Re: Brake formulas
[Re: PHJ426]
#1836712
05/29/15 03:10 PM
05/29/15 03:10 PM
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Joined: Jan 2003
Posts: 28,067 Irving, TX
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Senior Management
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Irving, TX
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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
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Re: Brake formulas
[Re: PHJ426]
#1837330
05/30/15 02:55 PM
05/30/15 02:55 PM
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Joined: Nov 2005
Posts: 3,456 Fly Over States
PHJ426
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OP
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Joined: Nov 2005
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Fly Over States
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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!).
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Re: Brake formulas
[Re: PHJ426]
#1839009
06/01/15 06:49 PM
06/01/15 06:49 PM
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Joined: Jan 2003
Posts: 28,067 Irving, TX
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Senior Management
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Posts: 28,067
Irving, TX
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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
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Re: Brake formulas
[Re: moparx]
#1840248
06/03/15 02:35 AM
06/03/15 02:35 AM
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Joined: Dec 2010
Posts: 12,375 SoCal
MuuMuu101
I got lucky at Woodward!
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I got lucky at Woodward!
Joined: Dec 2010
Posts: 12,375
SoCal
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has member "muu muu" studied this ? [i just hadda ask ! ] 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.
Last edited by MuuMuu101; 06/03/15 02:35 AM.
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Re: Brake formulas
[Re: PHJ426]
#1840690
06/03/15 06:20 PM
06/03/15 06:20 PM
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Joined: Jan 2003
Posts: 28,067 Irving, TX
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Senior Management
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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
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