Line Pressure Comparison

The table below shows the range of bore sizes available and shows the % step up from the previous size and line pressure based on 50 lb pedal load and a 5 to 1 pedal ratio.

 

Master Cylinder Size mm/in.
14.00/
0.551"
15.00/
0.591"
15.875/
0.625"
16.80/
0.661"
17.78/
0.70"
19.05/
0.75"
20.638/
0.8125"
22.225/
0.875"
23.813/
0.9375"
25.4/
1.00"
Area sq in.
0.2386
0.2739
0.3068
0.3436
0.3848
0.4418
0.5185
0.6013
0.6903
0.7854
% step up from previous size
N/A
14.8%
12.0%
12.0%
12.0%
14.8%
17.4%
16.0%
14.8%
13.8%
Pedal Load lb.
50
50
50
50
50
50
50
50
50
50
Pedal Ratio
5:1
5:1
5:1
5:1
5:1
5:1
5:1
5:1
5:1
5:1
Line Pressure p.s.i. (single cylinder)
1047.76
912.72
814.87
727.61
649.61
565.88
482.17
415.75
362.17
318.31