09-19-2023, 06:14 PM | #45 |
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It looks like copper, did you run them down further or replace? I have DSUno with 18.8mm thick pad, 8mm material left and it's already appearing. If that's "worn" at 63%, value is crap.
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09-19-2023, 07:47 PM | #46 |
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I'm still running them. No issues with cracking/delaminating.
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09-20-2023, 06:12 PM | #47 |
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I called Ferodo distributor and while they were surprised it was rivetted, it should be fine as it's a softer material than the rotor or friction compound. Usually it's a brass-like material. Apparently most Pagid pads are also rivetted. Good to know. Although, I might have to replace mine anyway due to glazing.
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09-21-2023, 09:10 AM | #48 | |
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05-06-2024, 11:17 AM | #50 |
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333 is designed to be a front-only pad with a higher CoF at lower temps than 01 but is digressive so at high temps its CoF is similar to 01. 01 has better heat resistance, modulation and hot bite. 333 has superior cold bite and is designed to work well with oem ABS systems. 333 should be paired 331 on the rear. Wear rates should be similar. 333 isn’t widely available for different calipers and I think 331 has even fewer applications. I haven’t used them but I know people who have used 333-331 and they all say they are great pads.
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05-06-2024, 01:33 PM | #51 | |
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11 used to be my fav, but I’ve gotten to where I don’t like the ever increasing bite at the end of the braking zone when they get hot, so going to try 01 F&R even tho they’re “old” tech. I tried the 39s up front, had a little too much bite for my preference. And I don’t really care for 08s. |
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05-06-2024, 01:46 PM | #52 | |
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I’d recommend trying 13 or 39. 13 is fairly flat and has the highest CoF over the widest temp range whereas 39 starts off progressively, hits the highest CoF of any PFC compound, and the drops off digressively at higher temps. I’ve used combinations of 11, 13 and 39 at different tracks and tires. There’s also new 82 and 83 which are endurance compounds. |
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05-06-2024, 02:32 PM | #53 |
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Never really followed up on the 333 pads. I didnt dislike the 333 but I probably wouldnt go for them again.
For whatever reason I went through them fairly fast compared to a 08/11 set. They went about the same wear as a set of ferodo 1.11 I tried. Want to say it was 4 days. Still a couple mm on them but I have in my emergency stash. They did perform without a hiccup. I was just chasing lower wear rates when i tried 333. 08/11 are more plentiful, last a bit longer, roughly felt the same, and dont require special ordering. They do make a little more noise tho.
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05-07-2024, 01:50 PM | #56 | |
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Applications: GT3, GT4 front, TCR, Rally Tarmac, Rallycross
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TC Kline coilovers and camber plates, Bimmerworld TA5R 18" 10.5, RE71RS 295, monoball thrustarms, SPL toe arms, Powerflex diff bushings/bracket, AP Racing 9660, PFC 08, Spiegler brake lines, AA midpipe, VTT crankhub, VRSF charge/j pipe, Turner tray, BM3 CS Youtube: Driver407 |
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05-07-2024, 04:01 PM | #57 |
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BimmerWorld highly recommends 333/331 for track use and they used them in their f82 GT4s. Not sure about g82 GT4s & GT3s.
Last edited by M3SQRD; 05-07-2024 at 04:48 PM.. |
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05-07-2024, 04:49 PM | #58 |
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05-09-2024, 02:29 AM | #60 | |
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11s are definitely progressive and bite up more as they get hot at the end of long braking zone: https://pfcbrakes.com/pfc-brake-pad-compounds/ They used to be a fav of mine for the bite, but as I’m working on finite braking techniques I find the extra hot bite harder to be smooth with. My issue with 39 is I can’t find a comparable rear pad with close to as much bite. For the 275/295 staggered setup on my M2, and running my coilovers stiff up front and slightly softer in the rear, I can have quite a bit of rear pad bite without worrying about locking the rears. Front 39s and rear 01s was too much bite bias to the front. I’d never heard of the 05, and haven’t seen any torque curve data on them. Have you all? That leaves me with my original question of 01 vs 333, and I might just have to try a 333 set to see how it works with my particular setup. It’s bite being close to the 39 worries me a bit, but it is digressive, so may it’d work better with my staggered setup. Altho, it is the fastest wearing pad compound that PFC makes. |
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05-09-2024, 05:56 AM | #61 | |
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Last edited by M3SQRD; 05-09-2024 at 06:01 AM.. |
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05-09-2024, 06:07 AM | #62 |
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Yes. Ferodo uses copper pins, not rivets, that are attached to the upper surface of the backing plate and are softer than the pad compound so they wear away with zero effect on pad performance. Pads with rivets, you find the rivets flange on the backside of the backing plate. Carbotech still rivets pad material to the backing plate in addition to bonding the compound to the backing plate.
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05-09-2024, 02:39 PM | #63 | |
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I’ve contemplated running an 11 in the back bc I’m not worried about locking rears vs fronts with my staggered setup, and the rears don’t get super hot so the 11 bite shouldn’t ramp up dramatically. |
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05-09-2024, 03:02 PM | #64 | |
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If I run 39 on the rear, the rear gets a good workout and the bias shifts ~8-9% to the rear and I still get no lockup. |
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