which master are u using

[comp-spec]

Originally Posted by awr68

I have the Wilwood 6 piston (front) and 4 piston (rear) set and was told to use a 1 1/8" bore for non-power, so I bought a late model S10 master, hope it works!!

awr68
I was told to use a smaller bore (7/8), who told u to use a 1 1/8 ??

[4mm]

Use a smaller bore for lighter pedal feel. I have a 7/8 on six piston wilwood fronts and the pedal is still very hard to push.

[comp-spec]

Originally Posted by 4MuscleMachines

Use a smaller bore for lighter pedal feel. I have a 7/8 on six piston wilwood fronts and the pedal is still very hard to push.

Thats what I was told too.

[awr68]

Originally Posted by comp-spec

awr68
I was told to use a smaller bore (7/8), who told u to use a 1 1/8 ??

It was either Wilwood or Precision...pretty sure it was Wilwood though....
Does the stroke have anything to do with it??? (Allan leave that one alone!!)

[comp-spec]

Ya there diff pedal ratios
I talked to wilwood and they said smaller bore?
Im going to check psi at the caliper.

[Datsbad]

I have hydroboost and the new 6 piston baers front and back with a 1-1/8 bore . My pedal feels perfect !

[comp-spec]

Originally Posted by Datsbad

I have hydroboost and the new 6 piston baers front and back with a 1-1/8 bore . My pedal feels perfect !

I have to run a manual brake set up (space is tight) trying to get it done before powertour.

[Datsbad]

try a smaler bore then try a larger one . shouldnt be much work . but i assume you have it under the dash ? then that might be a pain in the a$$ to keep switching.

try calling Paul at Hydratech , I bet he would help .
If you want a larger one try a 78-81 vette, thats a 1-1/8

[comp-spec]

Luckly its not to bad to change. I've change it a few times try diff masters it seems the smaller bore the better