2000 LX non-ABS master cyl upgrade

[FusilliJerry82]

So I've been preparing for a 1.6l to 1.8l brake upgrade for a while now, got new rotors, calipers and pads. So I go to get a master out of a 1.8 non abs and I come to find the damn thing has 4 ports instead of my 3. WTF!? Any write-up I've seen doesn't mention this at all. I've also looked into a 929 master/booster but that's only 2 ports, which I would mind t-ing off of less than blocking off a port of the 1.8 master. What is the proper way of doing the 1.8 swap? Replacing the proportioning valve too which I assume has an extra incoming port? I really don't want to. Any other known upgrades for a 15/16" or 1" master? I'm finding myself back at square one and its pissing me off.

Thanks.

 

[tweety2300]

Do you have an auto and get one for a manual? You can always put a bolt in and plug it

 

[FusilliJerry82]

Unless I'm missing something, the only difference between an auto and stick master is the reservoir.

I really would rather not block off a port; to me that feels really ramshackle.

 

[FusilliJerry82]

I'd be fine with replacing the proportioning valve too but the 1.8 valve has 1 less port and the master has 1 more. ???! Can someone give me an idea of how 1.8s are plumbed?

 

[talltim]

that sounds correct

 

[FusilliJerry82]

What sounds correct?

I really need to know where the lines are routed in a 1.8.

 

[tweety2300]

There has to be an extra port in the master for the manuals to take fluid to the clutch master cylinder

 

[FusilliJerry82]

Very infrequently are the actual hydraulics of the clutch and brakes part of the same system, and the Protege is no exception. A shared reservoir is different.

It doesn't make much sense to design a system where a failure in the clutch hydraulics causes partial or full brake failure.