|
|
09-17-2011, 10:12 PM | #1 |
-
11815
Rep 23,187
Posts |
pad transfer and making popcorn?
2 questions. number one i have a significant amount of pad transfer on my front rotors. will spraying brake cleaner on them help with speed of removal as i have another track day shortly and dont want the wheel to shake as it is now because of the buildup. number 2 it sounds like i have a rock in my rear brakes as it sounds like im making popcorn when i go very slow 1-5mph in forward or reverse. how do i get that sucker out.
__________________
02 Tiag e46 M3|6MT|GC plates|MCS c.o.|GC bars|GC race control arms|GC bushings|BW eng. & tran. mounts|subframe kit|BW race shifter|BW Jaffster|Euro header|BW exhaust|K&N c.a.i.|Epic race tune|Rouge pulleys|Seibon CF hood|CSL bumper|apr gt 250 & splitter|ST-40|XR-2|SS lines|half cage|Recaro profi|Profi 2 harness|BMWpedals|BW studs| |
09-18-2011, 12:27 AM | #2 |
Colonel
87
Rep 2,464
Posts |
I'm confused... I thought you want to transfer pad material to the rotor... isn't that what bedding-in is?
I don't know how you fix your second problem. But it is not called popcorn noise, it is referred as cow bell noise. There are couple threads in the general forum, do a search.
__________________
2011 MINI Cooper S
previous cars: E92 M3, Z4MC, Z4 Roadster, E36 328 Sedan |
Appreciate
0
|
09-18-2011, 12:30 AM | #3 |
-
11815
Rep 23,187
Posts |
Okay I want less cow bell then. If you overheat the brakes and get a bunch of pad material on the rotors it causes a shudder on braking and has to be cleared so they perform properly again.
__________________
02 Tiag e46 M3|6MT|GC plates|MCS c.o.|GC bars|GC race control arms|GC bushings|BW eng. & tran. mounts|subframe kit|BW race shifter|BW Jaffster|Euro header|BW exhaust|K&N c.a.i.|Epic race tune|Rouge pulleys|Seibon CF hood|CSL bumper|apr gt 250 & splitter|ST-40|XR-2|SS lines|half cage|Recaro profi|Profi 2 harness|BMWpedals|BW studs| |
Appreciate
0
|
09-18-2011, 12:40 AM | #4 |
8300
19
Rep 573
Posts |
Here is something that made sense to me. Haven't tried it.
http://www.stoptech.com/tech_info/wp_padremoval.shtml |
Appreciate
0
|
09-18-2011, 07:02 AM | #5 |
Captain
15
Rep 751
Posts |
The article from StopTech is right on. I don't remove track pads until I get home from the track. The trip home with the more abbrasive pads is enough to clean the rotors, and they then accept the street pads without issue. To the OP, if you are getting substantially uneven deposits, it sounds like you are overheating the pad. I don't believe you mentioned the type of track pad you are using, but you may need something more aggressive.
Regarding the noise in the rear. It could be just what it sounds like, and small rock could be caught between the shield and rotor. If so, just push the shield out a little with a screwdriver and see if anything falls out. The cowbell noise, in my experience, was an issue with the e-brake. |
Appreciate
0
|
09-18-2011, 09:49 AM | #6 |
-
11815
Rep 23,187
Posts |
I'm on stock pads and did overheat moreso than my last track day. In the past a fouple days of driving was all that was required to clear the deposits.
__________________
02 Tiag e46 M3|6MT|GC plates|MCS c.o.|GC bars|GC race control arms|GC bushings|BW eng. & tran. mounts|subframe kit|BW race shifter|BW Jaffster|Euro header|BW exhaust|K&N c.a.i.|Epic race tune|Rouge pulleys|Seibon CF hood|CSL bumper|apr gt 250 & splitter|ST-40|XR-2|SS lines|half cage|Recaro profi|Profi 2 harness|BMWpedals|BW studs| |
Appreciate
0
|
09-18-2011, 12:46 PM | #7 |
-
11815
Rep 23,187
Posts |
Okay just trying to get it to clear before my next track day in a week. I'm gonna try some harder stops over the next week, just a couple each time I drive and speed up the process hopefully. Getting new pads and rotors shortly under warranty so will run them until time for another pad change.
__________________
02 Tiag e46 M3|6MT|GC plates|MCS c.o.|GC bars|GC race control arms|GC bushings|BW eng. & tran. mounts|subframe kit|BW race shifter|BW Jaffster|Euro header|BW exhaust|K&N c.a.i.|Epic race tune|Rouge pulleys|Seibon CF hood|CSL bumper|apr gt 250 & splitter|ST-40|XR-2|SS lines|half cage|Recaro profi|Profi 2 harness|BMWpedals|BW studs| |
Appreciate
0
|
09-19-2011, 10:41 AM | #8 |
Major
60
Rep 1,036
Posts |
buy yourself a tub of the presoaked windex towels/rags from your favorite store and wipe down the rotors. Works every time for me when I've ended the track day with "shutter" to remove the excess deposits.
|
Appreciate
0
|
09-19-2011, 11:13 AM | #9 |
-
11815
Rep 23,187
Posts |
okay windex that was the trick i was looking for. tried to find a rock in my wheel to eliminate the cow bell and wasnt one that i could see.
__________________
02 Tiag e46 M3|6MT|GC plates|MCS c.o.|GC bars|GC race control arms|GC bushings|BW eng. & tran. mounts|subframe kit|BW race shifter|BW Jaffster|Euro header|BW exhaust|K&N c.a.i.|Epic race tune|Rouge pulleys|Seibon CF hood|CSL bumper|apr gt 250 & splitter|ST-40|XR-2|SS lines|half cage|Recaro profi|Profi 2 harness|BMWpedals|BW studs| Last edited by 1MOREMOD; 09-19-2011 at 11:30 AM.. |
Appreciate
0
|
09-19-2011, 11:30 AM | #10 |
Lieutenant General
922
Rep 15,818
Posts |
Report back once you do it please
__________________
|
Appreciate
0
|
09-19-2011, 11:36 AM | #11 |
-
11815
Rep 23,187
Posts |
okay plan on trying tomorrow.
