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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > Cool Carbon Brake Pads Installed! (Coupon Code Included)



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      06-01-2009, 01:22 PM   #45
Bubbles
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Quote:
Originally Posted by kenneth View Post
Thanks Bubbles. I found the Bavauto deal this morning and ordered on the spot
Make sure you use ample breakquiet.

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Originally Posted by ToadHollow View Post
I think this (downshifting) is more out of habit than anything for me ....... no hard shifting (high revs) just gradual inline with the RPM shift points.

roger that.
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      06-01-2009, 05:43 PM   #46
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I have had these pads since last August. They were installed on rotors that had stock pad material on them. I did break them in, 30, 50, 70, 90, 120, 140km/h stops.
I only did this once. Car sat overnight, drove 7 hours the next day to Tremblant, track the following day. Here's the problem......
On the street they are fine, firm pedal, noticebly better stopping power, etc.
On the track, once they are hot, we are getting vibrations through the steering wheel, most notably, turns 2 and 4 at Mosport, which are lighter braking.
Has anyone experienced this with these pads??
Maybe I should have done the break in 3-4 times
I have ordered slotted rotors, and will need new pads soon as well.


TIA!
Chris
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      06-01-2009, 05:48 PM   #47
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Quote:
Originally Posted by rpms44 View Post
I have had these pads since last August. They were installed on rotors that had stock pad material on them. I did break them in, 30, 50, 70, 90, 120, 140km/h stops.
I only did this once. Car sat overnight, drove 7 hours the next day to Tremblant, track the following day. Here's the problem......
On the street they are fine, firm pedal, noticebly better stopping power, etc.
On the track, once they are hot, we are getting vibrations through the steering wheel, most notably, turns 2 and 4 at Mosport, which are lighter braking.
Has anyone experienced this with these pads??
Maybe I should have done the break in 3-4 times
I have ordered slotted rotors, and will need new pads soon as well.


TIA!
Chris

Should have used a emery cloth to clean most of the OEM brake material off. Pull the rotors and use the cloth then bed.
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      06-09-2009, 03:07 PM   #48
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bavauto has them on sale right now. just ordered a set...
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      06-09-2009, 04:50 PM   #49
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The only thing I don't like about these pads is the fact that they throw heela dust ........... didn't think it was possible over the OEM.

On the other hand, performance outweighs the dust factor .....
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      06-13-2009, 06:05 PM   #50
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One more question about the Street/Track cool carbons pads. Are they ok to use on track with street tires?
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      06-14-2009, 12:48 AM   #51
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One more question about the Street/Track cool carbons pads. Are they ok to use on track with street tires?
They are the ultimate!
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      06-14-2009, 11:03 PM   #52
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Just came back from the track. These pads are awesome! My tires became way greasy before these pads even showed signs of fading (actually, to clarify - they did not fade at all!).

I cannot compare these pads to OEM pads on the track as I haven't run the E90 OEMs at the track. I did run the OEM E46 pads with my 330ci and those faded at the end of the track session.

Love these pads!!! Thanks Mr 5 for the recommendation!
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      06-15-2009, 11:57 AM   #53
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Quote:
Originally Posted by who's ur daddy? View Post
Just came back from the track. These pads are awesome! My tires became way greasy before these pads even showed signs of fading (actually, to clarify - they did not fade at all!).

I cannot compare these pads to OEM pads on the track as I haven't run the E90 OEMs at the track. I did run the OEM E46 pads with my 330ci and those faded at the end of the track session.

Love these pads!!! Thanks Mr 5 for the recommendation!
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      06-15-2009, 01:31 PM   #54
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The only thing I don't like about these pads is the fact that they throw heela dust ........... didn't think it was possible over the OEM.
bummer. I was hoping these would be a little less dusty than OE, but you cant' have it all, performance and cosmetic. Sounds like these pads are similar to the Hawk HP+. I may still give em a shot.
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      06-15-2009, 01:46 PM   #55
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bummer. I was hoping these would be a little less dusty than OE, but you cant' have it all, performance and cosmetic. Sounds like these pads are similar to the Hawk HP+. I may still give em a shot.
The performance upgrade is worth a little more dust ....... no worries there.
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      06-15-2009, 02:06 PM   #56
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great review, Craig!

P.S Give me a call back when you get a chance... returned your call from the other day.

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      06-16-2009, 09:51 PM   #57
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Forgot to add: my mechanic recommended against the anti-squeal compound as I was going to the track - said it would smoke terribly. Was worried about noise, but decided to go with no compound. No noise whatsoever.

