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1st Generation Civic 4x100 Conversion Plus Brake Upgrade  
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PostPosted: Sun Aug 22, 2010 7:36 pm    Post subject: 1st Generation Civic 4x100 Conversion Plus Brake Upgrade Reply with quote

1st Generation Civic 4x100 Conversion Plus Brake Upgrade


Download Parts List attachment at Bottom of this post!

The rear spindle size was determined by the 2nd generation civic bearings. The inside had to be sleeved and the outside had to be machined smaller. The drum backing plate had to be re-drilled to for two bolts. (two matched two didn't) The drum has to be spaced out an additional 3/16th, You have to make/modify front brake hose bracket. On the front the front seal bolts have to be ground down. (If not they will hit the hub upon rotation)










4 Wheel Disc setup


Justin by 78si
The only hub I use are 80'-83' civic, they have the same outer diameter as the 1200/CVCC, and it's easier to find (you also need the outer cv joint for the swap). I don't know if the later hubs will fit.. Vx's did not come out till 92' it was the hf from 88'-91' you can use the rotor and caliper from any civic (88'- and up) as long as you have the wagon knuckles or caliper adapters

Blake, the wagon knuckle has the larger caliper spacing, so you can bolt on newer calipers the 1200 and the CVCC hatch both have the same size knuckle...

Here's the info on the brake swap:
Okay for the disc conversion for the front you'll need:

1: 80'-83' civic 1300 front hubs and outboard joints
2: inner bearing and seal for the matching hub from the above car (I've found they make two different bearing sizes for the 80'-83' civic (the outer size of the bearing is the same, it's just the inner size that's different) so just make sure you get the right one for your hub.
3:I would suggest to replace the outer bearing for the hub (it will be a replacement size for your factory knuckle)
4: you can use your original knuckle and go with a non-vented rotor from the same donor car (80'-83') but this limits you to using your original calipers (you can't change your calipers due to the spacing for the caliper mount) any newer Honda has a larger mounting area, so if you want to go with a larger set-up you'll need either a wagon front knuckle (they have the larger caliper spacing) and brake lines or get a set of brackets made to bolt to the original hub (I've made these up and they run $100.00 a pair) with this set-up you can easily run the vented/x-drilled rotors like I have, and not to mention the bigger calipers (I'm using the 92'-95' civic calipers and the pad surface is 4 times as much as the stock ones)

5: rear's are a simple as re-drilling the drums and putting them back on the car! I've now done a rear disc swap, I'm using factory parts from a 84'-87' Prelude SI (caliper and brackets). The hubs are from the 92'-95' civic DX and rotors from the 92'-95' Civic SI.

6: For the rear disc you will also need either a custom set of brake lines or a pre-made set (I found Nuspeed 92'-95' Civic SI Kit) works great. the custom set runs around $240.00...

More info on the rear disc parts..
I use the hub from a 88' or newer Civic (can be from a rear drum, they have the same inner bearing diameter as the 1200) I basically machine the outer area so I can press in a 1200 outer bearing. The spacer is the same diameter as the factory one that is on the 1200 drum (It's used to space out the hub so the caliper lines up in the center of the disc. The disc is from a 92' or newer SI, the caliper and bracket and mounting plate are from the 84'-87' Prelude SI, you can use newer calipers (they are all the same size, except for the mounting, so you must use the prelude caliper bracket) The E brake cables are also for the same year caliper, You can route the cables around the gas tank, under the exhaust heat shield and drill two holes for it to come through the floor, when you get the donor brakes also grab the e brake handle and cable mounts, the handle will bolt up where your original handle went (rear bolt, you must drill a new hole for the front and nut and bolt it together) I relocated the seat bolt brackets back (I basically removed the 4 bolts, moved the assy. backwards so that the two front holes lined up where the original rears were and then drilled two new rear holes and nut and bolted it together) In doing this it gives you enough room to bring the new cables through the floor and also somewhere to bolt down the cable stay bracket (the first one I did, I went thru the actual seat belt bracket and used it as the stay for the cables, but I found they bonded) so I went with the new route mentioned above..
Source Discuss 1200


4x100 conversion on 77 wagon


Here's the info from Justin 78si
Blake, the wagon knuckle has the larger caliper spacing, so you can bolt on newer calipers the 1200 and the CVCC hatch both have the same size knuckle...

