Wilwood Tandem Master Cylinders, 1 Inch Bore

I've built a '32 Ford using a brake/clutch pedal combination supplied by the chassis builder (Brookville Roadster). I mounted a 1" bore manual MC under the floor and installed disc brakes front and rear. My problem is that the pedal effort is extreme. Turns out that the brake pedal is only 4:1 ratio. I now realize that my brake system is probably the worst possible combination in terms of pedal effort. It's OK for moderate braking, but I'm not sure I can press the pedal hard enough to make a panic stop. (I estimate it'd take 200 lbs of pedal force.) There's absolutely no room for a power brake MC. I'm considering replacing the MC with a 7/8" bore. That'd reduce the pedal effort by about 25% but increase the pedal travel by that much. I seem to have plenty of pedal travel available, so I don't think that'd be a problem. (I've got 5" to the floor, but I'm only using about 1" - it's a nice, firm pedal.) Can you see any problems with making this switch?

by bigmurf

• 10 years ago

Is this the one for a 1967 Pontiac GTO???

by Budman

• 11 years ago

1/2-20 to -3AN adapter Do you offer a 1/2-20 to -3AN adapter for the Wilwood master cylinders? I hate stacking adapters if I don't have to.

by phendrickson58

• 11 years ago

Will this master cyl work on a 57 chevy? I want to buy your tri-five chevy front disc brake kit with 11" rotors & 69-77 calipers. Also would you recommend a stock prop valve of a adjustable unit. I'm running non-power brakes & stock drums out back. Its a 4-wheel drum #non-power# car. Thank you. Matthew

by Matt70

• 13 years ago

I need to rebuild mine, do you carry the kit for this model?

by Novaguy

• 13 years ago

"depth correction plug" mentioned in video for use with a booster.... do they come in different length's is another name for them I cant find any I am installing a master cylinder and booster in a 1953 Studebaker, I have found that the booster rod is not coming in contact with the master cylinder and is about 1 1/8" to 1 1/4" short... I saw the depth correction plug mentioned in your video and was wondering if these are available in different width's and length's... I have not been able to find anything like this anywhere, and was wondering if possibly under a different name? Or am I doomed to making one myself? Thanks for your input

by Motorhead

• 13 years ago

will this work for a dual piston caliber front disk & rear drums?

by

• 14 years ago

I,m building a Model A pickup, GM metric disc on front & rear, 5 to 1 pedal ratio, 7" single diaphram booster. I have a Wilwood master cylinder with a 1&1/8" bore that I would like to use. Will I have enough pressure or do I need a smaller bore? Joe

by Jalopiejoe

• 15 years ago