28-10-13, 06:09 PM
Forgive my ignorance, but I don't understand how less pressure need be applied?
If the master cylinder is pushing the same volume of fluid into a larger diameter chamber, then the pressure on the surface of the piston is lower isn't it?
(The principle I'm thinking of here is pushing a drawing pin into a wall. The force on the flat end and the sharp end are equal, but the pressure on the sharp end is a lot higher meaning it goes into the wall as opposed to the flat end going into your thumb!)
So to compensate (to get that pressure back up), you need to push more fluid in by pushing the pedal further.
Or is that the entire point? So with the increased travel you effectively get finer control of the existing braking power rather than an increase?
If the master cylinder is pushing the same volume of fluid into a larger diameter chamber, then the pressure on the surface of the piston is lower isn't it?
(The principle I'm thinking of here is pushing a drawing pin into a wall. The force on the flat end and the sharp end are equal, but the pressure on the sharp end is a lot higher meaning it goes into the wall as opposed to the flat end going into your thumb!)
So to compensate (to get that pressure back up), you need to push more fluid in by pushing the pedal further.
Or is that the entire point? So with the increased travel you effectively get finer control of the existing braking power rather than an increase?
Broken, bruised, forgotten, sore,
too fucked up to care any more.
too fucked up to care any more.