I got gsr brakes for all four, trailer arm and all......I installed it and everything works, just that my brake pedal is soft(I have to step on it all most all the way for it to catch) even after bleeding it. I did some research and I thought I needed a master brake cylinder and brake booster...so I got 1 from a 95 integra from the junk yard and when I installed it, one of the holes in the master cylinder for my stock brake lines to connect to is bigger? There are 2 threaded holes on the master cylinder for my brake lines..... 1 fit perfect the other don't....help a tuner

 

okay man i see you didn't do your homework before attempting the integra brake swap. I do admire your get it done without prior knowlege additude though.

You are correct when you said your pedal feels soft, because your moving more fluid to your calipers which are larger ergo the soft pedal feel. What I did was purchase a 91 civic sedan master cylinder. The 91 sedans had gsr brakes and a larger 15/16ths master cylinder. It just so happens it bolts right up to the stock EG brake booster and fits the stock brake lines perfectly. Its a bolt on affair. You can get a re-maned M/C for like $80 at autozone and use your old resivior. I do not advise using an integra brake booster as you will notice your brakes lock up really fast. The stock civic booster works great with a larger M/C. I'll tell you right now that i can purposely lock of my front tires with 205/50/15 kuhmo asx with my integra brakes. So you see how a larger booster will give you problems unless you plan on running super grippy tires all the time then it might be right up your alley.

 

or u could retain the stock master cylinder and buy a 4040 prop valve

 

That 4040 prop valve won't solve his mushy pedal feel.