Here's the info on the brake swap:
Okay for the disc conversion for the front you'll need:

1: 80'-83' civic 1300 front hubs and outboard joints
2: inner bearing and seal for the matching hub from the above car (I've found they make two different bearing sizes for the 80'-83' Civic (the outer size of the bearing is the same, it's just the inner size that's different) so just make sure you get the right one for your hub.
3:I would suggest to replace the outer bearing for the hub (it will be a replacement size for your factory knuckle)
4: you can use your original knuckle and go with a non-vented rotor from the same donor car(80'-83')but this limits you to using your original calipers (you can't change your calipers due to the spacing for the caliper mount) any newer Honda has a larger mounting area, so if you want to go with a larger set-up you'll need either a wagon front knuckle (they have the larger caliper spacing) and brake lines or get a set of brackets made to bolt to the original hub (I've made these up and they run $100.00 a pair) with this set-up you can easily run the vented/x-drilled rotors like I have, and not to mention the bigger calipers (I'm using the 92'-95' civic calipers and the pad surface is 4 times as much as the stock ones)

5: rear's are a simple as re-drilling the drums and putting them back on the car! I've now done a rear disc swap, I'm using factory parts from a 84'-87' Prelude Si (caliper and brackets). the hubs are from the 92'-95' Civic DX and rotors from the 92'-95' Civic SI.

6: For the rear disc you will also need either a custom set of brake lines or a pre-made set (I found Nuspeed 92'-95' Civic Si Kit) works great. the custom set runs around $240.00...

More info on the rear disc parts..
I use the hub from a 88' or newer Civic (can be from a rear drum, they have the same inner bearing diameter as the 1200)I basically machine the outer area so i can press in a 1200 outer bearing. The spacer is the same diameter as the factory one that is on the 1200 drum (It's used to space out the hub so the caliper lines up in the center of the disc. The disc is from a 92' or newer Si, the caliper and bracket and mounting plate are from the 84'-87' Prelude SI, you can use newer calipers (they are all the same size, except for the mounting, so you must use the prelude caliper bracket) The E brake cables are also for the same year caliper, You can route the cables around the gas tank, under the exhaust heat shield and drill two holes for it to come thru the floor, when you get the donor brakes also grab the e brake handle and cable mounts, the handle will bolt up where your original handle went (rear bolt, you must drill a new hole for the front and nut and bolt it together) I relocated the seat bolt brackets back (I basically removed the 4 bolts, moved the assy. backwards so that the two front holes lined up where the original rears were and then drilled two new rear holes and nut and bolted it together) In doing this it gives you enough room to bring the new cables thru the floor and also somewhere to bolt down the cable stay bracket (the first one I did, I went thru the actual seat belt bracket and used it as the stay for the cables, but I found they binded) so I went with the new route mentioned above..


Justin (From Archive) Basically went with the caliper and brackets from the 84'-87' prelude. The floating hat is from a 92' and on civic The disc is from the 92'-95' Civic SI The e-brake cables are also Prelude..

I'll be doing the same swap on Twyla's convertible, but we will be going with NSX caliper's (front and rear) for a little flair!
(the only pain in the butt is: I'm converting it to the larger vented set-up (front and rear) and then converting it back to 4x120 so she can stay with her Panasports!)

I retained the original stub axle, bolt the prelude rear caliper mount on. I'm using a floating hub from a 92 civic (it runs the same size inner bearing) I then machine the outer area for a factory 1200 outer bearing, press it in and I'm done! I originally machined the prelude rear disc to accept the 1200 stock bearings (But I realized, I would have to do this every time I needed to replace the disc) So going with the later style set-up, it uses a floating disc (much cheaper and easily available) I should have the e-brake cable set-up done by the end of the week.. For the fronts, I've made up a bracket that bolts directly to the 1200 front hub (so you can go with the larger diameter vented discs) You simply press out your original bearings, press in 80'-83' civic bearings also inner seals from the same year (you use your original outer seal), change your axle outboard to the same 80'-83' civic set-up and your done! I'm also currently building larger brackets to accept the larger Integra discs and calipers.
Justin
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PostPosted: Sun Aug 22, 2010 7:36 pm    Post subject: Sponsor Links Advertisement



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