Prop Valves

The lever type proportioning valve CP3550-13 provides the driver with 7 distinct settings from which to produce the most suitable braking ratio.

General Information:
Installation
To obtain the best performance using this valves, the brake balance should be biased towards the rear so that with the valve piped in to the rear line and set in position 7  where virtually no reductions occurs, the balance is as much to the rear as will ever be needed. Moving the control lever to a lower setting will progressively reduce the rear line pressure giving more bias to the front, for use when more grip is available.

Nominal Ratio of 0.325.
Weight = 180g approx.

Note:
This proportioning valves is suitable for use with any brake fluid that conforms to DOT 3, DOT 4 or DOT 5.1 standards, but best all round performance will be achieved with AP Racing 600 brake fluid.

Warning
Due to internal adjustments set by AP Racing, do not strip these assemblies. Do NOT attempt any modification of these valves. Strictly for competition use only.

Customer drawing

The screw type proportioning valve CP3550-14 offers infinite adjustment within the limits of normal brake operation. With the cap screwed fully in no reduction in output pressure occurs, with the cap screwed fully out, output pressure is reduced to approximately 1/3rd of input pressure.

General Information:

Installation
To obtain the best performance using this valves, the brake balance should be biased towards the rear so that with the valve piped in to the rear line and screw cap right in (clockwise) where virtually no reductions occurs, the balance is as much to the rear as will ever be needed. Screwing the cap outwards to a lower setting will progressively reduce the rear line pressure giving more bias to the front, for use when more grip is available.

Nominal Ratio of 0.325.
Weight = 180g approx.

Note:
This proportioning valves is suitable for use with any brake fluid that conforms to DOT 3, DOT 4 or DOT 5.1 standards, but best all round performance will be achieved with AP Racing 600 brake fluid.

Warning
Due to internal adjustments set by AP Racing, do not strip these assemblies. Do NOT attempt any modification of these valves. Strictly for competition use only.

Customer drawing

The twin bore lever type proportioning valve CP4550-1 is a 2 in and 2 out valve. This valve enables the user to utilise original fluid pipe runs on Grp N or similar applications where a tandem (dual circuit) master cylinder is specified. This proportioning valve provides the driver with 7 distinct settings from which to select the most suitable braking ratio.

General Information:
Installation
To obtain the best performance using this valves, the brake balance should be biased towards the rear so that with the valve piped in to the rear line and set in position 7  where virtually no reductions occurs, the balance is as much to the rear as will ever be needed. Moving the control lever to a lower setting will progressively reduce the rear line pressure giving more bias to the front, for use when more grip is available.

Note:-
This proportioning valves is suitable for use with any brake fluid that conforms to DOT 3, DOT 4 or DOT 5.1 standards, but best all round performance will be achieved with AP Racing 600 brake fluid.

Warning
Due to internal adjustments set by AP Racing, do not strip these assemblies. Do NOT attempt any modification of these valves. Strictly for competition use only.

Customer drawing

Tilton lever-type proportioning valves enable adjustable brake line pressure reduction to a particular wheel or wheels. They can also be used effectively with single or dual master cylinder systems, providing better front-to-rear brake balance under both light and heavy braking.

Tilton’s lever-type proportioning valve provides a visual reference for seven distinct positions:

Seven notched pre-determined pressure positions
Wide clearly labeled handle
Precision-machined billet aluminum body
Metric or Imperial inlet port (either 10mm or AN-3)

Tilton lever-type proportioning valves enable adjustable brake line pressure reduction to a particular wheel or wheels. They can also be used effectively with single or dual master cylinder systems, providing better front-to-rear brake balance under both light and heavy braking.

Tilton’s lever-type proportioning valve provides a visual reference for seven distinct positions:

Seven notched pre-determined pressure positions
Wide clearly labeled handle
Precision-machined billet aluminum body
Metric or Imperial inlet port (either 10mm or AN-3)

Tilton screw-type proportioning valves enable adjustable brake line pressure reduction to a particular wheel or wheels. They can also be used effectively with single or dual master cylinder systems, providing better front-to-rear brake balance under both light and heavy braking.

Tilton’s screw-type proportioning valve allows for fine adjustments for brake pressure reduction:

Knurled adjustment knob for sure grip
Fine adjustment set at any point for max control
Precision-machined billet aluminum body
Metric or Imperiale inlet port (either 10mm or AN-3)

Tilton screw-type proportioning valves enable adjustable brake line pressure reduction to a particular wheel or wheels. They can also be used effectively with single or dual master cylinder systems, providing better front-to-rear brake balance under both light and heavy braking.

Tilton’s screw-type proportioning valve allows for fine adjustments for brake pressure reduction:

Knurled adjustment knob for sure grip
Fine adjustment set at any point for max control
Precision-machined billet aluminum body
Metric or Imperial inlet port (either 10mm or AN-3)