Okay, I'm totally uneducated on all my master cylinder options. My stock 1/16th MC really isn't cutting it these days, I'm tired of the pedal travel and I'm looking at upgrading to some nice calipers (wilwood maybe) sometime soon.

92 Civic, assuming I'm willing to fab my own hard lines to install any MC/booster combo, what is my best option?

 

itr 1" master cylinder is the best OEM option. there are a few aftermarket ones but not worth it IMO. I would get the 1" one or the 15/16" one from most of the other integra or 91 civics. You have a 13/16" one btw

 

Get the 15/16 from 91 Civic, best bet because you don't have to bend/reflare brake lines. Direct bolt in. I did that along with BBK's and disc conversion, and it works great.

 

too add on this,

15/16 off a 91 Civic SEDAN EX model. It should be a factory 15/16 MC that bolts directly to your existing booster. Im using this setup on my Integra brakes all around acommodated by the 40/40 prop valve off a NON ABS 90-93 Integra.

 

1" booster and mc install how-to is posted somewhere on here (by me).
I went this route, because I wanted a larger booster to match the mc. It installed easily and I cut nothing.