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palle7688's Avatar
 
Join Date: Feb 2004
Location: Copenhagen, Denmark
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How does brake Proportioning Valve work?

How does this thing work?
I do know it for brake balance, but how?????
What's inside???

Pic from Tiltonracing.com
Is it just a ajustable orifice?
or is it like a relief valve?
or does it lock out excessive pressure?

How does the '84-'88 Carrera 33(55) bar valve work?
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Old 04-19-2004, 12:55 PM
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The latest issue of Grassroots Motorsport (240Z and 350Z on the cover) has an in-depth article on the whole brake prportioning idea. It's in depth and almost too informative.

edit: sorry, didn't realize you were in EU, maybe you don't have access to the magazine. Hopefully someone can scan it and post it.
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Old 04-19-2004, 01:16 PM
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Thanks dave, but you are right, I'm over the pond.
It would be nice if somebody could do that, please!!!!!!!!
It's challenges my technical curiousity.
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Old 04-19-2004, 01:25 PM
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Here's what the inside looks like, as pressure builds it works against the spring cutting offf flow to the corresponding set of calipers.
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Old 04-19-2004, 01:30 PM
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Bill, nice pic.
Anybody have an engineers drawing or schematics of whats inside.
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Old 04-20-2004, 09:56 AM
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Old 04-20-2004, 09:56 AM
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