Tilton Racing 72-603 Floor Mount Dual Brake Master Cylinder, Clutch, And Throttle Pedal Assembly

Tilton's 600 series pedal assemblies use traditional fixed mount master cylinders and have a brake balance bar that provides excellent performance at a competitive price.

Features:
• Uses standard 2-1/4" vertical bolt pattern master cylinders
• Uses 5/16"-24 studs to secure master cylinders
• The clutch pedal heim joint and brake pedal balance bar all use 5/16"-24 push rod master cylinders
• Forged aluminum pedal arms with adjustable (vertical & horizontal) foot pads and grip tape
• Four adjustable pedal ratios (5.29:1, 5.44:1, 5.61:1, 5.75:1) enable the brake pedal to be tuned to driver preference
• Large diameter 7/16"-20 balance bar provides maximum rigidity. PTFE coated aluminum clevises for increased durability and reduced friction
• Pedal pivots feature wave washers to reduce lateral pedal movement and oil impregnated bronze bushings decrease friction
• Lightweight aluminum frame features guide ramps to reduce balance bar tipping, decreasing friction and improving brake repeatability
• Adjustable clutch pedal stop prevents clutch over stroking
• Spring loaded adjustable throttle pedal with two stops. One prevents the throttle cable from over stroking. The other adjusts the pedal's resting position
• Five 1/4" holes on the throttle pedal
• Throttle can be used in front or rear engine applications with a pushing or pulling throttle cable setup or it can be used in a drive by wire setup. Throttle linkage is sold separately and listed below

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 5.29:1 pedal ratio and a single 3/4" bore master cylinder:

Pedal force at master cylinder:
100 lbs x 5.29 ratio = 529 lbs

3/4" master cylinder area:
A = π r²
A = 3.14159 x 0.375 x 0.375
A = 0.4418 in²

Line pressure:
529 lbs ÷ 0.4418 in² ≈ 1197 PSI

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