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09-01-2011, 08:22 PM | #1 |
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StopTech Pads squeaking
So from what I've heard, they ST Street Perf pads aren't suppose to squeak that much
But mine are driving me nuts.. Any advice...?
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09-01-2011, 08:25 PM | #2 |
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I don't have the answer but just wanted to mention that the shop didn't even put anti-squeal lube on the pads and they still don't make any noise at all. I suppose you could try that but it wasn't needed on mine. Maybe there is dirt or something between the pad and caliper or maybe an issue with the install ?
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09-01-2011, 11:03 PM | #3 |
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Install was done by a BMW Master Tech whose work I trust and have great experience with
But I didn't supply anti-squeal (as I read they don't squeal..if I had gotten HPS I would have..) so I doubt he got it on his own to apply it
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09-01-2011, 11:42 PM | #4 |
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Perhaps try bedding them in? http://www.essexparts.com/learning-c...ds/post/Bed-in
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09-02-2011, 12:19 AM | #5 |
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I put anti-squeal on and i've been on quite a few track days and no noise, low dust and ZERO brake deposits left on rotor. The only negative i see on stoptech street performance pads was the low initial bite compared to the oem pads. Put some anti-squeal on and you will be good to go!
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09-02-2011, 12:53 AM | #6 |
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Hey Sean as rldzhao already stated try bedding them in.
Did you bed them in properly? Even if you did after a couple weeks of street driving sometimes the layer you applied onto the rotors comes off and you need to re-bed them in. That should fix the noise :thumbsup" |
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09-02-2011, 02:28 PM | #7 | |||
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I'm seeing him again next week for work (unrelated to the brakes) so I'll have him bed them in again Quote:
I have a good amount of brake deposits on my rotors... What's the best way to clean them? Quote:
My tech did the bedding so I assume they're done properly Thanks for the advice
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09-02-2011, 03:12 PM | #8 |
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You didn't mention if this is a complete StopTech brake system, or just the ST pads with the OE brakes. If the latter, I expect you still have some residue from the previous pads that could be part of the problem. You might also want to verify that your tech understands the bedding procedure, as many street car techs do not.
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09-02-2011, 03:16 PM | #9 | |
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ST pads with the OE brakes My tech races himself and has a built BMW, so I feel it's safe to assume he knows how to bed pads in. But I can confirm with him nonetheless. Hell, I'll prly bed the pads in this weekend as I won't see him for at least another week...
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09-02-2011, 03:21 PM | #10 |
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Why wouldn't you just bed them yourself? Go out on the highway, 5 minutes later the process is done. 10 times to 60mph and very hard brake to around 10mph. I don't know that I would want my tech doing this but that's just me.
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09-02-2011, 04:09 PM | #11 | |
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09-03-2011, 12:05 AM | #12 | ||
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I have personally never bedded pads in before while he has does it on a regular basis. Also...I assume you haven't driven on the 101 freeway lol. There isn't a stretch where I could do 60mph then stop then go to 60mph There are cars on there all the time, except between 3am to 5am. But I do have a couple of spots I could try out :P Quote:
I had the OEM pads on for about 6500 miles or so, and maybe 7 track days? less? more? long day today so I can't really think lol
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09-03-2011, 06:35 AM | #13 | |
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The OE pads are not known for problematic transfers, and if they were not squealing before, I'm kind of doubtful that is the problem. But, that doesn't mean that proper bedding will not solve it, since the current pad/rotor contact area might not yet be 100%. Usually, you can tell by looking at the rotor. You should see a totally smooth, unbroken area of contact on the rotor. This sometimes requires several bedding sessions to achieve, since you can't get these pads as hot as race pads. I've had no noise at all from the ST pads that came with my brakes, which is the same high performance street pad. |
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09-03-2011, 12:46 PM | #15 | |
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Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires."
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09-03-2011, 12:50 PM | #16 | |
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I am very happy and will only use Stop Tech pads from now on.
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09-03-2011, 01:10 PM | #17 | |
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I might just do it on my way to the track next time There's a straight, 4 mile road before the track, there are sometimes cars on it, but rare (since I'm there early morning). knock on wood, never seen a cop. I'll find a spot :P but why would you say the freeway is crazy? (if it was, somehow, by chance, COMPLETELY empty?)
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09-03-2011, 01:11 PM | #18 |
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I like the ST pads a lot
I only notice fade towards the end of the afternoon sessions (it's been 100 degress+ these past events) initial bite isn't too great, squeak (in my case) sucks, but they're better than OEM overall Dust wise I'm not sure...I haven't washed my car in over a month and 3 track days lol so my 220Ms look black haha
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09-03-2011, 08:13 PM | #19 |
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Like everyone is saying OP, find a country road that's pretty straight, none or little traffic. Accelerate to about 40~50mph, brake till about 10mph, accelerate back up to 40 or 50 and repeat for about 5 cycles. Then as the brakes start to heat, you'll smell that brake dust, bring the speed up to about 80 (don't get a ticket!) and do 5 more cycles. DON'T COME TO A STOP OR ANYWHERE YOU NEED TO STOP! Let the brakes cool with a 4 or 5 mile drive with no braking at speed.
Each manufacture of pads/disc's are different and require different run-in procedure so what I stated might not be accurate for yours. But I had alot of sqeeking going on at slow braking speed and some groun from the right/front APracing BBK I got installed and today did exactly this run-in for the second time since I installed the brakes. Their nice and quiet now, grab real good and no groun coming to a stop as I burned off some of that old transfer material on the disc. Good luck. I'm sure it'll be fine. |
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09-03-2011, 10:39 PM | #21 |
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Yeah I'll bed them again
Only real issue is I don't have any country road near me lol Nor is there a single straight road around here without cops But I'll find somewhere. just need to look more
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09-03-2011, 10:49 PM | #22 |
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i had 2 guys PM me so I'll just answer here:
You can get the ST Bads/SS lines from Roy@Acuteperformance
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