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03-12-2015, 03:15 PM | #1 |
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Question, anyone with the standard brakes tracked their M3/M4?
I have been looking up and down to find any reviews of the M3/M4 on the track with standard 4 pot brakes and I am wondering if anyone here may have one without the Optional MCCBs.
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03-12-2015, 03:26 PM | #2 |
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Yes, but only one session thus far. However, I was very impressed with them. Only thing I needed to do was change the stock street pads for Pagids. On my E92 which I tracked a couple dozen times I had SS lines, high temp fluid and track pads yet would still get noticeable wilt just like the E46 . The stock brakes on the F8x are better than the current M5/6 brakes (even if curb weight was the same) and are the closest BMW have ever got to P-car brakes which never ever let me down during track days. Just make sure to change out the stock pads (plus brake fluid every few sessions) and you should be very pleased.
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03-12-2015, 03:54 PM | #4 | |
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03-12-2015, 04:16 PM | #5 |
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Definitely RS29s for steel brakes, so proven. A buddy of mine has used the RSLs and, as well as a ton of noise on the street, he had a bear of time bedding them in at the track with a ton of juddery feedback through the wheel which neither he nor I have had with RS29s. He said they were a new ceramic material or something but whatever it is it didn't seem to do his rotors too much good, though stopping power was there.
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03-12-2015, 07:15 PM | #9 |
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OP, what level driver are you?
If you're just starting off, no need for track pads. Save the $800 for more track time!! .
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Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires."
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03-12-2015, 09:01 PM | #10 |
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Only thing I can add, is that m mode faded my brakes in 2 laps but it ran fine with it off for the day.
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03-12-2015, 10:22 PM | #11 |
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I have no experience at all with BMW brakes, so I really should not comment, but the latest TC Kline article in Roundel had very unexpected comments on brakes. I won't repeat it here as it would be out of context, I am sure you can read it yourselves, but the issue with that article IMO was it does not mention the pads used on that car.
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03-12-2015, 11:31 PM | #13 |
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I've been using Carbotech XP12/10 with success on the track with my M4. Switched to SS lines and SRF fluid also. I've not getting anymore fade or soft pedal within 20 minute sessions.
FWIW my advanced driving instructor drove my car on track and said the brakes were "amazing". He's been racing for over 20 years in all sorts of different types of cars. The carbotechs are track only pads, they squeal a ton on the street.
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03-13-2015, 03:03 AM | #14 |
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pagid rs29 here, stock everything else and I haven't had to even bleed the brakes, the calipers are great and I don't think the lines have trouble..
SRF and SS lines are ideal, but this isn't drastically worse than my gt3 with rs29/SRF both on hoosiers. Braking G's are consistent claims telemetry every time and I'm at the track basically every weekend. The most important difference that helped the braking with this car is to brake in three stages, about a 3rd briefly and then just before ABS and then taper off. This seems to keep the car the most stable and create the best corner although it shortens the straights a bit because I am braking just a bit earlier than normal and trailing slightly. If you stab straight to ABS the back seems to dance a bit. |
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03-13-2015, 01:35 PM | #15 |
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I am good on the track =). My main concern is the idea of paying 8k for brakes that while are amazing would be on a car that will be tracked once a month during spring and summer... maybe two to three times in August. This is going to be my daily driver.
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03-13-2015, 02:45 PM | #16 |
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Back to back Ring laps, 10 min cool down between and they were amazing. The steel brakes that is. Loud squeaks was my only complaint. Car had 1500 miles then, zero fade though, perfect feel.
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03-13-2015, 07:08 PM | #17 |
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Just look at the E9x M3. Terrible brakes stock, but they held up ok for a lot of people with SS lines and track pads, but need a little brake management.
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Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires."
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03-14-2015, 07:59 PM | #18 |
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I did back to back days at Spring Mountain with PCA 2 weeks ago. Hoosier 285 and 295 with ATE 200 and Pagid RSL pads. Never got the RSL's bedded in right, probably because they are ceramic and OEM are organic. The car slowed really well but with major judder. Only 20 minute sessions but I was hard on the brakes and never had a bit of fade. The RSLs advertise better initial bite than the RS29s and I completely agree. I have used RS29 on my turboed E46 M3 with good results but the initial bite was always a bit less than I would like. I'm going back to RS29s for the M4. The RSL pads would be good for new rotors that never see organic pads.
Terry
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03-15-2015, 06:57 AM | #19 |
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I have done only one 3 day event thus far and I picked up the car at the dealer back from ED on the evenening I was heading to the track (talk about tight timing ), so I did not get a chance to swap the brakes.
So I ended up running the OEM pads. I was very satisfied with the overall brake's performance. I was actually quite surprised with the performance of the stock pads. I did not expect much from them, but they proved to be decently adequate at the track for street pads. Knowing I was on street pads, I did quite a lot of brake management, but I did not get any fade at all and not too much pad deposit. The pads did wear down significantly after 3 days though. I can't wait to try these brakes with proper track pads .
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03-15-2015, 08:43 AM | #20 | |
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03-18-2015, 04:42 PM | #21 | |
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By comparison, the stock steel F80 brakes with just a pad swap refuse to wilt. Last edited by Carl L; 03-20-2015 at 10:52 AM.. Reason: wrote competition instead of comparison |
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03-18-2015, 04:47 PM | #22 |
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I would go with Performance Friction pads, whenever they release the shapes for the F80. I never bothered bedding them in, even when switching between multiple pads, and yet they still perform as they should with no brake shrudders or high spots on the rotors. The compositions on the Pagid pads seem to be outdated and underperforming comparing to more modern PF pads.
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