AMC 20 disc brake conversion questions.

[InfidelOffroad]

Corvette disk/disk master cylinder bolts up just like the original MC.

I read on another forum something about a certain year range. The guy went with one year range/sub model and his brake was too stiff. Any confirmation of which one to get for certain?

 

[Tinman22]

I think I'm going to opt out on the master swap.

I'll just loose the check ball and use a 2lb residual preassure fitting then I know what I've got.

It hard to find preassure specs on master cylinders

 

[InfidelOffroad]

Also the stock one is already in there. I know my lines will fit. Also no worries on clearing different odds and ends. Solid choice.

 

[IOPort51]

Also the stock one is already in there. I know my lines will fit. Also no worries on clearing different odds and ends. Solid choice.

Good luck with that, if you can find a check valve in either port you are doing better than I did. with the corvette valve There is a difference in boar sizes between the manual and the power with the manual having a smaller cylinder and, of course, the front and rear pistons are the same size. I have a manual MC on a power booster. this gives me the softer peddle of the two but more hydraulic advantage hence more stop. The wheel cylinder volume is of some concern, I don't think you want a larger boar in the back than in front and you need to confirm that the MC will have enough volume to pump the wheel cylinder. someone correct me if I am mistaken , I think the disk cylinders require more volume than the drums. the correct prop valve will give you the 2# residual pressure on both ends. I would suggest a prop valve with an adjustable rear so the bias will not lock the rear before the front. I do not have one of these adjustable valves and I think I just got lucky with the stopping balance.

good luck, can't wait to see how this all comes out.