My ED/EF Cable to Hydro Clutch Conversion

[markismaximus]

A Cable to Hydraulic clutch conversion kit for the EF Civic and CRX RHD Chassis.

Now available at www.efclutchconversions.com or email efclutchconversions@gmail.com

What's included in the Kit:

* 2 x CNC'd 6061 Aluminium Spacers
* Complete Pedal Assembly (assembled with new OEM components)
* All fastener Hardware for installation
* New OEM CMC Gasket
* Installation Instructions

Pedal Assembly





CNC'd Spacers





Hardware



Installation

[Jasemas]

Whoa this is awesome stuff

[mocchi]

shieeetttt so good.

[mooshie]

This is awesome!

I just said **** it to hydro and put all Type R internals into a 92-93 Integra YS1 box...

[Renaissance_x]

This is awesome!

I just said **** it to hydro and put all Type R internals into a 92-93 Integra YS1 box...

This must have cost a fortune.

[mooshie]

Not really. No more than a rebuilt box which I would do if I was swapping in a hydro setup and cheaper because there are no more additional parts required. I picked up the internals and casing for what ended up being about $400 and a new final drive for $120. Add in the new bearings, synchros, seals etc and a couple of required parts and it's a good option. I was just lucky to come across parts as they are not easy to find.

Little bit more detail-http://www.ozhonda.com/forum/showthread.php?180433-B-gearbox-LSD-questions

[markismaximus]

I was just lucky to come across parts as they are not easy to find.

This is basically the crux of that post. You were in the right place at the right time. We all know late 80s Honda parts are going to become pretty scarce in the next few years. Especially parts that aren't f'ed. How often do you go the the wreckers looking for some parts only to find they're in worse condition than the ones on your car

[grifty]

So you plan on using stock pedals right?

How will they work as the cable type is a pull movement vs a hydro which is a push movement?

[markismaximus]

Whoa this is awesome stuff

shieeetttt so good.

This is awesome!

I just said **** it to hydro and put all Type R internals into a 92-93 Integra YS1 box...

Thanks gents, now into the detail

-------------------------------------------------------

The Long Story and development

I'm in the process of an ED3 Sedan Build, and for the old Honda enthusiasts amongst us, you will know the EF'ED chassis only came equipped with cable actuated clutches, as does the DA Teg.

This poses a problem for anyone wanting to swap a B-series (such as myself) or any hydro gearbox into this body. With good condition cable gearboxes becoming rather difficult to find these days I started looking into what was available "off the shelf".

There are a range of options from adapters you fit onto your gear box, to mounts which modify the existing pedal to actuate an internal clutch master cylinder (CMC), to the cut and shut method from a hydro firewall.

All of which I was less than impressed with.

Some current methods of conversion:

Lever arm utilising clutch cable.



Internally mounted CMC



Aftermarket pedal with bracket welded into chassis



Modified cable clutch pedal bracket



So after some brainstorming I came up with my solution, a 2 part sandwich adapter which mounts onto the firewall to create flat mounting faces for CMC and clutch pedal. I plan on mounting an S2k CMC as the reservoir is combined so easier to install and looks cleaner. Like so:



First step was taking a plaster impression of the firewall.



The plaster mould is 3d scanned to produce a mesh STL file.



Then the fun really began. Reverse engineering a surface that has no definitive form is relatively time consuming.





The end result, within 0.5mm tolerance of the original scan.



Once the surface is finished I imported into another software package and started work on the spacers.

Firewall side



Interior side



More to come

[~Sp33~]

So you plan on using stock pedals right?

In comes Mr assumptions.

Looking good lambross

[grifty]

So which pedals are going to be used?

[markismaximus]

you will have to wait and see