|
|
03-13-2013, 01:20 AM | #1 |
Second Lieutenant
68
Rep 225
Posts
Drives: E92 M3 JZB
Join Date: Nov 2008
Location: Indonesia
|
Brembo BBK vibrate under heavy braking
Guys, so my brembo start to vibrate only when they are getting hot or after multiple heavy braking.. when they start to vibrate, even light brake make the steering wheel vibrate. i can feel it by the vibration on the steering wheel (the brake pedal doesnt vibrate though). It happens since the day i installed the bbk.. i have cleaned the hub to make sure that the rotors sit flat, i have also bed in the brakes as well... maybe i didnt bed the rotor properly ? the way i did was going from 100 kph to 40 kph for about 15 times. what else could be the cause ?
How can you tell when abs kick in ? is it something like grinding noise ? i want to make sure that i didnt engage the abs when i did the bedding in process. i have searched the whole threads in the forum about this brake judder but still cant find a solution this is what the rotor look like, pad deposit ? but i dont think it is pad deposit because i always cool down the brakes after spirited driving, and never been into track. Last edited by nightrain; 03-13-2013 at 01:57 AM.. |
03-13-2013, 01:45 AM | #2 |
8300
19
Rep 573
Posts |
What does the front rotor look like? The rear that you show shouldn't be an issue. Brembo pads do form pad deposits when they overheat at the track. Hard to imagine how one can overheat them on the street though. I still have vibration from my last track event but it is getting better. Next time racing pads. Stock brembo pads suck.
|
Appreciate
0
|
03-13-2013, 01:47 AM | #3 |
Major
619
Rep 1,239
Posts |
Vibration
I use to have drilled rotors on my Brembo's and after a full day of tracking I would fill the holes w/ brake pad deposits and get vibrations on my steering wheel while driving. A good power wash to my rotors and the vibrations disappear. I wish someone else talk to me a lot sooner because I must have wasted $500 plus "four alignments" altogether thinking it was the problem. GL
__________________
2016 Hellrot F80 M3|JRZ RS Pro with Swift Springs 550/750 spring rates l AP Radical 5000R 9668/9449 lSpiegler SS LinesI DS1.11I Eisenmann DP|MPE Catback|18" Forgeline GS1R 18x10 et 22 and 18x11 et 44 NT01 275/35/18 and 305/35/18| Forgeline GTD1 18x10et43 SquarelM Performance Lip/Splitter|IND aesthetic mods|Dinan Toe Link|Fall Line mono ball conversion kit and upper link kit| Aim Solo 2DL Smarty Cam|Simpson Hybrid|Stilo Offshore helmet.
|
Appreciate
0
|
03-13-2013, 01:52 AM | #4 | ||
Second Lieutenant
68
Rep 225
Posts
Drives: E92 M3 JZB
Join Date: Nov 2008
Location: Indonesia
|
Quote:
What race pads do you recommend ? pagids ? but i have heard race pads dont do very well on the street, they have no "bites" when cold ? Quote:
|
||
Appreciate
0
|
03-13-2013, 02:12 AM | #5 | |
8300
19
Rep 573
Posts |
Quote:
|
|
Appreciate
0
|
03-13-2013, 02:37 AM | #6 | |
Second Lieutenant
68
Rep 225
Posts
Drives: E92 M3 JZB
Join Date: Nov 2008
Location: Indonesia
|
Quote:
|
|
Appreciate
0
|
03-13-2013, 02:39 AM | #7 |
78
Rep 684
Posts |
Generally speaking, you shouldn't need racing pads on the street. But your problem does look like uneven pad deposits. I would contact your vendor and ask them what they can do to help you.
When ABS kicks in, you should feel a pulsation in your brake pedal.
__________________
|
Appreciate
0
|
03-13-2013, 10:05 AM | #8 | |
Major
110
Rep 1,311
Posts |
Quote:
You said you have had this problem since the day you installed your Brembo BBK? I've got the same problem with my AP BBK. Tried everything including race pad clean up and still got the same vibe in the steering when braking. At what speeds do you feel this vibration? Can you be specific? |
|
Appreciate
0
|
04-19-2013, 04:38 AM | #9 |
Second Lieutenant
68
Rep 225
Posts
Drives: E92 M3 JZB
Join Date: Nov 2008
Location: Indonesia
|
sorry for the late reply, yes i have had the problem since the day i installed the bbk..