__________________
02 Tiag e46 M3|6MT|GC plates|MCS c.o.|GC bars|GC race control arms|GC bushings|BW eng. & tran. mounts|subframe kit|BW race shifter|BW Jaffster|Euro header|BW exhaust|K&N c.a.i.|Epic race tune|Rouge pulleys|Seibon CF hood|CSL bumper|apr gt 250 & splitter|ST-40|XR-2|SS lines|half cage|Recaro profi|Profi 2 harness|BMWpedals|BW studs| |
Appreciate
0
|
09-19-2011, 11:24 PM | #12 |
Lieutenant Colonel
515
Rep 1,729
Posts |
trying to remove judder with the same pad won't do you any good. you're going to need something more abrasive. either that or wait for awhile for the vibrations to go away eventually. i used to experience that with ferrodo pads and i tossed them because the deposits were so awful and the vibration shook the whole car.
i went to pfc zrated for the street and pfc01's for the track and couldn't be happier. they're compatible compounds so you barely have any issues with deposits when switching between the pads. i probably felt just a little judder for 2 laps, then the pfc01's were bedded in. likewise on the drive home... i kept the pfc01's on to scrub off any deposits, and the zrated pads went on when i got home. no issues, no fussing.
__________________
2018 Grigio Telesto F80 M3 DCT | :: Bone Stock :: 2004 Titanium Silver E46 M3 6 Speed | :: Track Car :: |
Appreciate
0
|
09-20-2011, 02:14 AM | #13 |
-
11815
Rep 23,187
Posts |
sure it will. given enough braking and time i can remove my entire rotor surface until it isnt within spec so i can certainly remove deposits from a single day at the track. the deposits occur when the pad and rotor are both heated to a range way outside what i will ever see on the street. this is what causes the deposit or pad transfer in the first place. its removed again with normal braking. what i dont want to do is do a bunch of stops in a row simulating track braking as i will just incur more deposits, thus i am gradually wearing those said deposits down with varied routine braking at more normal speeds.
__________________
02 Tiag e46 M3|6MT|GC plates|MCS c.o.|GC bars|GC race control arms|GC bushings|BW eng. & tran. mounts|subframe kit|BW race shifter|BW Jaffster|Euro header|BW exhaust|K&N c.a.i.|Epic race tune|Rouge pulleys|Seibon CF hood|CSL bumper|apr gt 250 & splitter|ST-40|XR-2|SS lines|half cage|Recaro profi|Profi 2 harness|BMWpedals|BW studs| |
Appreciate
0
|
09-20-2011, 05:26 AM | #14 | |
Major
69
Rep 1,339
Posts |
Quote:
__________________
|
|
Appreciate
0
|
09-20-2011, 06:09 AM | #15 |
Colonel
148
Rep 2,278
Posts |
I had this issue with my stock rotors and the first few times the shudder went away after normal driving for a while. The last time it never did and I ditched the rotors and put on a BBK.
__________________
2015 f80 M3, 2016 GT3
|
Appreciate
0
|
09-20-2011, 10:14 AM | #16 |
-
11815
Rep 23,187
Posts |
Thanks don't like to hear that. Its close to time for new rotors and pads anyway.
__________________
02 Tiag e46 M3|6MT|GC plates|MCS c.o.|GC bars|GC race control arms|GC bushings|BW eng. & tran. mounts|subframe kit|BW race shifter|BW Jaffster|Euro header|BW exhaust|K&N c.a.i.|Epic race tune|Rouge pulleys|Seibon CF hood|CSL bumper|apr gt 250 & splitter|ST-40|XR-2|SS lines|half cage|Recaro profi|Profi 2 harness|BMWpedals|BW studs| |
Appreciate
0
|
09-20-2011, 11:56 AM | #17 |
-
11815
Rep 23,187
Posts |
i pulled the fronts this morning and wiped down the rotor surface really well with windex. seems to have removed a lot. i think the fact that my front tires have a huge amount of pick up on them as well is contributing to the shudder. havent went out for a drive yet but will today. hope its a little better.
__________________
02 Tiag e46 M3|6MT|GC plates|MCS c.o.|GC bars|GC race control arms|GC bushings|BW eng. & tran. mounts|subframe kit|BW race shifter|BW Jaffster|Euro header|BW exhaust|K&N c.a.i.|Epic race tune|Rouge pulleys|Seibon CF hood|CSL bumper|apr gt 250 & splitter|ST-40|XR-2|SS lines|half cage|Recaro profi|Profi 2 harness|BMWpedals|BW studs| |
Appreciate
0
|
09-20-2011, 02:22 PM | #18 |
-
11815
Rep 23,187
Posts |
fyi windex is no help. thinking i may have slightly warped my rotors last time out. getting new ones under warranty around christmas time thankfully.
__________________
02 Tiag e46 M3|6MT|GC plates|MCS c.o.|GC bars|GC race control arms|GC bushings|BW eng. & tran. mounts|subframe kit|BW race shifter|BW Jaffster|Euro header|BW exhaust|K&N c.a.i.|Epic race tune|Rouge pulleys|Seibon CF hood|CSL bumper|apr gt 250 & splitter|ST-40|XR-2|SS lines|half cage|Recaro profi|Profi 2 harness|BMWpedals|BW studs| |
Appreciate
0
|
Post Reply |
Bookmarks |
Thread Tools | Search this Thread |
|
|