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looking for some specific info

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Old Oct 8, 2010 | 06:11 AM
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Default looking for some specific info

so i'm working on a project at work, and the short of it is i'm trying to design a braking system using some similar friction material that is used for GTR track pads.

what i'm looking for is caliper/brake system info such as piston size, line pressure, number of pistons, etc...does anyone have any good ideas where to find something like this? most of my searches have only turned up such info as rotor size, general info like that.

thanks
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Old Oct 8, 2010 | 06:30 AM
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BRB I have nismo's phone number around here somewhere...

the gtr website is like nagtroc.com or something. I would start there
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Old Oct 8, 2010 | 06:33 AM
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You must increase your maths, and then do them to derive the infos you want.

Seriously though. Line pressure can be derived from the following:

Area of a circle = Pi * r^2 (r is radius)
Force = Pressure * Area

-Size of the master cylinder
-Size of slave cylinder
-How much force someone puts on the brake pedal with their foot. This adds a bit of subjectivity. I guess the manufacturers have a magic number (twice what a strong man can leg press?), and then use 1.5 as MAX pressure they want to see in the line.
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Old Oct 8, 2010 | 06:35 AM
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Originally Posted by Incubus,Oct 8 2010, 10:33 AM
You must increase your maths, and then do them to derive the infos you want.

Seriously though. Line pressure can be derived from the following:

Area of a circle = Pi * r^2 (r is radius)
Force = Pressure * Area

-Size of the master cylinder
-Size of slave cylinder
-How much force someone puts on the brake pedal with their foot. This adds a bit of subjectivity. I guess the manufacturers have a magic number (twice what a strong man can leg press?), and then use 1.5 as MAX pressure they want to see in the line.


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Old Oct 8, 2010 | 06:44 AM
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Originally Posted by sparrow,Oct 8 2010, 06:35 AM


Way to be a jack ass- He was only trying to help.

To Op: I would suggest you get in touch with an oem brake system maker/manufacture/vendor. If you have the inputs from your system, they should be able to size it.

Otherwise, you really are going to need to know some "maths" and do some real engineering work. Basic hydraulics aren't too difficult.
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Old Oct 8, 2010 | 07:02 AM
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Originally Posted by zachismisitok,Oct 8 2010, 10:44 AM
Way to be a jack ass- He was only trying to help.
Ummmm I know this. I was not trying to imply that he was wrong. His understanding of the material is far greater than mine. I was referring to myself with the picture but thanx for name calling.
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Old Oct 8, 2010 | 10:05 AM
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Originally Posted by sparrow,Oct 8 2010, 07:02 AM
Ummmm I know this. I was not trying to imply that he was wrong. His understanding of the material is far greater than mine. I was referring to myself with the picture but thanx for name calling.
ahhh, I completely missed the point, blame cathodic protection equations- sry broski.
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Old Oct 8, 2010 | 10:13 AM
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Originally Posted by zachismisitok,Oct 8 2010, 02:05 PM
ahhh, I completely missed the point, blame cathodic protection equations- sry broski.
its all good, its not the first time ive been called a J/A while using gifs check my sig lol
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Old Oct 8, 2010 | 04:24 PM
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Originally Posted by Incubus,Oct 8 2010, 10:33 AM
You must increase your maths, and then do them to derive the infos you want.

Seriously though. Line pressure can be derived from the following:

Area of a circle = Pi * r^2 (r is radius)
Force = Pressure * Area

-Size of the master cylinder
-Size of slave cylinder
-How much force someone puts on the brake pedal with their foot. This adds a bit of subjectivity. I guess the manufacturers have a magic number (twice what a strong man can leg press?), and then use 1.5 as MAX pressure they want to see in the line.
Depends on the material being used, application, etc. So it's going to vary, but your guess is as good as mine.
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