Boricuanology

iTrader: (1)

I wil like to know if all 92-95 Civic share the same front models as the SI/EX. For example are the brakes from a DX/VX the same as the top of the line SI/EX. I will like to know since im parting out my 93 SI, to build my 92 DX hatch and will like to know whether I should leave the front brakes intact or replace them with the SI ones. Also will like to know if the 4 door sedan from the same years, 92-95, has bigger brakes than the coupe/hatchback. I got a 95 4 door EX for my wife and it came with all around disc brakes with ABS and the caliper seems to be much bigger than the ones on my SI. especially the rear one. Are the EX 4 door brakes bigger than my SI hatch? or are they bigger cause it has ABS brakes in all 4 corners?


Modified by Boricuanology at 7:41 PM 11/30/2006

john666

ex and si brakes (rotors) are the same and are also larger then dx/vx brakes (rotors)

BlueIntegraBoy

iTrader: (5)

The 92-93 Si has 9.5" front rotors like your DX. The rear disks from the Si are the same as the EX sedan, 9.4". The EX sedan front brakes are larger than your Si and DX.

The 94-95 Si or Si with ABS have 10.25" front rotors. Any EX from that year also has 10.25" front rotors. The ABS models have better calipers because of a larger piston (same calipers as the Integra).

Boricuanology

iTrader: (1)

"The 92-93 Si has 9.5" front rotors like your DX. The rear disks from the Si are the same as the EX sedan, 9.4". The EX sedan front brakes are larger than your Si and DX.
The 94-95 Si or Si with ABS have 10.25" front rotors. Any EX from that year also has 10.25" front rotors. The ABS models have better calipers because of a larger piston (same calipers as the Integra)".

Damm! I feel like taking the brakes out of the 95 EX w/abs and put those on my 92 hatch. I knew there were bigger, front and rear.

Boricuanology

iTrader: (1)

So the 92-93 SI have the same brakes on the front as my 92 DX? because if thats the case Im only changing the rear disc on my 92 hatch from my 93 SI hatch.

Also are the brakes from 94-95 bigger because of the ABS sistem? or the 94-95 civic witout ABS is the same as 92-95 si.

BlueIntegraBoy

iTrader: (5)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Boricuanology &raquo;</TD></TR><TR><TD CLASS="quote">So the 92-93 SI have the same brakes on the front as my 92 DX? because if thats the case Im only changing the rear disc on my 92 hatch from my 93 SI hatch.

Also are the brakes from 94-95 bigger because of the ABS sistem? or the 94-95 civic witout ABS is the same as 92-95 si.</TD></TR></TABLE>

Honda decided to put EX brakes on the Si's for 94-95

Boricuanology

iTrader: (1)

So I need to change the whole thing in order to have bigger brakes front and rear by this I mean Disc and caliper. Or just changing the disc will do. So I shouldn't bother changing the front brakes from my 92 DX for the front brakes out of my 93 SI? Also Do I need the proportion valve out of my 93 SI as well? Thanks for helping guys, I want to take out whatever I need out of my SI before I get rid off it.

LowTEC-Derbo

93-95 Civic coupes EX non abs (as well as 94-95 ABS) has the 10.25" Rotors also.


[b]Differences between ABS and NONABS are the Caliper sizes/Pad sizes NOT the Rotor size. (At least EX nonabs vs. EX ABS)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Boricuanology &raquo;</TD></TR><TR><TD CLASS="quote">So I need to change the whole thing in order to have bigger brakes front and rear by this I mean Disc and caliper. Or just changing the disc will do. So I shouldn't bother changing the front brakes from my 92 DX for the front brakes out of my 93 SI? Also Do I need the proportion valve out of my 93 SI as well? Thanks for helping guys, I want to take out whatever I need out of my SI before I get rid off it.</TD></TR></TABLE>


Get the mastercylinder your Si if you have a nonABS one. You also need the prop valve. I would advise changing your front brakes too anyways.

