung-weight

If there is any truth to that article wouldn't losing 33lbs of rotational mass by having lighter rotors equal to roughly 100 pounds of sprung weight loss? Sure the CCB caliper is heavier but it's non-rotational mass compared to the rotors, which are about 33 lbs lighter compared to their steel counterparts. Please school me as I admit I'm not an expert on this sort of thing...