The adjusters need to be set so there is a lot of drag compared to a passenger car.
A 1.125" MC had only 81% of the displacement of a 1.250" MC. A 1.250" MC has only 69% of the displacement of a 1.500" MC
A 1.250" MC displaces 23% more and a 1.500" MC displaces 44% more than the next smaller example.
"Small" changes in bore size result in ever larger changes in displacement as the cylinder increase in size. This results in directly proportional longer pedal travel.
Combined with the slack in the brake adjustment, this results in low pedal height.
Brake effort will be affected inversely as the cylinder size is changed, brake effectiveness will not be affected as long as there is enough travel to apply the brake force necessary to stop.
Mac :{)
1962 K10 short step side, much modified for rally
1969 T50 fire truck, almost nos, needs a few things
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