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BMW 3-Series (E90 E92) Forum
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How much longer on these pads?
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01-05-2009, 09:54 AM | #24 | |
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Be careful, however. Granted my setup, with the R-comps allows much harder braking, but at the same time, the first time those pads exceed their Max Operating Temp (MOT), it's gonna scare the snot out of you. The pedal is firm as hell but provide absolutely no friction. Of course, once you go R-comp and race pads, you'll be heating the brakes so much that you'll fry the piston dust boots really quickly. With titanium shields, I fried a new set of dust boots in one day. DOH! |
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01-05-2009, 10:34 AM | #25 |
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I just noticed its recorded in windescreen then YouTube formated it 4:3. This could explain why the runoff looks small to me. My videos do the same crap and it drives me nuts!
Brake update.... I contacted Performance Friction to see if they can make me a set. I read on bimmerforums that someone had them whipped up for a 335. I tried contacting them last MARCH and they never got back to me. We'll see! |
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01-05-2009, 10:36 AM | #26 | ||
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01-05-2009, 11:02 AM | #27 | |
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I've also considered the Dunlops you are running. Decisions....decisions.
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01-05-2009, 11:04 AM | #28 |
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You get no rubbing with your E92? Why not try Cool Carbon's ST/TR pads?
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01-05-2009, 11:05 AM | #29 |
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Well, in some spots there is very little runoff, just pass and pray
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Last edited by Bubbles; 01-05-2009 at 11:27 AM.. |
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01-05-2009, 11:14 AM | #30 | |
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SB, Terra, 6MT. Only a few mods here and there.....nothing extreme!
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01-05-2009, 11:34 AM | #31 | |
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bubbles sell your car, I found you a new one http://www.zpost.com/forums/showthread.php?t=197724
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01-05-2009, 11:56 AM | #32 | |
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The Cool Carbon's are a consideration but I'm pretty financially drained right now after Christmas and the custom exhaust work last week If PF doesnt get back to me, I suppose I would have to drop the dough on CC's |
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01-05-2009, 12:03 PM | #33 | |
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I stopped worrying. Lots of really high performance brake kits don't even come with the boots since they fry so easily. Just try not to get grime/salt/crap in the pistons and you'll be fine. The dust boot protects the inner piston o-ring, which is rubber. If you just rebuild your brakes every year, it shouldn't be a problem. $20 a kit for rebuild. Alternatively, you can fab up some proper ducts to feed the center of the rotors. Being that I got black flagged by some idiot who thought my glowing rotors were a safety issue (lol), I might have to get some ducts fabbed up. |
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01-05-2009, 12:08 PM | #34 |
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If you're willing to swap out pads, Hawk makes the HT-10 for our front OEM calipers.
They are great, but are a true race pad. They will not work well on the street and need a lap of warmup before being really effective. I can swap out front OEM pads in about 10 minutes a corner, so it's really not that hard once you get used to it. They are reasonably friendly to the rotors, too. Porterfield makes the R4 race pads for our front calipers, but I've found that the Kevlar part of it sucks. The glue that holds the kevlar together doesn't work above a certain temperature. As a result, the pads start disintegrating and cracking after a few track sessions. I've run the Porterfield R4-E in the rear OEM calipers to good effect. It helped get rid of some of the wiggle I got under heavy braking. They aren't perfect, however. I believe I get them above the max operating temp because they do poop pad material on my rotors. Again, you would need to swap those out after a track event. But drive em home, since cold pads are really abrasive and will help clean off your rotors. To be honest, I prefer swapping pads. It allows me to inspect my brake system prior to track days. Getting to a high rate of speed is optional. Slowing down of your own volition is not. |
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01-05-2009, 05:24 PM | #35 | |
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I can't fit in that thing!
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01-05-2009, 05:25 PM | #36 | |
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01-06-2009, 08:36 AM | #37 | |
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On another subject, what do you think of this caliper bushing upgrade? $200 CAN for the 4 corners. http://bimmershop.netfirms.com/Bimme...roducts_id=422
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SB, Terra, 6MT. Only a few mods here and there.....nothing extreme!
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01-06-2009, 11:00 AM | #39 | |
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Basically you have to make sure it's greased well otherwise it'll bind. I *might* try it out on my rears. The stock guides are foolproof but flex like a mofo. These guides might be the low cost "feel" enhancer. You know, kinda like that stimulating cream they sell in gas station bathroom vending machines. |
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01-06-2009, 11:02 AM | #40 |
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And FYI guys, I am a strong advocate of checking your brakes after each track day. I have lost brakes deep into triple digit territory...and it is not for the faint of heart.
HPFP issues are annoying. Brake issues can kill ya. |
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01-06-2009, 12:42 PM | #43 | |
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Busting inner piston seals, popping brake lines, bracket bolts that worked their way loose....those all can cause catastrophic loss of braking ability. BTDT on more than a few of the above. On day 31, I checked and found that my front right caliper bolt vibrated itself loose and was two threads away from coming off. Good thing I found it in the paddock and not in the heavy braking zone. Moreover, I am not sure if the BMW system has "ice mode" but here's an example of what happens when you run out of pad on another ABS equipped car: http://www.protege5.com/forum/showth...hp?t=123684925 |
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01-06-2009, 02:20 PM | #44 | |
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Pad Update:
Performance Friction got back to me and said they dont have the demand for a 335 specific pad. Porterfield also got back to me and amazingly enough said they can take an existing pad and modify the backing plate to work with the 335. The cost is stupid high though if you ask me. Christ, its a BRAKE PAD not the fuselage to the space shuttle. Are they usually this high when directly from Perf. Frict? The following email response is in regards to PF-01... Quote:
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