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Wilwood 340-13836 Uneven Reverse Swinging Dual Brake Master Cylinder And Clutch Pedal Assembly

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Price: $301.36

1 in stock

Sold As: 1 Pedal Assembly

Part Number: WIL34013836

MFG Number: 340-13836

California Prop 65 Warning: This item may cause cancer or reproductive harm. For more info visit p65warnings.ca.gov The above image is a representation of this item. Actual item may vary. If it's crucial to what you're working on, call the store at 951-737-RACE, and one of our sales reps will be happy to email you a current photograph.

Product Information:

This pedal assembly shares the same 3" x 7-1/2" bolt pattern as Tilton's 72-608 pedal assembly. The bias bar inside Wilwood's brake pedal arm is 3/8". It can be upgraded to 7/16" if you purchase Jamar or Tilton's brake bias balance bar if you're concerned about bending Wilwood's 3/8" bar.

This pedal assembly has the clutch arm from 340-13835 and the brake arm from 340-11299 to give you more leverage on the brakes.

Features:

Aluminum pedal arms

Dimpled foot pads for extra grip

5.11:1 Clutch Pedal ratio

6.15:1 Brake Pedal ratio

8-5/8 10-3/8

3/8"-24 balance bar

Lightweight aluminum frame

Four 5/16" smooth mounting holes on the sides

Four additional 1/4"-20 threaded holes on the top

Pedal pads can be mounted in 3 positions horizontally to make the pads closer or further apart from each other

Dimensions:

Mounting surface to bottom of clutch pedal: 10-1/2"

Pedal pivot to center of clutch pedal: 8-5/8"

Mounting surface to bottom of brake pedal: 12-1/8"

Pedal pivot to center of brake pedal: 10-3/8"

Pedal pivot to center of MC push rod: 1-11/16"

8.625 ÷ 1.6875 = 5.11:1 Ratio

10.375 ÷ 1.6875 = 6.15:1 Ratio

Pedal pad: 2-3/8" wide x 3" tall

Uses standard 2-1/4" vertical bolt pattern cylinders

Uses 5/16" pushrods for the master cylinders

Uses 5/16" bolts to secure master cylinders

When selecting master cylinders, you'll notice with a smaller bore, you get more pressure but less volume. With a larger bore you get less pressure but more volume. You need to make sure that you have enough volume to supply your brake calipers, but at the same time, enough pressure.

For the tandem brake master cylinder pedal, offroad trucks and buggies will have more bias to the rear brakes. 60% rear and 40% front is a common starting point, with a lot of offroad racing vehicles ending up at 30% front and 70% rear. Opposite of a street vehicle.

For the single clutch master cylinder pedal, here is an example of the math. Pushing the clutch pedal with 100 pounds of force, a 5.11:1 pedal ratio and a single 3/4" bore master cylinder:

Pedal force at master cylinder:

3/4" master cylinder area:

Line pressure:

Results

On the right hand side clevis you'll notice a tiny slotted screw with a jam nut. The tip of that screw has a spring loaded ball that clicks into a groove cut into one side of the 3/8" shaft. Every 360 degree revolution, the ball snaps into that groove. If you're using a dash mount bias adjuster knob that already has a detent click, then you can simply remove the slotted screw from that clevis.