Here what i have experienced: 1. In the early morning, when i just start the car and driving in the freeway, there is no vibration at all when i apply the brake. But then, after few light brakes from cruising speed e.g 120 km/h to 80 km/h, the steering wheel start to vibrate. 2. The deeper i apply the brake, the vibration get worse, especially when slowing down from high speed. 3. Under medium braking from high speed, let's say 180 km/h to 80 km/h, the vibration get worse. After that, even a light brake at 80 km/h, the steering wheel vibrates pretty bad. When this happens, if i use little or no brake for about 5 minutes, the vibration become less. 4. Braking from 150 km/h to 100 km/h give me a little vibration, however at the second time i do this, the vibration becomes worse. |
Appreciate
0
|
04-19-2013, 04:49 AM | #10 |
Second Lieutenant
68
Rep 225
Posts
Drives: E92 M3 JZB
Join Date: Nov 2008
Location: Indonesia
|
|
Appreciate
0
|
04-19-2013, 07:39 AM | #11 |
Grown Azz Man
429
Rep 3,021
Posts |
As someone stated above try to power wash the brakes. You could have deposits and not see it. A water hose won't work........Phil
__________________
2016 GT4.....Sapphire Blue Metallic, Platinum stitch Leather/Alcantara interior, Carbon Fiber Trim, PCM w/Nav, Guards Red Belts, 2 Zone Climate, Sport Chrono, LWB, Smokers Pack, Big Gas Tank, Light Design Pack, Bi-Xenon w/PDL, Auto Dim Mirror, Clear Side Markers, GTS Clear Taillights
|
Appreciate
0
|
04-19-2013, 04:32 PM | #12 |
Colonel
84
Rep 2,792
Posts |
I would try running some race pads for a while to scrub any pad deposits off of the rotors. IMO, that's what it has to be.
__________________
2008 IB E92 M3| BBS | KW | Arkym | Platte Forme A.G. | Active Autowerke | K&N | Fabspeed | Dinan | Evolve-R |
Appreciate
0
|
04-19-2013, 05:10 PM | #13 |
Midlife Crises Racing Silent but Deadly Class
1821
Rep 5,337
Posts
Drives: 2006 MZ4C, 2021 Tesla Model 3
Join Date: Oct 2007
Location: Welcome to Jamaica have a nice day
|
I'm going to go the OTHER way and suggest it's not pad deposit, since if it really IS pad deposit, the vibration issues would surface even when brake system is cold.
I suggest taking the brake rotor off and inspect the fasteners and make sure each one is torqued to specifications. Sounds to me like the rotor isn't expanding at consistent rate, or one or multiple fastener is binding the rotor preventing it from expanding, resulting in unbalanced rotor when it heats up, and unbalanced rotor causes enough "wobble" that translates into a vibration in the front end on braking. I had similar "symptoms" on my MZ4 Coupe with 2 piece floating rotors, normally the first few laps the brake feels fine, then when I brake the front end shakes, but once the system cools off the car feels fine. It's only when I was removing my rotor rings to replace with new rings did I notice one of the fasteners appears to have bound up and was 10X more difficult to remove than all the others. Swapping to OEM rotors solved the problem, still yet to see if new rotor ring will prevent it.
__________________
Sitting on a beat-up office chair in front of a 5 year old computer in a basement floor, sipping on stale coffee watching a bunch of meaningless numbers scrolling aimlessly on a dimly lit 19” monitor.
|
Appreciate
0
|
04-20-2013, 03:58 AM | #14 | |
Scythe-Meister
90
Rep 1,053
Posts |
Quote:
|
|
Appreciate
0
|
04-20-2013, 07:47 PM | #15 | |
8300
19
Rep 573
Posts |
Quote:
I still think a race pad would be the first thing to try out. Stock brembo pads behave very similarly to the OEM stock pads: when they overheat they create deposits that eventually should go away with normal driving. |
|
Appreciate
0
|
04-21-2013, 01:19 PM | #16 |
Private First Class
8
Rep 127
Posts |
you can attempt to rebed or not.....
if you rebed, it might solve the vibration same day.. if you choose to do nothing....the vibration will go away by itself.. give it a few days of normal driving. you choose.....
__________________
|
Appreciate
0
|
04-29-2013, 12:12 AM | #17 | |||||
Second Lieutenant
68
Rep 225
Posts
Drives: E92 M3 JZB
Join Date: Nov 2008
Location: Indonesia
|
Quote:
Quote:
Quote:
Quote:
Quote:
|
|||||
Appreciate
0
|
04-29-2013, 01:09 AM | #18 |
Major
549
Rep 1,179
Posts |
Hey bro, brembo Europe sucks
I had the US spec brembo before, also I used the OEM GTS rotors before and now I have the Euro spec brembos, so I know all the difficulties and differences. I made a Lot of experiences on street and on track since my car is a DD. If I can help you Out shoot me a mail under my MSN or Skype contact since I have no PM rights here |
Appreciate
0
|
04-29-2013, 05:55 AM | #19 | |
Second Lieutenant
68
Rep 225
Posts
Drives: E92 M3 JZB
Join Date: Nov 2008
Location: Indonesia
|
Quote:
|
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|