Quote:
Originally Posted by boostat4500
I wasn't considering steel braided to be rubber. But I guess on the inside it is. I just meant there's nowhere for line bulging to occur. I've got a new booster and corvette master on now. It's a little better but still not great. I tried plugging each port one at a time both before and after the parts swap. Both times the pedal is hard with one port plugged. Same whether front or rear. Also, the pedal is slow to return after depressed. Is that a proportioning valve problem?
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Rear discs require a master cylinder made for 4 wheel dics. Adding a mc with a larger piston size (1.1/8" bore) can work also. Did your mc come off a 4w disc vehicle or did you use the Corvette one from a drum rear brake? I bet that it is the wrong one.
There are others things it could be. I would check the bore to see if its 1.1/8 on back unless you know it is. If it is then i will be something else