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1 inch master cylinder

Discussion in 'HYBRID -> ED-EF / DA' started by 2phatt, Mar 5, 2004.

  1. 2phatt

    2phatt Member

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    I have upgraded my 90 dx hatch with ex front brakes and integra trailing
    arms in the rear, 40/40 proportional valve and I just purchased a 90 to
    93 integra booster and master off of Ebay.
    http://cgi.ebay.com/ebaymotors/ws/eBayISAP...MEBWN%3AIT&rd=1
    I received them today and was suprised to find that the master is a 1" not a 15/16"
    and the booster is huge. I have to use the booster because it mates to the master
    and the master won't mate to my stock booster. Opposite bolt locations.
    Has anyone here done this swap?
    Will the booster fit against the firewall?
    Will I have to remove my b16a intake to get it in?

    Thanks for the help

    Ralph
     
  2. brian11to1

    brian11to1 Senior Member

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    You could always try to[​IMG] before you post.

    No you dont have to take out the motor. yesit bolt to the firewall. You may want to invest in some new trailing arm bushings.
     
  3. 2phatt

    2phatt Member

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    Thanks for the response.
    I have energy suspension/prothane throughout my car.
    Front and back.
    I couldn't find any info on the booster in the archives, just the
    post on the ITR 1" master.
    I truly wasn't planning on taking out the motor, just the intake
    if it would make it easier.
    Thanks again.
     
  4. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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    You won't have to remove anything from the engine to make it all fit. Cylinder size- the 15/16 should be just fine. That's what I'm running in my Civic, and that car is quite a bit heavier than yours. If you want to find a 15/16 master cylinder that will bolt up to your stock booster unit, try looking for a 90-91 Civic EX master. You won't have to swap out the booster unit with that master cylinder.
     
  5. 2phatt

    2phatt Member

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    Got the new booster in.
    FYI.
    To put the booster I just put in, you must remove the Intake off of
    a B16a motor to put the booster in.
    In fact, You must remove the intake to remove the small stock dx booster.
    I couldn't get the pushrod out of the firewall or back in without taking the intake
    off.
    I have Hasport mounts and that may explain the lack of clearance, I believe
    they move the motor back a little.
    I had to bend brake lines a little and move a section of harness to get it in
    but it really looks sweet. It fills the entire indentation in the firewall and that 1"
    master has a resevoir the size of a swimming pool.
    Email for pics.
    ralphs@comcast.net

    Ralph
     
  6. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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    Nice. I'm glad you got it in- it just sucks that you had to take apart some of the engine. I guess the EF engine bay is just that much smaller than the EG...

    Post your pictures up in the gallery (size them down first ). That way everyone can see them without having to email you.
     
  7. GSRCRXsi

    GSRCRXsi Super Moderator Moderator VIP

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    yes i would like to see, i was under the impression that CRX's couldnt use the ITR master, but if you did it i would like to see some pics and a basic writeup of what all had to be done. :)
     
  8. 2phatt

    2phatt Member

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    I have posted some pics in my gallery #947.
    It was a pretty straight forward swap.
    The nasty Honda gods placed the upper booster
    nuts in barbwire, or so it seemed.
    I had to loosen and move the intake aside to get out the
    old dx booster and put the new Teg monster in.
    The 1" master had 2 different size ports.
    The front is 10mm and the back is 12mm
    Both of my dx lines had 10mm fittings.
    I had to cut the back line fitting off and put on a larger 12mm
    fitting and reflare the tube.
    Thankfully the 12mm fitting was in the master when it came.
    Other than that it was tomato soup.
    I have now upgraded every bit of the brakes to Teg or EX.
    I've got a 23mm Teg Sway for the front and a 15mm Teg
    Sway for the rear to do this weekend.

    Ralph
     
  9. GSRCRXsi

    GSRCRXsi Super Moderator Moderator VIP

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    when you say intake, do you mean intake manifold?

    and is this the ITR booster or a 93 booster? will the ITR booster/master bolt on?

    and ive been hearing about 4th gen EX parts? ive never seen a 4th gen EX, whats special about them? whats different about them brakes/suspension wise from all the other 4th gen civic/crx's? sorry if im jacking your thread, im just a little confused about the information being presented, and i just want to get it cleared up for myself and potentially others that may be confused as well :)
     
  10. 2phatt

    2phatt Member

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    Yes, Intake manifold.
    This is a booster and master from a 90 -93 Integra. I believe a 4 door LS.

    Advanced Auto lists the same Master Cyl. part, Cardone #112544
    for both the 93LS, 93GSR and the 97 Type R.
    Advanced also lists all three as having the same booster part #.

    I used the front knuckles and hubs from a 91EX because they have
    10.3" rotors and calipers. The EX is a four door, hence the larger
    brake system. A direct bolt on to the EF9 front end.

    Ralph
     
  11. Projectzc

    Projectzc Senior Member

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    is it nessasary to replace the proportioning valve when switching from rear drums to disks?
     
  12. 2phatt

    2phatt Member

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    Not absolutely neccessary but I would and did.
    I used the 4040 proportional valve from a teg.
    I got mine with the teg trailing arms as part of the package.
    It only took about 30 min to switch the proportional.

    Ralph
     
  13. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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    The 90-91 Civic EX was the 4 door Civic with the larger brakes and the D16A6 engine. Other sedans didn't have the larger brakes- only the EX did. All other 88-91 Civics had the smaller 9.5 inch rotors up front and the drums in the back (90-91 Si had rear discs). You can basically think of the 90-91 EX as basically the same as the Si at the time- just with 4 doors and a real trunk.

    It has the 10.3 inch rotors up front, 9.5 inches in the back, largest master cylinder available at the time (15/16) with the same bolt pattern as all the other masters (unlike the Integra), along with the D16A6 engine.
     
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