Why a big brake kit wont make you stop any faster - Civinfo
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post #1 of 53 (permalink) Old 4th April 2013, 20:05 Thread Starter
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Why a big brake kit wont make you stop any faster

Very intrested to know peoples thoughts on this especially the guys who have a bbk installed. Cheers boys

Why a Big Brake Kit Won't Make Your Car Stop Faster - Autos.com
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post #2 of 53 (permalink) Old 4th April 2013, 20:34
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Very interesting and right. The main reason for buying a bbk (and the reason I opted for one) is to stop brake fade when driving hard. The standard brakes are good for a couple of high speed stops then start to die. A bbk doesn't do this.
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post #3 of 53 (permalink) Old 4th April 2013, 20:35
 
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The article actually contradicts itself with this statement:

"Because these brakes dissipate heat more effectively, they reduce brake fade. Brake fade occurs under high temperatures, can be caused by boiled brake fluid, and results in a soft pedal and elongated stopping distances."

Most people know that the limit of a braking system would be attributed to the tyres grip on the road....BUT under heavy load, Bigger more efficient brakes stop problems like Brake Fade, where normal brakes might suffer and thus offer better braking distances in those situations.
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post #4 of 53 (permalink) Old 4th April 2013, 20:38
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I can't read the link as it won't load for me

Mine definitely stops me quicker at higher speeds, where the standard brakes couldn't break the tyres grip at that speed. I can get the ABS to come in ridiculously easy now regardless of speed, something the standard set up couldn't do.

But that's not why I bought them - I got them so I could stop repeatedly, over and over again, hard, while on track. My standard brakes wouldn't do that.

It's true though, below a certain speed I'm not stopping any quicker than with the standard set up
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post #5 of 53 (permalink) Old 4th April 2013, 20:38 Thread Starter
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Cheers fellas i think i just had in my head that by buying a 4-6 pot bbk you would be looking at halfing the stopping distances currently being delivered by oem setup
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post #6 of 53 (permalink) Old 4th April 2013, 20:56
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Without even reading the article I'm saying balls . they definitely stop you better And quicker and as touched on will do it repeatedly from well into triple figures
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post #7 of 53 (permalink) Old 4th April 2013, 20:58
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When i had my civic with a bbk, it allowed me to carry more speed and brake later with confidence unlike the oem sponge setup where you had to always allow plenty of braking distance and allow for fade to guaruntee not ploughing into something
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post #8 of 53 (permalink) Old 4th April 2013, 21:26
 
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Whilst true that your stopping distance is limited by the grip of the tyre before lock-up, most of us running grippy tyres have much more overhead for increased stopping power before friction is overcome.

An aggressive race pad on stock rotors, hoses etc would probably give you the same stopping distance on a street legal tyre as a BBK, yes.

But the BBK would do 30 laps without fading and the stock setup just 3 laps.
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post #9 of 53 (permalink) Old 4th April 2013, 21:26
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Opinions aside, and although on the face of it, it does seem counter intuitive. The physics they explore here seems solid.
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post #10 of 53 (permalink) Old 4th April 2013, 21:28
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Of course you'll get improved stopping power - you're utilising larger discs and pad areas than in the standard caliper.

Combined with the ability to dissipate heat more rapidly to prevent fade you've got an all around improvement.
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post #11 of 53 (permalink) Old 4th April 2013, 21:30 Thread Starter
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Quote:
Originally Posted by stoney View Post
Without even reading the article I'm saying balls . they definitely stop you better And quicker and as touched on will do it repeatedly from well into triple figures
Cheers stoney i thought this was the case - when i went out it the red supercharged fn2 at tdi south the very late braking sold me on a bbk would have been impossible on the standard stoppers. Just reading things like the above article make one doubt the effectiveness. Still will feedback my thoughts once they are fitted
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post #12 of 53 (permalink) Old 4th April 2013, 21:30
 
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Quote:
Originally Posted by Syx View Post
Of course you'll get improved stopping power - you're utilising larger discs and pad areas than in the standard caliper.

Combined with the ability to dissipate heat more rapidly to prevent fade you've got an all around improvement.
The article fails to state the main assumption - tyre friction limits are exceeded by the stock setup already.
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post #13 of 53 (permalink) Old 4th April 2013, 21:31
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Quote:
Originally Posted by pulpmelon_r View Post
The article fails to state the main assumption - tyre friction limits are exceeded by the stock setup already.
For an article that is trying to base their justification on physics, it seems quite narrow minded.
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post #14 of 53 (permalink) Old 4th April 2013, 21:33
 
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Quote:
Originally Posted by stoney View Post
Without even reading the article I'm saying balls . they definitely stop you better And quicker and as touched on will do it repeatedly from well into triple figures
Balls indeed, assuming the abs works correctly and tyres are up to task bbk will decrease the stopping distance greatly. Somebody should link that guy this: Newton's laws of motion - Wikipedia, the free encyclopedia

Last edited by fnrr; 4th April 2013 at 21:36.
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post #15 of 53 (permalink) Old 4th April 2013, 21:34
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Quote:
Originally Posted by fnrr View Post
Balls indeed, assuming the abs works correctly and tyres are up to task bbk will increase the stopping distance greatly. Somebody should link that guy this: Newton's laws of motion - Wikipedia, the free encyclopedia
Edit required
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post #16 of 53 (permalink) Old 4th April 2013, 21:36
 
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Edit required
Haha, oops !
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post #17 of 53 (permalink) Old 4th April 2013, 21:40
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Quote:
Originally Posted by pulpmelon_r View Post
The article fails to state the main assumption - tyre friction limits are exceeded by the stock setup already.
Can they not be exceeded by OEM brakes?

If I press my brakes hard on OEM set-up Im pretty sure I can get ABS to kick in.

Quote:
Originally Posted by Syx View Post
For an article that is trying to base their justification on physics, it seems quite narrow minded.
Obviously this is not an exhaustive study, and is clearly titled as such, to spark debate...which it achieved here

I think the main point of the article was to perhaps get across the point that BBK on it's own is not a silver bullet for increased stopping power. So to hint to the reader that looking at your tyre choice as a priority over BBK...Its certainly what I took from it. Only then will I get the full benefit of my money spent, should I choose to buy a BBK.

Not once did the article state that a BBK is not effective, or not worth buying.
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post #18 of 53 (permalink) Old 4th April 2013, 21:43
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Considering the article title is a flat out lie, not sure I agree there!
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post #19 of 53 (permalink) Old 4th April 2013, 21:49
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Quote:
Originally Posted by Syx View Post
Considering the article title is a flat out lie, not sure I agree there!
Aggressively titling an article with challenging statements is one way to get attention to it...we see this sort of thing every day of our lives.

However it doesn't necessarily reflect the rest of the contents.
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post #20 of 53 (permalink) Old 4th April 2013, 21:51
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Quote:
Originally Posted by pReDaToR View Post
Aggressively titling an article with challenging statements is one way to get attention to it...we see this sort of thing every day of our lives.

However it doesn't necessarily reflect the rest of the contents.
Not sure of the point you're trying to make here.
The article starts with a lie and then tries to use selective application of physics to back up the lie.

I wouldn't say it was challenging or thought provoking - just misleading.
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