Boricuanology

iTrader: (1)

thanks crazyxzer0 I will do that.

LowTEC-Derbo

sure it would probably be a good ideal to swap the front LCA too as DX doesnt have sway bar holes right?

realis9

how hard is it to swap the 94-95 Si or Si with ABS that have 10.25" front rotors to a 93 civic dx. All i need is just the rotors and the calipers of the ex and ever thingh will bolt up?

BlueIntegraBoy

iTrader: (5)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by realis9 &raquo;</TD></TR><TR><TD CLASS="quote">how hard is it to swap the 94-95 Si or Si with ABS that have 10.25" front rotors to a 93 civic dx. All i need is just the rotors and the calipers of the ex and ever thingh will bolt up? </TD></TR></TABLE>

You need the whole knuckle. Might as well get Integra calipers while you are at it (whole knuckle from an Integra).

realis9

the stock Dx brake lines will bolt to the integra/ex calipers right?

realis9

http://i22.photobucket.com/alb...9.jpg

that is all i need right. I think the one in the pic is from an integra.

BlueIntegraBoy

iTrader: (5)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by realis9 &raquo;</TD></TR><TR><TD CLASS="quote">http://i22.photobucket.com/alb...9.jpg

that is all i need right. I think the one in the pic is from an integra. </TD></TR></TABLE>

Correct

Targa250R

This is very complicated. Prepare to be confused:

First off, do not use the collective term "Si/EX brakes" when referring to pre-'96 models, because the EH3 Si 3dr model, EJ1 EX 2dr, and EH9 EX 4dr can each have a unique brake system or they can all share the same exact brake system depending on whether each particular car was equipped with ABS or not.

Let's get some facts down. The following models of the 5th-generation Civic were sold in the US:

- CX 3dr ('92-95)
- VX 3dr ('92-95)
- DX 2dr ('93-95), 3dr/4dr ('92-95)
- Si 3dr ('92-95)
- Si-ABS 3dr ('94)
- LX 4dr ('92-95)
- LX-ABS 4dr ('94-95)
- EX 2dr ('93-95)
- EX-S 2dr ('93)
- EX-ABS 2dr ('94-95), 4dr ('92-95)

Things to note: ABS was offered on EH3 Si models in 1994 only, so your '93 Si does not have ABS. ABS was optional on '94-95 EX 2dr and LX 4dr models. ABS was standard on all '92-95 EX 4drs. All rear discs (on equipped models) are the same: 9.5" solid rotors with 7CLP13S calipers.

All '92-95 Civics with ABS have 4-wheel discs and share the same brake system, which is the same as '94-01 Integra (except RS and Type-R): 10.3" vented rotors with 17CL14VN calipers up front, and 9.5" rear rotors with 7CLP13S calipers in the rear. The ABS master cylinder is 15/16" with one 10mm and one 12mm fitting, and bolts to the booster at 8 and 2 o'clock.

CX, VX, DX, Si (non-ABS), and LX (non-ABS) models share the same front brakes. They are 9.5" vented rotors with the ubiquitous small unmarked calipers. The Si (non-ABS) model had rear discs (same 9.5" solid rotors and 7CLP13S calipers as ABS models), while the other models listed in this paragraph had 7.9" rear drums. Also, the models listed in this paragraph use a 13/16" master cylinder with 2 10mm fittings, which bolts to the booster at 10 and 4 o'clock.

As for the EX models, the non-ABS 2dr models (including '93 EX-S) had 10.3" vented front rotors but used 16CL14VN calipers, and had the 7.9" rear drums. The front rotors are the same as ABS models, but the 16CL14VN calipers (which are also found on the del Sol VTEC) had slightly smaller pistons than the 17CL14VNs found on ABS models and non-ITR Integras. The non-ABS EX 2dr models used a 7/8" master cylinder with 2 10mm fittings, which bolted to the booster at 10 and 4 o'clock.

Now that I have outlined all four possible brake configurations found on '92-95 Civics, let me answer your questions.

