07-15-2011, 04:22 AM | #1 |
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Views on 1M Brakes ?
After the views/opinions thus far on the brake package (same as M3 I believe ) on the 1M.
Those that have tracked the car, how have they held up after some solid punishment?. Would you upgrade ? Cheers |
07-15-2011, 06:07 AM | #2 |
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For street use they will be for looks. Even for DE use I wouldn't upgrade. I replaced my fluid, switched my pads, and stood on the brakes all day in near 100 degree temps (road atlanta) without one sign of fade. The only time I would consider it is if I were going racing. Even then I think the brakes are probably sufficient.
I did get some wiggle from the rear end under threshold braking at high speed and had ABS come on quite a few times throughout the day.
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07-15-2011, 06:35 AM | #3 |
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My personal brake test so far: four laps Nordschleife. About 5 minutes between laps to keep everything nice and warm. Stock pads, stock fluid. No fading, no problems.
The 1Ms brake bias leans to the front wheels, whereby that of the M3 is more neutral, locking the rear wheels before it locks the front. Would I upgrade? To what? A brake system that is less effective? No. Why should I? Compare the 1Ms (and/or M3s) brake performance in car tests to that of i.e. Porsches and you will see, that the M3s brakes are very effective. People that try to tell you, that anything that isn't six-piston won't brake, will also tell you, that our planet is a disc and you can fall over the edge if you sail too far.
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07-15-2011, 10:04 AM | #4 |
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Stock everything and after some track use in really hot outside ambient temperatures there was no difference in their performance on the track compared to the road.
Brakes are really superb. The only measurable difference would be that pedal travel increased a bit following a track day; however the bite is still there! |
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07-15-2011, 11:38 AM | #5 |
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Having only tracked one other car, which is a Mini Cooper S with Super Blue and Ferodo DS2500 pads, I found the stock setup to go a little spongey after many hot laps. I'm a fan of strong initial bite followed a smooth, progressive increase in braking force, and the 1M didn't quite deliver. I second Dan that some better fluid and pads will go a long way to help with overall feel. I also second Dan on the rear end wiggle at high speed - woo, that was fun!
A lot of extra pedal travel when things got hot, which made smooth heel and toe a much bigger challenge for me. The wads of brake dust left in the rotor holes was impressive |
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07-15-2011, 01:11 PM | #6 | |
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07-15-2011, 02:33 PM | #7 | |
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Rear-end seems nervous under hard braking. I was afraid to switch off the DSC completely (I was driving in M mode) because I wasn't sure if the tail would brake out under heavy braking, and if so, any (sleeping/remaining) electronics would counteract this? Or ABS ? After a few laps, on this brake-intensive circuit, brakes were smoking when entering pits, and stopping distances were getting longer. I haven't replaced brake fluid, -lining or -pads yet. For street use, the stock brakes are just great ! |
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07-15-2011, 02:42 PM | #8 |
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I think the rear end wiggle is due partly to the amount of front suspension travel. As we all know the suspension sits higher in front and under very hard braking the car dives a lot. I had electronics off 90% of the day and as the day progressed I got used to the rear unloading and wiggling a little. I'm used to my race car which has a lot of downforce so the 1M felt pretty nervous but it never felt like it was going to snap around and I was standing on them in the last 2 sessions. The stock pads on track might as well be sticks of butter.
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07-15-2011, 03:57 PM | #10 |
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Appreciate all the feedback here guys
I was going to look into a 6 piston setup with 380mm fronts and 365mm rear. Pads and fluid are certainly the best option here Cheers |
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07-15-2011, 04:58 PM | #11 |
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I would think the LSD would help a ton with this issue compared with a 135i. Did it seem better than that? Does the M Diff lock completely under hard braking (it should)?
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07-15-2011, 05:04 PM | #12 | |
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It all sounds good.....all these M engineers spend months balancing the brakes, running professional drivers at the Ring, working with pad manufacturers to come up with a good compound for balance and then we know more then all of them and run out to a speed shop and slap some new pads? Think about it? I doubt there are any 1M specific pads out yet. That's my two cents worth. |
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07-15-2011, 05:29 PM | #13 |
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change to a track specific pad. I'm going with PFC01 for my next track day.
On my first track day, i had castrol srf brake fluid and stock pads. The pads work great for a while, then it starts to fade. High speed hard braking and the rear end wiggles a little (happen when full electronics off). Hopefully the track pads will cure the fade. |
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07-15-2011, 06:48 PM | #14 | |
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From initial accounts, the stock 1M pads are very good all around, but it should surprise no one if they don't stand up to more serious HPDE use or racing. |
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07-15-2011, 07:30 PM | #15 | |
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http://www.bmwccaclubracing.com/Info.../Sponsors.aspx
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07-15-2011, 07:38 PM | #16 | |
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And I already have a set of PFC-01 pads awaiting the arrival of my 1M. Neil |
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07-17-2011, 12:58 PM | #17 | |
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06-11-2013, 11:24 AM | #19 | |
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There are so many better ways than changing to a whole new brake system to spend money on a 1M which doesn't go to heavy track duty imho. And why mess with something that already works good? They may not be the trendiest looking rotors and calipers but 1M brakes are doing top quality job when it comes to slowing down. After all if they can stop a E93 M3 Cabriolet then we are blessed with the same system on 1M.
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06-11-2013, 03:36 PM | #20 | |
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my car has now been on 10 different tracks... three of them very high speed. Texas World Speedway, Mid Ohio, and Circuit of the Americas.. I am seeing 150 mph indicated at the end of the straight on all three courses.. Mid Ohio and COTA are the toughest in that one is braking from 150 mph down to about 40-50 for a slow corner *(turn 12 at COTA and entering madness at mid ohio) I have used the stock brakes and pads, aftermarket PF-Z street pads, and PFC-01 track pads. Without a doubt, the track pads have better torque and pedal feel and the car stops shorter. However.. the stock setup is EASILY capable of repeated stops, in HIGH TEMPS (90 plus degrees) without fade or drama from an indicated 150 mph down to 50 mph. As rapter indicated, the pedal travel does get a little longer over time but the pedal feel remains and stopping power is still there. I use Castrol SRF fluid. if more stopping power is needed then get some track pads like the PFC-01 or PFC-08. upgrading to aftermarket calipers or other brake/rotor combos is completely unneccesary and should only be done for aesthetic reasons. |
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06-11-2013, 03:50 PM | #21 | |
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06-11-2013, 07:44 PM | #22 |
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"The mark of a great car is one whose overall competence exceeds what you should expect from its individual components and the 1M does just that", Chris Harris.
BMW 1M-SOLD-: TECH: Evolve Race+N55mids, Evolve IC, Michelin PSS, ER cp, aFe filter, CDVx, Vorshlag camber plates, BMS OCC EXTERIOR: trunk spoiler, blacklines, black grills, IND goodies INTERIOR: Alcantara steering wheel, steel pedals, custom mats, MPower e-brake. |
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