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Brake formulas #1834809
05/26/15 08:30 PM
05/26/15 08:30 PM
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PHJ426 Offline OP
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Re: Brake formulas [Re: PHJ426] #1834893
05/26/15 10:37 PM
05/26/15 10:37 PM
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If you can't dazzle em with diamonds..
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cool


Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
Re: Brake formulas [Re: PHJ426] #1835641
05/27/15 11:39 PM
05/27/15 11:39 PM
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I like all the formulas on one easy to access page too.

If there is a reason to do something to the car(to make it handle better) it should be proven via math first, not because your a catfish and something new and shiny catches your eye.

Re: Brake formulas [Re: PHJ426] #1835876
05/28/15 11:18 AM
05/28/15 11:18 AM
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cool


Reality check, that half the population is smarter then 50% of the people and it's a constantly contested fact.
Re: Brake formulas [Re: PHJ426] #1836376
05/29/15 01:02 AM
05/29/15 01:02 AM
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Shiny always follows the math. Think of all the engineers with the slide rules, they figured out how to put man on the moon.

There are some ideas that are discovered by accidents and fiddling, like K&N filters with the motorcycle that fell over on it's side.

In reality math and physics define our cars and everything on our planet. Haven't met any gearhead that can defy those laws. Energy cannot be created or destroyed only change forms.....

Now how people stub their toe and the light goes off and what inspires someone to pursue a product that is the human genius, it can never defy the math and physics.....after that its all marketing.

Re: Brake formulas [Re: PHJ426] #1836712
05/29/15 03:10 PM
05/29/15 03:10 PM
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Neat stuff but it still relies on information you likely don't have. It's much like my brake math spreadsheet in that regards. In my case I used a magic 1 for friction. In their stuff you need to know the actual coefficient of friction between the pads and rotors as well as between the tires and the ground.


We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind.
- Stu Harmon
Re: Brake formulas [Re: PHJ426] #1837330
05/30/15 02:55 PM
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From the internet on EBC brake pads

Its all about the mu, where is my little cursive micro Mu symbol
Anyway we live in the information age no longer is it the Chicago way, "I know a guy that knows a guy..."

These values change with temperature obviously more searching is required, but information like this is hardly a secret.


Ultimax/Blackstuff: no information found on use with Lotus. They are cheap, have the lowest temperature capacity and surely won't stand up to track use. Nominal friction coefficient 0.46
Green: Not recommended for track use but comparable with OEM pads for both stopping power and wear. Nominal friction coefficient 0.55
Redstuff: low dust, high temp pad. Designed for large vehicles or high performance vehicles. Average friction coefficient 0.5
Yellow: New compound getting a good write-up for track use, possible alternative to Pagids at half the price. Cold friction 0.5 ; 550C(1000F)-0.31 ; 800C(1440F)-0.21 ; Average friction coefficient 0.5
Bluestuff NDX: NDX is for street use. Non-NXD is an endurance race pad (not street legal). Cold friction 0.75 ; 550C(1000F)-0.45 ; 800C(1440F)-0.42
Orangestuff: New pad. Track use only (not street legal). Designed to slow down car and not stop it. Cold friction 0.5 ; 550C(1000F)-0.6 ; 800C(1440F)-0.63


One of the [comments] about EBC from forum from a user (Simon S) that has used a lot of brake pads:
EBC *anything* are just [censored] cheap crap, Greens are IMHO dangerous for anything other than light road use, Reds are not much better, and don't work well when pushed hard (as in overheat and break up), Yellows are rock hard and just do not offer the same level of retardation and pedal feel the OEM pads to when push come to shove... they also crumble when really pushed (and I had them actually catch fire!).

Re: Brake formulas [Re: PHJ426] #1839009
06/01/15 06:49 PM
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Tire to ground Mu?

Corner loading?


We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind.
- Stu Harmon
Re: Brake formulas [Re: PHJ426] #1839538
06/02/15 08:51 AM
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Tire to ground Mu Google has

Now when your talking Corner loading and/or weight transfer during braking,

We get more math:

http://www.racing-car-technology.com.au/wttransworksheet.htm

http://www.racing-car-technology.com.au/index.htm

http://www.racing-car-technology.com.au/mistakessetup.htm

Re: Brake formulas [Re: PHJ426] #1840098
06/02/15 10:45 PM
06/02/15 10:45 PM
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has member "muu muu" studied this ? [i just hadda ask ! grin]
beer

Re: Brake formulas [Re: moparx] #1840248
06/03/15 02:35 AM
06/03/15 02:35 AM
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Originally Posted By moparx
has member "muu muu" studied this ? [i just hadda ask ! grin]
beer


No, unfortunately there's been to much "friction" between activities in my schedule that I haven't had a chance to "stop" and thoroughly go through this thread. biggrin

Last edited by MuuMuu101; 06/03/15 02:35 AM.
Re: Brake formulas [Re: PHJ426] #1840690
06/03/15 06:20 PM
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Originally Posted By PHJ426
Tire to ground Mu Google has

Now when your talking Corner loading and/or weight transfer during braking,

We get more math:

http://www.racing-car-technology.com.au/wttransworksheet.htm

http://www.racing-car-technology.com.au/index.htm

http://www.racing-car-technology.com.au/mistakessetup.htm



I'm very familiar with the math you're sharing. However, Google can't give you the tire to ground Mu. At best it can give you generalizations.
What is the Mu of my tires on the parking lot outside out shop right now?
You don't know the tires. You don't know the parking lot surface. You don't know the age of the materials involved, their condition, and the chemicals that have been spilled on them.


The math can get you a rough idea for a street car but the real world can be really far off.


We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind.
- Stu Harmon
Re: Brake formulas [Re: PHJ426] #1841342
06/04/15 12:45 PM
06/04/15 12:45 PM
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Math gets you close after that we need to tighten up th "nut behind the wheel."







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