Prelude Dude

I am planning to swap a ZC into my EF. Since it's a Si, I won't have to worry much about electrical. I am sure there are some people here that did the exact same swap, I have three questions for you:

1. Did the Si AC bolt up to the ZC block, or a different compressor bracket is required ??

2. Did the ZC exhaust manifold bolt up to the Si exhaust without any modifications ??

3. Will a 4th gen (OBDI) DOHC ZC bolt into an EF ??

imported_Dawson

the zc`s for 4th gens are OBD 0 and the exhaust bolts up like normal and i think the a/c compressor will bolt up fine because its the same gen "D series"

Prelude Dude

Dawson, thanks for your reply
Does anyone know if a ZC that came in 92-95 jdm civics (OBD1) will bolt up to a EF chasis.

Cynikal.Mindset

if u use your mounts it will...then just use a obd0 distributor and a couple other things may need to be modded but the motor itself will go in fine

Prelude Dude

Cynikal, why should't I use the OBDI distributor ?? I remember hearing something about OBD0 and OBDI not being compatible when it comes to distributors, is it true ???
Another question, can I use a 92-up flywheel, clutch combo with the ZC and Si tranny ???

Cynikal.Mindset

well unless you wanna convert to obd1 then use the obd0 distributor...that way it will plug right in and u can run your obd0 ecu and all that...and if I'm not mistaken you can use the 92up flywheel/clutch combo as long as the car is not a 88...or somethin along those lines

Prelude Dude

Cynikal, thanks for your input I will see what I can do about the distributors. I will keep you guys updated. I saw these OBD1-OBD0 distributor adaptors, link judging by the design the difference between the two is only in the plugs.
As far as the clutches go I heard that the number of spinlines was different on the tranny input shaft on 88 models. I just want someone to confirm if the 92 up combo will fit my application.

bbarbulo

iTrader: (2)

92 up works as long as the car is not an 88, and also you need to get the 92+ flywheel too. that is all. end communication.

Prelude Dude

I did my flywheel/clutch research and it looks like I will be fine with any 90 up SOHC flywheel. As far as the clutches go, if I use a 91 clutch I will be fine since I am using a 91 tranny. If I would like to use a 92 up clutch, I will be fine as long as I use 91 release bearing. That's about it. I got my ZC today, looks very nice, I am waiting on a couple of parts and I guess I will be swapping next weekend

imported_Thrill_House

I have a nearly brand new OBD-0 Dizzy for sale for you ZC if you want it. PM me.

Prelude Dude

Prelude Dude

So I did my swap over the weekend, everything turned out well. I ended up using a OBD0 distributor and CYL sensor, I didn't have enough time to swap out the crank rotor in the OBD1 distributor that my ZC came with. I also used Z6 flywheel, it's about 3 lb (?) lighter than 91, and a 91 clutch kit. The exhaust bolted up so did the AC bracket. I will have pics later on tonight and I will try to post them.

mdt920

Sounds great dude. Im planning to do the swap too. In my CRX -- DOHC ZC. I very interested to know how well it went also the pics. how long it took etc.

Prelude Dude

It actually went very well, I didn't have any problems and it took around 20 hours. I didn't take any pics as I went, but I have a couple of before and after shots.