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93 eg hatch brake conversion help

Discussion in 'Civic and del Sol - EG and EK' started by jimmie_dean, Nov 6, 2008.

  1. jimmie_dean

    jimmie_dean New Member

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    i have a 93 civic hatch and need help getting a list of ALL the parts i need, and what year/model car i can get them from, to swap my rear drum brakes for disc. (brackets, screws, hoses, etc....) i want to know exactly what i am getting myself into before i start this project.... :confused: if anyone can offer some help i would greatly appreciate it!
     
  2. dales94EJ1

    dales94EJ1 Speed Freak

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    I believe '94 was the first year Honda introduced 4 wheel disc brakes on the Civic. I'm also not sure but I think it was only in the EX with ABS. Most of the brake lines you currently have on your car will work fine. Just get a set of rear spindles, discs, and calipers off a '94 or '95 EX coupe with rear discs and mount them up to your car. Don't worry about the ABS sensor mounted to the spindle, you can remove and discard it. Run your old brake lines to the swaped calipers and it should work.
     
  3. xj0hnx

    xj0hnx I wanna be sedated VIP

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    You'll also need to get the e-brake cables from the a rear disc hatch. Mine was like $10 or $15 from Honda, might be more now. You can either do just the hubs like mentioned before, or get the whole trailing arms and swap those, I've always seemed to break less bolts doing it that way.
     
  4. iliv2xlr8

    iliv2xlr8 New Member

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    A rear disc conversion is really simple. If you can find a 92-95 Civic with disc then it will obviously swap in. They are a little hard to find. You can also use the alternative, 94-01 Integra. Remember that 94-01 Integra's have the exact same suspension as our EG's. Their brakes are an upgrade and work great for our light hatch's. I am in the proccess of collecting for this exact swap.
    I however am doing the front and the rear. Integra's have 262mm rotors and larger calipers. This is an upgrade from our 242mm rotors and smaller calipers. Their master cylinder and brake booster is also much larger then ours and will also bolt up with minimal modifications of the brake lines. I will give you a list of what you need and your options depending on how far you want to go.

    Rear Disc - Integra or Civic disc trailing arm assembly. This is the whole thing. Rotor, hub, bracket, caliper, and trailing arm. You can seperate the hubs but it is MUCH easier to get the trailing arm assembly and bolt it up. This also gives you a great chance to replace those old bushings. You will need the brake cable from a 92-95 Civic with rear disc. This can be found at any parts store. You will also need a 40/40 proportioning valve from a rear disc EG civic or 94-01 Integra RS. This valve is on the firewall and has the hard lines from the master cylinder running right to it. The rear disc valve will have 40/40 stamped in the side. Some will argue that this valve is not needed but it should be used to make things function as factory. Here is a picture of my GSR rear disc trailing arms.

    [​IMG]


    Font Disc - As I said before that Integra brakes are a definate upgrade. Like the rears they simply bolt up. You just have to get the spindle and brake assembly together. You can change bushings, balljoints and tie rod ends at this time if you like, but it's not necassary. Here is a picture of the assembly. This picture shows the upper contorl arms attatched also. You don't need this, it just came with the one I bought.


    [​IMG]
    [​IMG]


    Options - There are several options for a Master Cylinder and Brake Booster when doing this swap. If you are just doing the rear disc then I would recommend upgrading to a 15/16" MC from a 91 Civic EX Sedan. This MC simply bolts up with no modification whatsoever. This is a definate upgrade from your 13/16".
    If you decide to do the Integra fronts also then I would recommend an 1" Integra MC and booster. This is a little more involved but the results will be much better pedal feel and braking power. All 94-01 Integra's with ABS have a 1" MC. The MC and booster bolt right up to our cars. However, you must modify the lines coming from the proportioning valve. Because the ports on the MC's are placed differently then you must bend the lines to make them line up. This is not hard and is a minimal task for the performance gained. I would also recommend an MC from the 98-01 years in particular. These MC's have the same flare size and nut thread as our cars. This will keep you from needing an adapter. The 94-97 line and nut size is slightly different. This is a picture of my JDM ITR master cylinder and booster.

    [​IMG]


    Hope all this helps. It's always good to remember that 94-01 Integra suspension is the same as our 92-95 EG's. This is great if you have a DX with no sway bars, simply swap in the Integra LCA's front and rear. Baam, instant sway bars.
     
  5. dales94EJ1

    dales94EJ1 Speed Freak

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    Great post by iliv2xlr8. I just want to add, the ABS master cylender off a civic is very similar to that of the teggy. One of the flare fitting on the end of the brake lines is different though, as stated above. There is no conversion adapter that can be used on this. Truct me, I searched for 2 months staight and came up with nothing. Easiest way to fix the fitting problem is to use the original fitting from the ABS brake line. Do this by cutting the very tip off the standard brake line where the fitting will go. Remove the standard fitting and replace with the ABS fitting. Re-flare the end of the brake line and it's done. You'll need a double flare tool for this. I just had to do this for my car as I removed the ABS system to cut down on weight but I still wanted the larger master cylender. It works great and still looks OEM.
     
  6. iliv2xlr8

    iliv2xlr8 New Member

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    The difference in the nut for Integra's is a M10 and M8. These adapters can be bought at Napa. Also, you can distinguish between the different years of master cylinders for Integra's the 98-01 looks like the one I posted a picture of. The 94-97 looks like this:

    [​IMG]

    Again, they both can be a 1" bore, but the 98-01 doesn't need any fittings or reflairing.
     
  7. dales94EJ1

    dales94EJ1 Speed Freak

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    Yeah, I looked at the NAPA here and they didn't carry any adapters for this. Maybe it's different here. idk I was also told by a licensed mechanic who has 30 years experience that even if I were to find an adapter that they tend to leak. Something about how the brake lines tend to not seat properly in the adapter. Taking his word for it I opted to just replace the end. But it's good to know that the adapter does exist somewhere. lol Thanks :D
     
  8. jimmie_dean

    jimmie_dean New Member

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    thanks!

    Thank you guys so much for all the help. I really appreciate it, seriously. I had heard it was a pretty easy swap, but have spent a lot of time online looking for this info and never had any real luck... people were always telling me different stuff and no one was ever REALLY sure that what they were talling me was right. i guess i will be hitting up the junkyards big time this weekend... again, i appreciate the info! :thumbsup:
     
  9. iliv2xlr8

    iliv2xlr8 New Member

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