Next Level Auto Brokers
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read

Go Back   BMW M3 and BMW M4 Forum > BMW F80 M3 / F82 M4 Technical Topics > Suspension | Brakes | Chassis

Post Reply
 
Thread Tools Search this Thread
      06-09-2021, 06:54 PM   #1
Adcampo
Lieutenant Colonel
United_States
872
Rep
1,658
Posts

Drives: G80 Manual
Join Date: Apr 2013
Location: Ashburn Va

iTrader: (1)

brake noise after track day

I've got an 18' ZCP. I did a track day back in march and the OEM brakes were fine. I was surprised how well they held up after 4 20 mins sessions. I went again last week and everything was fine until the end of the last session. I immediately noticed a bit of a wobble and rough sound. Not so much a warped rotor feeling, but some shimmy and low grinding sound. I've only driven it a couple times since and it hasn't cleared up.

Are we talking about new pads or are the rotors toast too? My wife is going to be thrilled.

For what it's worth, I got my best time on that last session.
__________________
18' F80 6MT, 991.1s cab PDK, F83 6mt, 996 C4S cab 6mt, F30 328iM 6mt
E60 M5 SMG, E39 M5, E46 M3 cab 6mt, E36 M3 5mt
Appreciate 0
      06-10-2021, 01:58 PM   #2
jfritz27
Major
jfritz27's Avatar
1101
Rep
1,288
Posts

Drives: 2018 F80 CS
Join Date: Dec 2014
Location: New Jersey

iTrader: (0)

These were OEM pads? If you were really bookin' then chances are you got a nice uneven shmear of pad material on the rotors, since OEM pads are not really designed to take the abuse of a faster pace. This uneven layer is now scraping against your pads

Would just drive them normally on street for a few weeks and let the pads scrub your rotors at normal operating temperatures; if that was the issue, then with this the problem should fix itself over time. Then go get track pads
Appreciate 0
      06-10-2021, 04:13 PM   #3
Adcampo
Lieutenant Colonel
United_States
872
Rep
1,658
Posts

Drives: G80 Manual
Join Date: Apr 2013
Location: Ashburn Va

iTrader: (1)

Quote:
Originally Posted by jfritz27 View Post
These were OEM pads? If you were really bookin' then chances are you got a nice uneven shmear of pad material on the rotors, since OEM pads are not really designed to take the abuse of a faster pace. This uneven layer is now scraping against your pads

Would just drive them normally on street for a few weeks and let the pads scrub your rotors at normal operating temperatures; if that was the issue, then with this the problem should fix itself over time. Then go get track pads
Thanks. I was doing some hard laps. Full out! It was a blast.

Took it to the dealer today and scored a full front end brake job under warranty! Next track day, I'll definitely swap out for some Pagid track pads first.
__________________
18' F80 6MT, 991.1s cab PDK, F83 6mt, 996 C4S cab 6mt, F30 328iM 6mt
E60 M5 SMG, E39 M5, E46 M3 cab 6mt, E36 M3 5mt
Appreciate 0
      06-13-2021, 09:37 PM   #4
FlyingLow78
The G8X is a disaster. 🤮
930
Rep
988
Posts

Drives: Not a BMW anymore
Join Date: Dec 2016
Location: Europe

iTrader: (3)

Maybe take a look at PFC pads. I ran Pagids until I overheated them and crashed, so now I always run a pad that can tolerate much more heat.
Appreciate 0
      06-13-2021, 10:11 PM   #5
Adcampo
Lieutenant Colonel
United_States
872
Rep
1,658
Posts

Drives: G80 Manual
Join Date: Apr 2013
Location: Ashburn Va

iTrader: (1)

Quote:
Originally Posted by FlyingLow78 View Post
Maybe take a look at PFC pads. I ran Pagids until I overheated them and crashed, so now I always run a pad that can tolerate much more heat.
Quote:
Originally Posted by FlyingLow78 View Post
Maybe take a look at PFC pads. I ran Pagids until I overheated them and crashed, so now I always run a pad that can tolerate much more heat.
Thx. I'll check them out.

How quickly did they overheat? I'm doing 4 20 min sessions in a day.
__________________
18' F80 6MT, 991.1s cab PDK, F83 6mt, 996 C4S cab 6mt, F30 328iM 6mt
E60 M5 SMG, E39 M5, E46 M3 cab 6mt, E36 M3 5mt
Appreciate 0
      08-22-2021, 12:41 AM   #6
JustJames
-James
JustJames's Avatar
49
Rep
40
Posts

Drives: 2016 M3 Comp
Join Date: Mar 2021
Location: Boston, MA

iTrader: (0)

I recommend PFC as well (currently running PFC 08). Great performance and wear, they are just very loud, but I can forgive that due to the performance.
Appreciate 0
      08-25-2021, 09:42 PM   #7
dawei213
Second Lieutenant
United_States
92
Rep
299
Posts

Drives: 2018 M3
Join Date: Sep 2011
Location: Philadelphia

iTrader: (0)

Quote:
Originally Posted by JustJames View Post
I recommend PFC as well (currently running PFC 08). Great performance and wear, they are just very loud, but I can forgive that due to the performance.
I too recently ran PFC08 and they worked great but the noise from 10 to 0 was unbearably loud for street use. Luckily it's easy to change out all 4 corners, took me a little over an hour.

You running these pads on the street?
Appreciate 0
      08-25-2021, 09:51 PM   #8
JustJames
-James
JustJames's Avatar
49
Rep
40
Posts

Drives: 2016 M3 Comp
Join Date: Mar 2021
Location: Boston, MA

iTrader: (0)

Quote:
Originally Posted by dawei213 View Post

You running these pads on the street?
Nope, just the track. Once they get some temp they quiet down, but they never stop squeaking on the street
Appreciate 0
      09-04-2021, 04:41 AM   #9
edwinm3
Brigadier General
edwinm3's Avatar
United_States
970
Rep
3,996
Posts

Drives: F82
Join Date: Nov 2011
Location: Broward

iTrader: (32)

Quote:
Originally Posted by jfritz27 View Post
OEM pads are not really designed to take the abuse of a faster pace.
Tell that to the guys at the performance center lol
__________________

Grigio Telesto M4, 6MT.
Coyote 5.0 F-150
991 GT3
Appreciate 0
      09-04-2021, 08:11 AM   #10
D_SheerDrivingPleasure
Captain
D_SheerDrivingPleasure's Avatar
United_States
1081
Rep
913
Posts

Drives: F80
Join Date: Aug 2020
Location: NYC

iTrader: (0)

same thing just happened to me but I'm on DS1.11 pads. Since returning from Watkins I noticed a sh sh sh rubbing sound originating from my left front rotor. The sound frequency is correlated to speed. I'm assuming it's pad deposits and not a warped rotor.
Appreciate 0
      09-07-2021, 09:36 AM   #11
David0ff
Combined Applications Group
David0ff's Avatar
Canada
1055
Rep
680
Posts

Drives: Lada Scrapus Trofeo R
Join Date: Jan 2014
Location: Classified

iTrader: (1)

Not long ago I came across a set of pads I never though about using. They were recommended to my by several corvette guys.
Powerstop Track day

They are superb and super cheap. They bed in well, they make no noise on the street unless you rally stop to stop and hear them up.

0 fade on track and I run hard with aero.

I believe it's the best $/performance pad you can buy.

I highly recommend them
__________________
/////////
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 10:00 PM.




f80post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST