01-04-2023, 01:18 PM | #45 |
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Very few complaints of squealing with CCB on the current M5 if that is anything to go by. The only reason it might not be indicative is if very few M5 have CCB — I have not seen statistics showing the percentage of cars with this option.
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01-04-2023, 02:35 PM | #46 |
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Maybe, I have no idea though. With the CS, it did take a while before I heard any noise but now it happens slightly almost daily. I can drive hard and do some quick stops and it seems to help but only for a little while.
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01-04-2023, 03:12 PM | #47 |
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01-04-2023, 04:35 PM | #48 |
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Bro that’s awful! If you want we can trade for my 2020 with silent brakes. You will be much happier. Trust me.
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01-04-2023, 05:27 PM | #49 |
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Same question here. I’m just over 4800 and never heard a peep.
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01-04-2023, 05:56 PM | #50 |
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Hot topic...I had a F90 with steel, then got a F90 LCI with CCB...I will never buy another car without them.
To debate the track capability on a 4600 pound luxury sport sedan seems academic to me. I bought them for one reason and one reason only...To save time. The brake dust was insufferable on my last car. No issues when cold, no significant difference is brake performance, and slight occasional squeaking
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01-07-2023, 01:28 PM | #51 | |
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01-07-2023, 01:37 PM | #52 | |
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01-07-2023, 01:52 PM | #53 |
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09-22-2023, 08:57 PM | #55 | |
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I have the same if not MORE brake dust with the ccbs. Pedal feel is improved and more progressive imo than steel, but seriously you guys must be barely touching your brakes if you're not getting dust... (probably why yall complaining about the steelies squeeling all the tine) I can legit wash the car, drive 80 miles to a car show (mainly highway) and the wheels look like they were never washed, and this is with ccbs. One thing I can say is definitely a pro, my steel brakes would've been warped by now and getting changed (I'm at 8500 miles, no track use) while the ccbs are still holding strong. Sadly no fcpeuro lifetime warranty for ccbs, vs steel that I can afford to replace every 10k miles as needed for free |
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09-23-2023, 08:45 AM | #56 |
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Why would steel brakes be warped at 8500 miles? Have not read of anyone suffering warped rotors. Maybe some have accumulated pad deposits.
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09-23-2023, 09:44 AM | #57 |
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I think "warped rotors" is something that might have happened a long time ago but doesn't now. Unless maybe you buy the $30 Autozone China rotors for your Camry or something. The rotors on an modern car with decent performance should be more than adequate.
My 2000 Cadillac STS was my first car with 4-wheel disc brakes and I felt like I could stop on a dime. That is where I developed my hard braking habit. So much so that they warrantied my first brake pads when I brought it in at 10,000 miles because the front pad sensors said the pads were worn. They said "no way, must be hung caliper, bring it in." Then replaced the pads and said "tell him he's driving this car too hard". My rotors had an almost perfect blue sheen from all the pad material on them. If those tiny 11.85" rotors could stop that 4000lb car without warping I'm pretty sure the M5's will be ok. What many call "warping" is the shimmy caused by uneven pad deposits. And getting rotors turned is a risky idea since you are hoping their lathe is actually well maintained. They could end up making them worse. You could also have a problem with lateral runout on the rotor but that would be a manufacturing defect and not warping. |
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09-23-2023, 01:25 PM | #58 | |
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I have cracked my rotors at less than that. But, that's a little different. Shawn |
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09-23-2023, 02:31 PM | #59 |
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I was advised to park with just the gear in park and not engage the parking brake if the car hasn’t cooled down after vigorous braking. This keeps the rotors and calipers apart and reduces warping.
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09-23-2023, 02:38 PM | #60 | |
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MULTIPLE noobs at the track have "frozen" the parking brake after coming off track and parking with the parking brake on. It's now one of the FIRST things we coach new drivers not to do when coming off track. It's also best to circle the paddock at least once. Best to do a couple honestly. And run the car AFTER you park it to cool down the hotspots. Warping the rotors is still hard with modern cars. Take a 1974 Porsche 914 (with solid rotors) go nuts on track with Hawk Blues, and come off and park with the parking brake on? Yep. Probably. Not the same. But, it is what it is on that. Shawn |
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09-23-2023, 06:11 PM | #61 | |
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09-24-2023, 12:30 PM | #63 | |
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Worth the cost? Depends on what you do.... Shawn |
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09-24-2023, 08:01 PM | #64 | |
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I decided for the few times I'll track the car steels are fine. And you can actually afford to replace them when they wear out. Both the BMW and GM literature on their CCBs do not claim better stopping distance. Just fade resistance and unsprung weight. The old dealer training on CCBs said bmw uses a different master cylinder depending on on steel or CCBs so they can make the pedal feel the same. It doesn't seem like they do that now. |
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09-25-2023, 11:30 AM | #65 | |
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09-25-2023, 08:49 PM | #66 |
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