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      07-02-2014, 06:48 PM   #1
NullCheck
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Brakes are unbelievable.

I actually properly bed the brakes and I can tell you guys there is just no comparison between this car and the old M3. Some of it could be the PSS tires vs the PS2s in my old M3, but regardless, this car just surprised me on more than one occasion now when it came to stopping. In fact, the brake pedal is way too sensitive and it stops way too quickly!

This is the steel brakes btw. I m not sure how these will work in the race track. We'll see soon
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      07-02-2014, 07:53 PM   #2
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Steel or CCBs?

Sorry, I'm an idiot. Missed the last part of the post.
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      07-02-2014, 08:07 PM   #3
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Quote:
Originally Posted by JDUni1 View Post
Steel or CCBs?
Quote:
Originally Posted by NullCheck View Post
I actually properly bed the brakes and I can tell you guys there is just no comparison between this car and the old M3. Some of it could be the PSS tires vs the PS2s in my old M3, but regardless, this car just surprised me on more than one occasion now when it came to stopping. In fact, the brake pedal is way too sensitive and it stops way too quickly!

This is the steel brakes btw. I m not sure how these will work in the race track. We'll see soon
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Originally Posted by JDUni1 View Post
Steel or CCBs?
Steel.
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      07-02-2014, 10:46 PM   #4
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Quote:
Originally Posted by NullCheck View Post
Some of it could be the PSS tires vs the PS2s in my old M3, but regardless, this car just surprised me on more than one occasion now when it came to stopping.
Almost all modern cars can lock up the brakes (or threshold brake with ABS) and come to a quick stop once or twice. So, the reason you are stopping quickly is (mostly) due to the tires, and the slightly lessened weight compared to the previous gen M3.

The true test of a performance brake system is how it resists fading, and by all accounts, the steel brakes are doing a damn fine job of resisting fading.
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      07-02-2014, 11:12 PM   #5
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I'm just waiting to here how the dimples in the rotor are not exactly symmetric ...


Cheers.

Hey, if I didn't like you I wouldn't tease you.
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      07-02-2014, 11:16 PM   #6
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Buahahhaa @ersin.

You are the man. I've waited for an opening for hours now!
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      07-03-2014, 12:00 AM   #7
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Quote:
Originally Posted by JDUni1 View Post
Steel or CCBs?

Sorry, I'm an idiot. Missed the last part of the post.
Really! There's a thing called the backspace button. Why send the message just because. Like, you caught the last part of the message.
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      07-03-2014, 12:01 AM   #8
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Quote:
Originally Posted by Sir Loin View Post
Steel.
Cast iron, absolutely not steel...
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      07-03-2014, 12:38 AM   #9
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Quote:
Originally Posted by JDUni1 View Post
Steel or CCBs?

Sorry, I'm an idiot. Missed the last part of the post.
It happens. I do that all the time.
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      07-03-2014, 01:15 AM   #10
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Quote:
Originally Posted by Caelric View Post
Almost all modern cars can lock up the brakes (or threshold brake with ABS) and come to a quick stop once or twice. So, the reason you are stopping quickly is (mostly) due to the tires, and the slightly lessened weight compared to the previous gen M3.

The true test of a performance brake system is how it resists fading, and by all accounts, the steel brakes are doing a damn fine job of resisting fading.
Thank you. ALL modern performance cars can lock up the brakes.
Most of how the brakes feel is dependent on the pad and tires.
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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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      07-03-2014, 01:52 AM   #11
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Quote:
Originally Posted by aus View Post
Thank you. ALL modern performance cars can lock up the brakes.
I've learned that making absolute statements (such as saying ALL) is often, though not always, incorrect.

You're probably right about all modern cars, but there may be an exception out there.
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      07-03-2014, 03:53 AM   #12
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Quote:
Originally Posted by ersin View Post
I'm just waiting to here how the dimples in the rotor are not exactly symmetric ...


Cheers.

