I have a 49 - 3100 and thinking about putting disc brakes on the front with a power booster. To get the same result at a lower cost has anyone re-sleeved the master cylinder narrower to get power brake effort? If so what is involved and how big a job is it.
Realize that if you did that you'd need more travel on the pedal for the same amount of stop at the wheels.
Chrysler did the same thing only they left the master cylinder alone and changed the pivot point on the brake pedal arm. Almost felt like power brakes but as Bill said; the pedal had to move further.
Brake MC Bore Yes this works very well ~ It only takes a tiny bit of difference to give major improvement and the pedal travel is minimal when you do it correctly . VW did this in 1965 , an old Hot Rod trick was to use the '65/'66 brake master cylinder on your older Beetle , it gave you power brakes but also made it easy to lock them up when driving in the snow . On Beetles, there was no perceptable increase in brake pedal travel as the change in diameter was only a couple of MM . Can't you just buy a smaller bore master cylinder cheaper than re - sleeving your old one ? .
