quote:Originally posted by Horace Cope:
Anyone any good at working out hyd ratios....
the slave has a 1” bore which gives it (pies are square) 0.787 “” area
the master cylinder with 0.70” bore have 0.386”” area
stroking its 1.225” would spurt (area X stroke) 0.473””” volume to the slave
and this should stroke the slave (volume/area) 0.601”
the master cylinder with a 0.75” bore would have 0.443”” area
stroking its 1.125 would spurt 0.498””” volume
and this should stroke the slave (volume/area) 0.633”
the BIG thing is getting the pedal to stroke the MC its entire stroke.
Do you have the peddle effort reduction linkage? Assuming so,
The initial push rod length of 2.93” is to set the initial ANGLE of the link.
IF too shallow, the pedal will lock in the up position
Too steep and even though the pedal is easy to push, the MC stroke will be reduced
Thus ALWAYS measure slave stroke