07-24-2017, 02:37 PM | #45 |
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The cost to convert to a Stoptech or AP kit probably covers in one rotor change.
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07-24-2017, 02:39 PM | #46 |
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Any experience or feedback on the aftermarket Brembo brake kits for the M3/M4?
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07-24-2017, 02:47 PM | #47 |
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Brembo's GT kits aren't my cup of tea. The monoblock GT calipers have to be removed to change the pads. AP and Stoptech you just remove the bridge bolts. and slide the pads from the top. Also Brembo GT pads are typically 18.5mm only. AP Radical can go 20-22-25mm and ST I get custom made 22mm's.
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07-24-2017, 02:49 PM | #48 | |
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Thanks!
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07-24-2017, 02:53 PM | #49 | |
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07-24-2017, 02:54 PM | #50 |
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So I see the AP kit as more track focused. The ST as double duty, but a few points behind on the pure track element.
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07-24-2017, 02:55 PM | #51 |
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07-24-2017, 03:00 PM | #53 |
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This is the one I was looking at here: https://maximumpsi.com/product/ap-ra...-bbk-f8x-m3m4/
Dont see any bolts/clips...
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07-24-2017, 03:41 PM | #54 | |
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kits. https://www.essexparts.com/essex-des...-f87m2f80m3f82 |
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07-25-2017, 09:31 AM | #55 |
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Lots of good info in this thread, thanks! I recently swapped my steel setup with a guy that was turning his car in on lease, got the CCB rotors, pads, calipers, heat shields and bought the brake booster and had the car re-programmed. He claimed he put 10k miles on the setup (his car was originally steel too) and so far so good. I checked the "mileage estimator" in the computer on the way home and it showed 100k front and 80k rear left...I'll just keep a close eye on the rotor markings and check pads every once in a while.
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07-25-2017, 04:59 PM | #56 | |
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The rotor wear indicators checks out just fine. Full circles, looks just like the manual and I'm comfortable taking ownership. However, I checked the CBS and the front pads says needs changing in 22,000 miles and rears says 13,000. Which is way lower than expected. Sure, I can change the pads for $2k or so, but I'm concerned that this car's rotor wear is also on an accelerated schedule as well. Any advice or thoughts. (I'm aware the M6 is a 4400lb car and this is a F80 forum with 3400 lb cars, but seriously, 22k/13k doesn't look right to me.
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07-26-2017, 08:13 AM | #57 | |
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I think you are stressing way too much about this. CCB's are a perfect option for the street. They last forever and produce no brake dust... Changing the CCB pads doesn't cost $2K in any case. I think the fronts are about $600 (pair) and the rears are about $300 (pair). Measure the CCB pad thickness to confirm how much is left. I measured my last set to be 12-13mm thick when new. If the wear indicators say the rotors are good then I would go with that. In my experience they are actually pretty conservative. I've seen them look pretty "worn" on my track car (M4) when there was actually about 50% life left in the rotors (as confirmed by my Carboteq instrument). The Carboteq is the absolute authority in determining the status of a CCB rotor - BMW even stamps each rotor with max/min Carboteq values in 3 places. You could also weigh the rotors if you have a decent scale. My side-by-side comparison of weight measurement vs the Carboteq indicates that weighing the rotors is almost as accurate (although you have to take the rotors off the car). The Carboteq can be used without removing the rotors... The wear indicators are the least accurate method to determine wear. They will scrub off pretty well during track use but seem to re-acquire a representaive coating during street use (iow: you can't rely on them on a track car). Stop stressing! Enjoy your new car (without brake dust)! Change the pads if/when the time comes... ;-)
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07-26-2017, 08:22 AM | #58 | ||
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MCCB discs are manufactured by Brembo/SGL using carbon fibers from the Boeing-BMW/SGL Recycling facility in Moses Lake. Pads are supplied by TMD Friction. Quote:
http://f80.bimmerpost.com/forums/sho...5&postcount=38 Oddly enough, on the Fxx M5/6, when MCCB is fitted, the cooling ducts are blocked off. |
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07-26-2017, 10:50 AM | #59 |
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Are ANY of the aftermarket brake kit manufacturers (Brembo, Stoptech, AP...) offering up specific coding info for their F8X specific kits?
...are most folks (installing upgrade kits) doing nothing? ...or perhaps just using the established coding for M compound Iron brakes?
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07-26-2017, 11:19 AM | #60 | |
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This is a different scenario however. The way BMW had to program the artificial behavior into the active servo motor/brake pedal and the down line actuations of the individual circuits specifically for CCB is different than going iron-to-iron BBK (in most applications). MCCB has the artificial cold temp mushy pedal, NO fade compensation, different ABS pulsing, etc etc. When you had the retrofit done on your M6, the servo motor was changed and the DSC, ICM, and Servotronic reprogrammed accordingly. Inversely, on my M5, when the MCCB was removed as part of the armoring program, the same modules were recalibrated. Some companies do offer DSC calibration services using the supplier software, but this service is not cheap. |
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10-16-2018, 10:10 PM | #61 |
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I have two questions:
1) This might be a newbie question, but can I measure my CCB pads without taking the wheels off? 2) When I buy the CCB replacement pads (assuming no rotor change needed) do I just buy the pads SKU 34212284990 (rear) and SKU 34112284970 (front) or do I have to buy a pad kit with sensors and other consumables? Thanks |
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10-28-2018, 09:59 PM | #62 | |
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very bad experience with them... |
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12-29-2019, 06:45 PM | #63 | |
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08-15-2020, 03:44 PM | #64 |
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thx everyone's contribution in this thread.
my front OEM CCB pads are roughly measured with ~7mm thickness left (~11mm at the the back), if it's 13mm for the front when new, i believe it's time for me to change the front pads. thinking of getting the Pagid Racing RSC1 as replacement. my front and rear CCB rotors look a bit worn too based on the physical indicators (i know from this thread that weighting them would confirm the need)
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08-25-2020, 04:52 PM | #65 | |
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BTW, may I know please if the brake pad wear sensors need to be replaced too given that the current pads still have a thickness of ~7mm remained (hence the sensors have not be "touched" yet)?
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08-29-2020, 11:26 AM | #66 |
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If the sensors have not beem triggered, there is no need to replace them.
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