Suspension & Brakes Theory, alignment, spring rates....

Can I use this proportioning valve?

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Old Jun 9, 2010 | 09:38 PM
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Default Can I use this proportioning valve?



I noticed that Honda's prop valves have both the front and rear running to it. Seems odd since the rear is all that should be controlled unless Honda wants to control the front as well.

What's the big deal? I'm really wanting to know what Honda does differently in this area.

P.S.- This may be going onto a 2000 DC2.
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Old Jun 10, 2010 | 06:34 AM
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Default Re: Can I use this proportioning valve?

When you press the brake pedal, fluid need to be routed to all four corners. If it flows to the rear more than it should, then they lock up before the front does it's job and vice-versa. IMO, Stick with what the Honda engineers designed.
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Old Jun 10, 2010 | 02:41 PM
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Default Re: Can I use this proportioning valve?

Originally Posted by Trey
When you press the brake pedal, fluid need to be routed to all four corners. If it flows to the rear more than it should, then they lock up before the front does it's job and vice-versa. IMO, Stick with what the Honda engineers designed.
No i'm wanting to replace all the original equipment under the hood, and go straight from the MC to the front calipers, then straight from the MC to this adjustable prop valve and then from there to the rear calipers.

I finally found that Honda uses what I think is called a diagonal flow (or something like that) braking system. Perhaps i'm missing something. I just want simple. I'm tired of looking at a jungle of brake lines under my hood.
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Old Jun 10, 2010 | 07:26 PM
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Default Re: Can I use this proportioning valve?

Have you seen the brake line tuck thread? Put the prop valve inside the car. You will only then see the two lines coming off the MC. Pretty clean.
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Old Jun 10, 2010 | 07:55 PM
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Default Re: Can I use this proportioning valve?

Originally Posted by Trey
Have you seen the brake line tuck thread? Put the prop valve inside the car. You will only then see the two lines coming off the MC. Pretty clean.
Well, I ask myself whether I really need a ball of brake lines when all I really need is a few simple lines with a smaller, simpler, more attractive proportioning valve.

Yeah, the Honda designers were pretty sharp, but the biggest question is whether I really need such an exhaustive setup (OEM Honda). If something more simpler works just as well, then perhaps I should go that route. Lastly, and most importantly, the best overall question is whether the proposed setup will equal the performance of an OEM Honda proportioning valve?

I'm not questioning the quality of the Honda engineers' solution to the problem. I'm just questioning whether the same can be done with a simpler proportioning valve setup versus their proportioning valve setup.
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Old Jun 10, 2010 | 10:02 PM
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Default Re: Can I use this proportioning valve?

oem is diagonal split, after market is front/rear split. Look for the documentation of the prop valve on wilwood's site. I believe you will need 2 adjustable prop valves.
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Old Jun 10, 2010 | 10:04 PM
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Default Re: Can I use this proportioning valve?

I wasn't clear. A single after market prop valve is meant for cars with front/rear split. Some cars have diagonal split, some cars have front/rear. For cars with diagonal split, you need 2 after market prop valves to control the front/rear brake bias.
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Old Jun 10, 2010 | 10:14 PM
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Default Re: Can I use this proportioning valve?

Originally Posted by ronald55555
I wasn't clear. A single after market prop valve is meant for cars with front/rear split. Some cars have diagonal split, some cars have front/rear. For cars with diagonal split, you need 2 after market prop valves to control the front/rear brake bias.
Cool. Thanks man.
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