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Adjustable brake proportioning valve for AutoX

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Old Aug 16, 2003 | 05:47 AM
  #1  
PupaScoopa's Avatar
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From: Greenville, SC, USA
Default Adjustable brake proportioning valve for AutoX

I've been eyeballing the adjustable "inline" valve from racerwholesale lately. Has anyone used adjustable brake bias control for autocross?

Thanks for any input!
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Old Aug 16, 2003 | 05:58 AM
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Default Re: Adjustable brake proportioning valve for AutoX (PupaScoopa)

If you drive a Honda you will need to reroute your brake lines to use a single valve. Otherwise you will need two valves too work with Honda's diagonal brake system as they are delivered from the factory.

If you have not altered you brake system you are better off just using different combinations of front and rear pads to change the bias. Unless you have a suspension disproportion, the stock proportion valve should be close to where you need to be.

Brakes beyound stock systems, generally are not a defining factor for Solo II events at most competition levels. If you need just one more thing to distract your attention from driving, purchase a valve and go at it.





Modified by DB1-R81 at 7:21 AM 8/16/2003
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Old Aug 16, 2003 | 01:26 PM
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Default Re: Adjustable brake proportioning valve for AutoX (DB1-R81)

I'm not looking forward to redoing the entire brake line system on my integra, but it must be done [relocated racing fuel cell + a major decrease in the amount of weight in the rear/mid section of the vehicle + an overall weight reduction of 500+ lbs + removal of the ABS system = custom brake line routing and proportioning valve required]. Plan to use the lever click type adjuster for not having fear of an adjustment **** turning accidentally and messing up the brake balance.
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Old Aug 29, 2003 | 10:37 AM
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Default Re: Adjustable brake proportioning valve for AutoX (DB1-R81)

I was thinking about putting them inline with the front brake lines to decrease force to the fronts, maybe 10 to 15% less. The dive is horrible...
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Old Aug 29, 2003 | 03:26 PM
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Default Re: Adjustable brake proportioning valve for AutoX (PupaScoopa)

Depending on how bad the bias problem is, you could probably fix it with different brake compounds front versus rear.

If you're trying to fix dive though, that's a spring rate problem (they're too soft). A car that stops forcefully due to having good brakes shifts its weight to the front wheels regardless of how the brakes are biased.
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