[Tigers] brake hydraulics

[Owain Lloyd]

after i installed the Dale A rear disc conversion, i experienced a
strange situation which at first i thought was just that i needed to
bleed more air out.  i ignored it since i was installing new front
brakes.  now i've fitted the front brakes and bled the whole system
again but the issue is still present.

the problem is that when you first press the brake pedal, it sinks to
the floor but if you let it up and press it again right away, the
pressure is there and the brakes work fine.  if you leave it a short
while and press the pedal again, the same thing happens.  note that
the car is not moving so its not related to knock back where the
pistons are pushed back in.

topping the list of possible causes in my mind is that the master
cylinder is not pushing enough fluid in one stroke to fill the caliper
pistons.  would that make sense?  if so, instead of going to a 1" MC,
i'm wondering if just a longer stroke MC would be sufficient.  i may
able to fiddle with the pedal ratio a little depending on where the MC
pushrod is mounted.