brake booster and master cylinder ?

[beran24]

on my project car that im puttin the b18 in, ive always had bad brakes with not much pedal. ive put all new break parts and bled them but still never fixed the problem. So that leads me to the brake booster. I was wondering if the 2 door and 4 door brakes boosters can be swapped? I know the master cylinder on my 4 door is bigger so i'm not sure.

[Bglad420]

86-7 are paired and 88-9 are paired. What year is the MC from? If its from 88-9 its bigger

[beran24]

86-7 are paired and 88-9 are paired. What year is the MC from? If its from 88-9 its bigger

both cars are 89

[Bglad420]

It could be because the dx to lxi/exi the Exi/Lxi have bigger front brakes than the DX's

[beran24]

It could be because the dx to lxi/exi the Exi/Lxi have bigger front brakes than the DX's

true i forgot about that, i should still be able to swap the booster and cylinder tho because i thought all the cars were the same in the front so the firewall must be the same.

[2drSE-i]

I believe (could be mistaken) that the booster and MC from the carbed cars are smaller, as they had smaller front brakes. They will swap though.

[beran24]

I believe (could be mistaken) that the booster and MC from the carbed cars are smaller, as they had smaller front brakes. They will swap though.

well theres one way for me to find out. once i start pullin parts off the exi im gonna try to swap it in cuz idk what else could be wrong in the brakes. and i figure it will be much easyer to put in with no engine settin in the car lol.

[MessyHonda]

yeah put in the fuel injected one

[hammer3rd]

try replceing the rubber lines from the body to the spindle. When they get old they will swell when you push on the pedal. Try a aftermarket set of stainless braided lines, helped mine.

[beran24]

yeah the rubber over the lines are gettin in bad shape so ill have to replace them. and i think im gonna swap the bigger brakes from the exi to. What all is different does it just have larger rotors or are the calipers different as well?

[import racer]

Rotors, calipers, and the spindles need to be changed man.