View Full Version : Question? --brake master cylinder bore
Run-em
05-09-2014, 08:36 PM
Does the larger bore on a brake master cylinder create more foot pressure feel at the pedal or make it easier?
chevynut
05-09-2014, 09:38 PM
Does the larger bore on a brake master cylinder create more foot pressure feel at the pedal or make it easier?
Larger mc bore creates less line pressure for a given amount of pedal force.
Maddog
05-10-2014, 05:23 PM
The"feel" is firmer with less pedal travel as the master bore size increases.
Rick_L
05-10-2014, 06:06 PM
To me, I don't think it's firmer. It just has less travel than a smaller bore m/c. But that's a matter of choosing the words to describe it.
Thing is, most modern cars use a combination with little travel, and most seem to like the combination of a lot of boost and short travel.
So...what they do is provide a lot of boost and then use a big bore m/c (which kills some of the boost) so that the pedal travel is short.
charliea
10-20-2014, 03:31 PM
smaller bore stops better bigger bore needs more pedal pressure to stop fast at least on my wildwood 4 puck set up 1"mcyl was very hard to stop 7/8 cured it
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