Maybe when the temps get cold again?
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      06-17-2009, 10:10 AM   #58
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Forgot to add: my mechanic recommended against the anti-squeal compound as I was going to the track - said it would smoke terribly. Was worried about noise, but decided to go with no compound. No noise whatsoever.

Maybe when the temps get cold again?
Find a new mechanic

Never had a "smoking issue" and it's never cold here.
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      06-17-2009, 11:29 AM   #59
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Forgot to add: my mechanic recommended against the anti-squeal compound as I was going to the track - said it would smoke terribly.
Definitely not the case with the better stuff out there. Try the new Permatex Ceramic Extreme (the purple stuff). We've used it at track days without issues. It stays pliable all the way up to 1600F, long after most compounds have burned away or flaked off.
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      06-17-2009, 01:06 PM   #60
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Definitely not the case with the better stuff out there. Try the new Permatex Ceramic Extreme (the purple stuff). We've used it at track days without issues. It stays pliable all the way up to 1600F, long after most compounds have burned away or flaked off.
Yep. It's sort of expensive compared to others but worth it.
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      06-17-2009, 01:40 PM   #61
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Is this the stuff you are talking about? It's purple, and I assume it is, but the word "lubricant" doesn't sound quite right...

http://www.amazon.com/Permatex-24125.../dp/B0018PSASU

Thanks....

BTW, I picked up a set of Cool Carbon pads from BavAuto after reading this thread. If Mr. 5, Bubbles, AND Orb swear by them, I'm in...

Now, just I just have to make sure I don't screw up the bedding procedure. About what grit is emerory cloth? I have everything from 80 to 320 grit sandpaper, plus steel wool, but no emory cloths. Or should I go buy one? Can you get them at the auto parts store?
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      06-17-2009, 01:59 PM   #62
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That's the stuff! You'll only need a small quantity on the pad back plate everywhere it touches the caliper or cage (sometimes called anchor or bracket). That size jar will last many lifetimes. I stay away from the RTV-like "disc brake quiet" stuff. I've seen it overused many times, which can actually bind up pads in the cage, causing them to stick and heat up.

I would never recommend using sandpaper on iron rotors. I prefer a Flex-Hone for the quickest job, which the more informed brake shops would have. If doing it by hand, I use Scotch-Brite and plenty of elbow grease. Get it at your local grocery or hardware store (or under the kitchen sink when the domestic operations manager isn't around!). You do not want to remove iron, just the pad transfer layer.
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      06-20-2009, 11:33 AM   #63
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Originally Posted by ToadHollow View Post
The only thing I don't like about these pads is the fact that they throw heela dust ........... didn't think it was possible over the OEM.

On the other hand, performance outweighs the dust factor .....
Do you still think that the dust is bad?
The reason why I ask is because they throw more dust initially but once they bed in then they're fine.
I just don't want people to get hte wrong idea.
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      06-20-2009, 01:26 PM   #64
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I'm surprised by the comments of high dust. I don't find that these produce any more dust than the OEMs. Kinda woulda bet money that the OEMS were worse actually...
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      06-20-2009, 03:24 PM   #65
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Quote:
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Do you still think that the dust is bad?
The reason why I ask is because they throw more dust initially but once they bed in then they're fine.
I just don't want people to get hte wrong idea.
Sorry, I probably should have updated my previous post .....

The first couple of weeks the dust was disgustingly heavy. Now the dust has tapered off to be the same or a little less than the OEM. I'm one to normally take it easy on the brakes (at 20K miles my OEM pads were only 1/2 worn) so maybe these just took a little longer to seat.

Either way, I love the performance and feel of these brake pads!
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      06-23-2009, 10:52 AM   #66
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Questions...

I found the Permatex Purple Stuff on Amazon.com, but am on the waiting list for a HPDE at Gingerman in Michigan this weekend. I wanted to put these new pads on my car this week and bed them in, but haven't had much luck finding the Purple Stuff locally. I tried a few Murray's/Pep Boy's with no luck. Does anyone know where I can get this stuff in the South Chicago/South Suburbs? Also looking for the Motul 600? I will post a similar question in the Local Midwest forum.

Also, does the bedding process need to happen RIGHT after you put the pads on the car? I live in a relatively urban area and it will take me 20 minutes of light to light (stop and go) traffic until I can get to an area where I can do 70 to 20 MPH stops with out having someone rear end me or endangering pedestrians. It will probably take 10 stop lights (30 or 40MPH to zero) to get to the area. If needed, I can use my Uncle's garage, who lives about 3 lights away from the area. I don't want to not bed them in properly and then have the problems that others have had.

Thanks. I'm learning more forum this forum everyday...
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