Your '93 Si hatchback has 9.5" front brakes, same as your '92 DX. Swapping the fronts would obviously be pointless. You'll probably want to swap the rear discs onto the DX though. A rear disc swap will include the rear hub assembles (you could swap the complete trailing arms with the hubs attached, or if the TAs are bent, you could unbolt the hubs from the TAs and just swap hubs) with rotors and loaded calipers, the soft lines (calipers have different hydraulic fittings vs. wheel cylinders), and the e-brake cables (different fittings). You'll also want to swap over the Si proportioning valve with the discs to have the proper F:R brake balance.

As for your 4dr EX, yes, it has larger front rotors and calipers, since it is obviously an ABS model. The rear brakes are the same as those on the Si hatch (with the addition of wheel speed sensors for the ABS function).

I know it's a lot of information, but I have to clearly define everything because brakes are a big subject of confusion. Hope that helps.

Wrong wrong wrong!!!! Don't propagate misinformation when you don't know!

No, that's wrong man. I know you're usually good with brakes, and this is a very common misconception, so I'll give you a break.

The Si-ABS model was only offered in '94, and had the ABS brake system with the big front rotors and calipers. However, the '94-95 Si (non-ABS) model had the same 9.5" fronts as the '92-93 Si model. Nothing changed other than the brief appearance of optional ABS in '94.

Take the Si proportioning valve out just in case, but you will only use it if you're going to use the Si/DX fronts with the Si rear discs, as that is the proper configuration to use that particular valve with. If you decide to upgrade the fronts on the DX to 10.3" rotors with 17CL14VN (Civic ABS or Integra non-ITR) calipers and use the rear discs, you'll need a proportioning valve from a '90-93 non-ABS Integra or '94-97 Integra RS (which was non-ABS).

His Si master cylinder is the same dinky 13/16" one as the DX has.

As BlueIntegraBoy mentioned, you can't use 10.3" rotors on knuckles from a 9.5" rotor car, because the caliper won't reach the bolt holes on the knuckle when fit over the rotor. To use 10.3" front rotors, you'll need the knuckles from an EX, a Civic ABS model, or a '94-01 Integra non-ITR. (Keep in mind the caliper piston difference between ABS and non-ABS EXes.)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">the stock Dx brake lines will bolt to the integra/ex calipers right? </TD></TR></TABLE>
In the front, yes.

If you're doing a rear disc swap in addition, you'll need the rear soft lines and e-brake cables specifically for discs, because the fittings are different for drums vs. discs.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">http://i22.photobucket.com/alb...9.jpg

that is all i need right. I think the one in the pic is from an integra. </TD></TR></TABLE>
Yes. If you decide to upsize to the 17CL14VN (Integra) front calipers, you will need to upsize to a 15/16" master cylinder to maintain the same pedal travel. Your stock 13/16" MC cannot move enough fluid to push the pistons in those big calipers, and if you don't increase the MC size you will have a very long pedal travel (and resultant crappy pedal feel).

You cannot use the ABS/Integra 15/16" MC on your DX unless you re-flare one of your brake lines with a 12mm fitting and use the Integra booster. Alternately, you could pick up a new MC from a '90-91 Civic EX 4dr, which is 15/16" and will bolt up directly to your stock lines and booster with no modifications.

Also make sure to get the correct proportioning valve for your intended setup.

I think that covers just about everything in this thread.

realis9

thanks very informative.

realis9

so my last question. Should i swap my 93 civic dx front brakes to 92 Civic Si front brakes for better braking? Is it a good good upgrade?

realis9

is the stopping distance going to be noticeable different i'm only swapping the front the back will be drums still?

Targa250R

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by realis9 &raquo;</TD></TR><TR><TD CLASS="quote">so my last question. Should i swap my 93 civic dx front brakes to 92 Civic Si front brakes for better braking? Is it a good good upgrade?</TD></TR></TABLE>
No. They are the same setup. Your '93 DX already has those front brakes on it.