Hey, if I didn't like you I wouldn't tease you.
Well played Ersin!
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      07-03-2014, 04:06 AM   #13
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Quote:
Originally Posted by Caelric
Quote:
Originally Posted by aus View Post
Thank you. ALL modern performance cars can lock up the brakes.
I've learned that making absolute statements (such as saying ALL) is often, though not always, incorrect.

You're probably right about all modern cars, but there may be an exception out there.
True, but a very nice hedge by throwing in the word "modern". If he had used the term "all NEW cars", I'm sure we could have named several Eastern European and Chinese specials without that capability
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      07-03-2014, 06:27 AM   #14
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Quote:
Originally Posted by TheIceStormOf06 View Post
Really! There's a thing called the backspace button. Why send the message just because. Like, you caught the last part of the message.
I'm sorry to have upset you, and apologize for wasting your time. Didn't realize posts on a BMW fourm were so scrutinized by it's users. I'll be sure and run everything I do on the forum past you. Troll
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      07-03-2014, 06:58 AM   #15
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Yes, the content on this forum is all relevant and meaningful, and it must be carefully edited by the poster. You didn't read that in the instructions?
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      07-03-2014, 07:05 AM   #16
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The brakes are amazing in feel on the street. Probably an unsung part of this car to date.
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      07-03-2014, 07:48 AM   #17
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It's not the tires. I've got PSS, and lighter wheels on my E92, and the M4 I test drove is a step above. Feels very close to my friends 991C2S, which had excellent brakes.
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      07-03-2014, 08:28 AM   #18
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Quote:
Originally Posted by JoeFromPA View Post
The brakes are amazing in feel on the street. Probably an unsung part of this car to date.
I don't think there is any part of this car BMW hasn't hired a heavenly choir of engineers, marketing guys and journalists to croon about. The hype is strong with this one.
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      07-03-2014, 09:22 AM   #19
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Really? You've read praise from BMW about the non-CCB brakes? Pray tell.

For street driving, these brakes are phenomenal and I can't wait to break them in myself. What combination of master cylinder + brake lines + hydraulic pressure + caliper design + pad design they went with just results in ridiculous pedal feel.
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      07-03-2014, 09:26 AM   #20
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Quote:
Originally Posted by modkrazy View Post
I don't think there is any part of this car BMW hasn't hired a heavenly choir of engineers, marketing guys and journalists to croon about. The hype is strong with this one.
Have you actually driven one?
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      07-03-2014, 10:48 AM   #21
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Quote:
Originally Posted by JoeFromPA View Post
For street driving, these brakes are phenomenal and I can't wait to break them in myself. What combination of master cylinder + brake lines + hydraulic pressure + caliper design + pad design they went with just results in ridiculous pedal feel.
Does BMW use steel braided brake lines on this one? I ask because I've heard they make pedal feel even better. I've replaced rubber with steel braided on several cars I've owned. You know what? I can't feel any difference. Even under hard braking.


Cheers.
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      07-03-2014, 10:48 AM   #22
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Quote:
Originally Posted by JoeFromPA View Post
For street driving, these brakes are phenomenal and I can't wait to break them in myself. What combination of master cylinder + brake lines + hydraulic pressure + caliper design + pad design they went with just results in ridiculous pedal feel.
Components help, and these cars definitely have good hardware. Keep in mind, however, that key specifications of the vehicle architecture also have just as much influence (if not more) on the braking performance.
  • Weight (lower = better)
  • Weight distribution (rearward = better)
  • CG (lower = better)
  • Wheelbase (longer = better, at least for braking)
The Porsche 911 is the industry benchmark because Porsche has focused on all these criteria. The 911 is a pretty light car, so the operating pressures are lower than comparable cars. The car is also inherently rear biased, and this combined with a low CG yields a pretty good weight distribution under high-decel conditions. As a result, the front and rear brakes are doing a similar amount of work, and (again) at lower pressures. Low pressures = low system deformation due to compliance (caliper deformation, line deformation, firewall deformation) which means good pedal feel.

The M3 is no 911 in this regard, but I'd say they've gotten the car to a pretty good place (certainly best-in-class) in terms of the characteristics listed above.
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