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      07-03-2016, 02:45 AM   #1
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Stoptech pads keep seizing to rotors?

I have a Stoptech ST60/40 setup, and almost every time I park the car my pads seize to the rotor. This usually results in a very violent (and uneasy) take off when I back out of my garage as the pads basically need to be ripped off of the rotors under the cars power (and there has been a few times it has taken almost 50% throttle to get them unstuck). One time it jerked so violently I thought I broke something. This of course results in leaving uneven pad deposits on the rotors, so I end up spending a day scrubbing them off with some hard stops that cause the front end to shake badly. Not a pleasant experience owning this setup so far because of these issues.

Water definitely contributes to the issue (such as after washing the car or driving in rain) but they have even done it when the car is bone dry. Has anyone else had this issue with Stoptechs? Is there another pad that I can try that will result in less seizing (and less brake dust while I'm at it)?
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      07-03-2016, 05:13 AM   #2
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How easy/hard is it for you to remove and replace the front pads? If it's super hard to do that I have a possible solution.
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      07-03-2016, 11:14 AM   #3
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This only happens for me when it rains - and yes, it's a giant pain in my ass, so now I make sure I drive the car around a bit right when it stops raining so I can avoid the pad deposit.
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      07-03-2016, 12:01 PM   #4
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I think I remember that happening maybe one time ever in the 2 years I had my ST60, and it wasn't significant enough to cause an uneven pad deposit issue. Never had any issues after car washes or driving on the rain though. Are you maybe parking the car without letting the brakes cool off first? What you're describing is what can happen to people who track and then park without doing enough of a cooldown, but I guess maybe it could happen on the street too if you're always bombing the brakes?

Not sure about pad alternatives, assuming you're already on the StopTech Street Performance setup. Ferodo's DS2500 may be available in that shape and is a similar type of pad in terms of performance, but I don't know how it compares in terms of dust.
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      07-03-2016, 12:10 PM   #5
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Quote:
Originally Posted by jphughan View Post
I think I remember that happening maybe one time ever in the 2 years I had my ST60, and it wasn't significant enough to cause an uneven pad deposit issue. Never had any issues after car washes or driving on the rain though. Are you maybe parking the car without letting the brakes cool off first? What you're describing is what can happen to people who track and then park without doing enough of a cooldown, but I guess maybe it could happen on the street too if you're always bombing the brakes?

Not sure about pad alternatives, assuming you're already on the StopTech Street Performance setup. Ferodo's DS2500 may be available in that shape and is a similar type of pad in terms of performance, but I don't know how it compares in terms of dust.
Nah, my brakes are very cool after my commute (.8 miles, lmao) and they're gonna be especially cool after a car wash. I denno... it's weird.
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      07-03-2016, 12:26 PM   #6
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I think, like you were inferring to, the issue is from the Stoptech street performance pads. I have them on my ST-60/40 and have the same problem after a wash and after the car sits for at least a day.
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      07-03-2016, 12:29 PM   #7
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Quote:
Originally Posted by jjw2331 View Post
I think, like you were inferring to, the issue is from the Stoptech street performance pads. I have them on my ST-60/40 and have the same problem after a wash and after the car sits for at least a day.
I guess it's just a good excuse to take the car for a spirited drive to sweep off the pad deposit
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      07-03-2016, 12:33 PM   #8
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Quote:
Originally Posted by Amirsm3 View Post
I guess it's just a good excuse to take the car for a spirited drive to sweep off the pad deposit
true
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      07-03-2016, 01:33 PM   #9
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Wow I'm almost 4 years / 30k miles on the ST 380/365 with the street perf pads and never had such an issue. Doesn't sound right should probably be checked. Good luck guys.
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      07-03-2016, 04:28 PM   #10
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Quote:
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Wow I'm almost 4 years / 30k miles on the ST 380/365 with the street perf pads and never had such an issue. Doesn't sound right should probably be checked. Good luck guys.
Yeah, I'll be going in for my rod bearings soon enough so I'll have them take a peek. Otherwise, It's not that big of a bother 99% of the time.
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      07-03-2016, 05:14 PM   #11
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I have Brembos. They don't stick dry, but definitely do if parked wet and left for a day or two.
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      07-03-2016, 09:49 PM   #12
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OP only time I've had the slight siezing is when there's water involved and sitting for a day or two. But it's never been as violent as what you describe. The only times I'd think this type of thing happening are either when the rotors/pads are wet and left to sit or conversely when they're really hot and not cooled down properly. Any stuck pistons in any calipers?
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      07-04-2016, 12:14 AM   #13
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Quote:
Originally Posted by cenix View Post
OP only time I've had the slight siezing is when there's water involved and sitting for a day or two. But it's never been as violent as what you describe. The only times I'd think this type of thing happening are either when the rotors/pads are wet and left to sit or conversely when they're really hot and not cooled down properly. Any stuck pistons in any calipers?
Not sure about stuck pistons. I compressed all of the pistons when I did the install about 1000 miles ago, but the set was used when I bought it so it's possible one or more pistons are sticking. I doubt this is related to heat. I have only tracked with these once. Most of the time this happens it is just parking it in the garage after normal driving, but I will say water is usually related. I typically drive the car 12 or so miles home after washing it, so maybe this isn't enough to get all the water out of the rotors?
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      07-04-2016, 01:55 AM   #14
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Not sure about stuck pistons. I compressed all of the pistons when I did the install about 1000 miles ago, but the set was used when I bought it so it's possible one or more pistons are sticking. I doubt this is related to heat. I have only tracked with these once. Most of the time this happens it is just parking it in the garage after normal driving, but I will say water is usually related. I typically drive the car 12 or so miles home after washing it, so maybe this isn't enough to get all the water out of the rotors?
12 miles is more than enough to evacuate any water and clean off rotors. I would check pistons and verify. Maybe something is stuck or dragging the pads, causing excessive heat while normal driving and then melting on the rotor while parked to cool down. I doubt it is a pad only issue.
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      07-04-2016, 10:17 AM   #15
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Mine do the same thing after it rains but not as bad! I also have the street pads as well!
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      07-04-2016, 06:21 PM   #16
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My ST40 kit is only about 3 months old, but it has NEVER been a problem for me. I use their Street Performance pads.

Sounds like something is misaligned.
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      07-04-2016, 08:59 PM   #17
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Same after I wash it and park in the garage directly after.
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      07-05-2016, 02:21 PM   #18
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Mine will hold the car from rolling like a parking brake after I wash the car. OEM pads did the same thing but not quite as bad as the stoptech street pads.
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      07-05-2016, 02:32 PM   #19
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Mine had a clunk after a carwash overnight with the Stoptech street pads. Never used any other type so I can't compare. Didn't do it unless I washed the car.
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      07-05-2016, 04:09 PM   #20
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Stock brakes with brembo pads. After I wash and then store my car in the garage the next morning I'll hear a clunk when it starts to roll out. I do lift my e-brake whenever my car is parked. Not sure if that has anything to do with it.
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      07-05-2016, 05:16 PM   #21
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Glad I'm not the only one having this issue. I do believe it is related to water rusting, and sticking the calipers to the rotors. When the car is bone dry it doesn't seem to do it for me. I was just wondering if maybe it had something to do with the pad compound or something.
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      07-05-2016, 06:37 PM   #22
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Mine does the same thing. It is annoying but I didn't notice any visual damage or permanent spots. Keep us posted.
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