I have been thinking about doing the same. I did not think there was room though. What is the pivot bushing? I have a push rod and the MC - what else is there?
What size MC bores did you use?
I thought I used the bushings from the factory but apparently didn't. I have bushings in there I got somewhere though.
I used a 5/8" front master and 3/4" rear. My piston areas are not the same as factory though. I have 4, 1.75" piston calipers front and rear. I do like smaller MC for better feel though. I also drilled a hole about .5" lower on the brake pedal arm for a better pedal ratio.
At least on an S2 the pushrod goes to a pivot then to the master. I used that same pushrod and made the pivot mount center to balance bar center the same as the factory distance.
To do again I would push the center point of the balance bar out further away from the frame as the remote adjuster mounted on the wheel side is very close to the lower control arm.
Second pic is the factory pivot sitting on the factory MC mount.
