12-27-2021, 02:30 AM | #1 |
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Porterfield R4S review
I figured I would let any prospective buyers know a thing or two about these pads since I just made the switch. Since I've only driven about 100 miles or so on them I can't get too in depth, but I will say that so far my expectations have been exceeded. I purchased these pads really for one reason and one reason only and that is to cut down on dust. With the stock "M" pads I could drive a few miles up the road after cleaning my rims and they would literally be coated in orange dust. It was to the point where I didn't even bother. These pads cut that down dramatically, to what I would consider a normal amount. I mean I can actually keep my rims clean for at least a few days now. With these massive rotors and calipers there is and always will be a dust factor, but its now manageable, and the stopping performance is surprisingly comparable. They aren't quite as "grabby" as the stockers but I don't mind that anyways. I like a more smooth feel to the brakes. They aren't cheap but nor is anything for these cars! I will continue to monitor their performance as they bed in a little more but so far I'm content and would recommend them to anyone looking to correct the dusting issue without hampering performance much at all. Thanks to all who recommended these to me.
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01-11-2022, 02:43 AM | #2 |
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Super interested in set. Please report back after more miles
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01-11-2022, 02:33 PM | #3 |
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I have these on my car. They are pretty good cold, but they need a bit of heat in them to REALLY grab.
Very very very low dust, just SLIGHTLY more than Akebonos. Very easy to clean. The P4S will make some noise when you really get on them in the canyons, but it stops once the pads cool down.
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01-11-2022, 04:06 PM | #4 | |
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01-11-2022, 10:33 PM | #5 | ||
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I would consider Endless MX72s for my next set of pads. They will dust more but I've heard Endless makes some of the best pads in the world.
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01-13-2022, 07:44 PM | #6 |
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^^^ I had both and Endless all day. You will have less brake dust than stock pads.
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01-19-2022, 01:35 AM | #7 |
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Just to give everyone an update here, the Porterfield R4S failed on me only a couple of months in. Ended up cracking a pad during a canyon run from over heating the pad. I would not recommend it for a heavy car with R compound tires.
Too bad because I really enjoyed them as a street pad, but definitely not something you can be aggressive with in high speed twisty roads. Ultimately I lost confidence in my braking about half way into the run and the pad lost a small chunk of pad material during the process. It seems like when these pads exceed their temperature rating, they become very inconsistent. High initial bite followed by very mediocre braking behavior. I am going to have to step up to a race pad and deal with dirty wheels every other day, but I will learn to live with it to avoid having a miscalculation at higher sustained speeds
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01-22-2022, 03:18 PM | #8 | |
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For the tooling around town, these sound okay, but not for what you're doing. Suggest you consider RacingBrake or endless for pads that will be up to the task. Shawn |
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01-22-2022, 06:04 PM | #9 | ||
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I ended up with semi-metallic racing pads which make a ton of dust and noise, but the performance is well worth it.
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01-23-2022, 03:51 PM | #10 |
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02-16-2022, 12:19 AM | #11 |
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I put these on a few weeks ago solely because I despise brake dust, and i’m slightly disappointed. Yes, it’s less, but it’s still enough that I’m not thrilled. My last car was an F80 M3 and I put Akebonos on it and they had almost zero dust and performed great. Was hoping for something similar.
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02-16-2022, 09:09 AM | #12 | |
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02-17-2022, 08:30 PM | #13 | |
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A few local guys used it already and been happy with it.
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02-20-2022, 12:54 AM | #14 |
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You have them on your f90? Where can I get these? No dust?? lol i’m interested!
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02-20-2022, 01:20 PM | #15 | |
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https://f90.bimmerpost.com/forums/sh....php?t=1894635 Been selling quite a lot since its arrival few weeks ago.
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02-21-2022, 05:09 PM | #16 | |
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