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Tilton Racing 72-608 Reverse Swinging Dual Brake Master Cylinder And Clutch Pedal Assembly

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Price: $327.25

3 in stock

Sold As: 1 Pedal Assembly

Part Number: TEE72608

MFG Number: 72-608

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:

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
Fifteen adjustable pedal ratios (4.91:1 to 6.14:1) enable the brake and clutch pedals 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
Four 5/16" smooth mounting holes on the sides
Two additional 1/4"-20 threaded holes on the top edge near where the master cylinders mount
Pedal pad brackets can be mounted in 3 positions vertically with 7° of forward or 7° of backward tilt
Pedal pads can be mounted in 4 positions vertically to change pedal ratio

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 6.14:1 pedal ratio and a single 3/4" bore master cylinder:

Pedal force at master cylinder:
100 lbs x 6.14 ratio = 614 lbs

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

Line pressure:
614 lbs ÷ 0.4418 in² ≈ 1388 PSI

Results

Pedal ratios for this pedal assembly were calculated based on 1.63" from the arm's pivot to the center of master cylinder's push rod. The pedal pad brackets have 4 holes. Sticking with Tilton's requirement of 2 bolts being used that are not adjacent to each other, you end up with 6 vertical positions (3 with short edge down and 3 with long edge down) of the pedal pad bracket and 4 positions of the pedal pad itself (2 with short edge down and 2 with long edge down) which gives you 24 positions that the pedal could be in and roughly 15 different pedal ratios.

Pivot to center of pad divided by pivot to center of master cylinder push rod equals the pedal ratio:

Tilton Racing swinging pedal assembly pedal bracket and pedal pad close up view

Pedal bracket short edge down and short pad edge down

Position A

Position B

Pedal bracket short edge down and long pad edge down

Position A

Position B

Pedal bracket long edge down and short pad edge down

Position A

Position B

Pedal bracket long edge down and long pad edge down

Position A

Position B