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Old 04-15-2014, 08:22 PM   #1
rwade
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Brake peddle ratio?

I've been speaking via e-mails with wilwood on the issue of running a booster (vacuum) or using their aluminum master cylinder in a manual set up. They want to know what the "brake pedal ratio" is. I feel like I should know this but I don't. How do I figure out what it is?

Thanks, Wade
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Old 04-16-2014, 02:45 PM   #2
66 C10 383
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Re: Brake peddle ratio?

It's the relationship between the pivot of the brake pedal to where the rod goes to the master cylinder divided by the overall length of the brake pedal.

http://www.piratejack.net/index.php?...d=14&Itemid=21

http://www.mpbrakes.com/techtalk/how...ng-pedal-ratio
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Old 04-16-2014, 05:03 PM   #3
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Re: Brake peddle ratio?

I gotcha! Thank u for taking your time to help. Much appreciated!

Wade
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Old 04-16-2014, 09:37 PM   #4
CHRIS67GMC
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Re: Brake peddle ratio?

you can change the ratio on these trucks bye drilling a new hole. There is no need for a booster.
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Old 04-16-2014, 10:40 PM   #5
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Re: Brake peddle ratio?

I've spoken to wilwood and they are saying it should have a firm pedal as is without a booster. I know Keith (n2billet) had built several without ever using a booster. By my measurements the ratio should be 6.75 to 1. Thanks for the responses.

Wade
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Old 04-18-2014, 09:45 AM   #6
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Re: Brake peddle ratio?

Are you going to run a booster?
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Old 04-18-2014, 10:07 AM   #7
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Re: Brake peddle ratio?

No sir. I'm going to at least have first hand experience (lol).

Wade
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