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Monday, February 14, 2011

Proportioning Valves Tech Manual

Wilwood Proportioning Valves: The new generation of adjustable proportioning valves combines the latest refinements in manufacturing processes and materials to deliver precise pressure metering and unyielding strength from a compact and lightweight forged billet design Pressure adjustments range from 100-1000 PSI and provide for a maximum decrease of 57% in line pressure, the most of any available valve. This adjustment lets you fine tune the front to rear braking balance by proportionally decreasing the rear (or in some cases the front) brake line pressure. Can also be used to adjust individual front wheel braking in dirt track applications. Valves weigh only 6.1 ounces (lever), 5.2 ounces (knob), and have two .25” side mounting holes spaced 1.00” apart. Standard in and out ports are 1/8-27 NPT.
Knob Style Proportioning Valve: Adjuster knob with fine thread tuning provides precise pressure adjustment. Used for street rods, pro series racing and off road vehicles.
Lever Style Proportioning Valve: This proportioning valve has six preset adjustment points actuated by moving a lever allowing racers to adjust brake bias during a race without having to “look” where the knob position is. The lever “clicks” into the six positions for positive adjustment and the bright red lever is easily seen in a busy racing cockpit. Lever can be rotated 180° for easy installation and mounting location. Ideal for oval track, road race, and off road racing where car and racing conditions change throughout the race.

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