Zc swap questions..

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Old Jun 27, 2002 | 06:56 AM
  #1  
1990hondaHF's Avatar
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Default Zc swap questions..

OK..here we go. I'm ordering a ZC engine today and want to be sure that when it gets here the swap goes smooth. I'm making a list of things I need but am sure I'm forgetting something so fill in the gaps if I am.

1. Zc engine(obviously!)
2. New chip someting like this http://cgi.ebay.com/ebaymotors/ws/eB...tem=1839443996 I hope this chip is not to aggresive because I want to run 87 octain gas
3. I'm using my stock HF trany till I figure out all the things I need to install the ZC trany...or will an Si bolt right up? Do I need new hubs? Axles?
4. Water pump, timming belt, plugs, wires, cap, rotor, oil filter, etc. (still unsure what to tell Auto Zone or Pep Boys what engine I have because I'm sure they would look at me funny if I said "ZC")
5. New clutch...again not sure if I need to get one that mates up to the ZC engine or is the stock CRX HF one will do???
6. The wiring, I'm sure, will be different but have had no luck finding ANY info on that mess.

I have used the search and learned a lot of great info but still have some holes....please help!


[Modified by 1990hondaHF, 4:53 PM 6/27/2002]


[Modified by 1990hondaHF, 4:56 PM 6/27/2002]
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Old Jun 27, 2002 | 07:16 AM
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Denny317's Avatar
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Default Re: Zc swap questions.. (1990hondaHF)

http://members.aol.com/_ht_a/nosajuf/nosajuf2.htm
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Old Jun 27, 2002 | 07:17 AM
  #3  
wronghand's Avatar
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Default Re: Zc swap questions.. (1990hondaHF)

As far as the wiring, the only thing you will need to change will be the plugs for the distributor and and cylinder position sensor. Check out quickhonda.net for a complete parts list for the ZC. I would probably recommend honda parts for the tune up, timing belt, etc. You can use your current clutch.

HTH

Don't feel bad about the search thing. You can't search for 2 letter words.
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Old Jun 27, 2002 | 08:07 AM
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Default Re: Zc swap questions.. (wronghand)

You WILL be VERY unhappy with the HF gearbox, get an Si or ZC one. ITs all about gearing. HF, DX, or STD are all way wrong for the ZC motor but they will physically work. Been there myself, changed my mind about using my DX trans real quick. Motor was a DOG with those gears, You need the lower gears of the Si or ZC. Si trans= easier BUT has wicked torque steer. ZC = harder but NICE, no torgue steer. Needs 90-93 TEG axels and in your case new hubs. Wiring on an HF try http://www.Hybridgarage.com and do a search on the web for Hybrid Honda or honda engine swaps. also http://www.hasport.com shows what it takes, it really is easy to get a lot of the basic info off the net. As far as ECU goes, ZC ecu is optimum if you don't race (has a 112mph limiter as ALL JDM has) fuel maps are perfect, or you can run a 88-91 TEG 5-spped ECU , almost as good, or an Si will work but is worst choice. Those can be rechipped for the ZC fuel map without the speed limiter.


[Modified by virginia_dude, 12:13 PM 6/27/2002]


[Modified by virginia_dude, 12:16 PM 6/27/2002]


[Modified by virginia_dude, 12:17 PM 6/27/2002]
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Old Jun 27, 2002 | 10:45 AM
  #5  
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Default Re: Zc swap questions.. (virginia_dude)

So if I did find a Si trans, would my hubs(HF) and axles(HF) work? If not what car do they need to come from and how hard is that install?

Now about the Zc trans...what hubs will I need for this one?


I just want the easiest install possible......so if someone could verify that I CAN use my HF hubs and axles with the ZC trany or even the Si trany..let me know


[Modified by 1990hondaHF, 8:16 PM 6/27/2002]
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Old Jun 27, 2002 | 10:54 AM
  #6  
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Default Re: Zc swap questions.. (1990hondaHF)

Well I don't know from personal experience if the Inner CV joints will fit the Si or not, I seem to think somebody said they had used them, I know the outer CV joints and the shaft into the hub is smaller and therefore weaker.If you were to buy DX or Si Hub assemblies you would end up with bigger brakes too. And then since you are buying axles anyway I would recomend the ZC trans. But its your choice, Not many low milage 11+ year old transmissions in the junkyards. But you can get a cheap lowmilage ZC trans easily. for $150 and shipping. Anyone out there able to confirm if the HF axles fit the Si box or are the inner joints too small?

Oh and when you put a new timing belt on the motor when you get it Buy a HONDA belt, I have bad experiences with GATEs and the prices were almost the same anyway. The Si trans looks just like the HF, HUBS ? never changed one myself.

[Modified by virginia_dude, 2:55 PM 6/27/2002]


[Modified by virginia_dude, 2:57 PM 6/27/2002]


[Modified by virginia_dude, 3:02 PM 6/27/2002]
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Old Jun 28, 2002 | 01:00 AM
  #7  
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Default Re: Zc swap questions.. (1990hondaHF)

So if I did find a Si trans, would my hubs(HF) and axles(HF) work? If not what car do they need to come from and how hard is that install?
Now about the Zc trans...what hubs will I need for this one?


I just want the easiest install possible......so if someone could verify that I CAN use my HF hubs and axles with the ZC trany or even the Si trany..let me know
the HF axles *WILL* work with the Si tranny, no BS i had them in my car the worked fine. anyone that doesnt think so can come over and look/measure/compare.
the ZC tranny will require the teg axles [edited] and Si/DX hubs.

so to recap the cheapest and easiest way is the HF axles/hubs and a Si tranny.


[Modified by turbohf, 10:51 PM 6/28/2002]
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Old Jun 28, 2002 | 01:03 AM
  #8  
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Default Re: Zc swap questions.. (turbohf)

oh yeah and i have had HF axles on my ZC for over 6 months, havent broken one yet (tranny yes, axles no)...
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Old Jun 28, 2002 | 03:56 AM
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Default Re: Zc swap questions.. (turbohf)

No the Axels are 90-93 NON-ABS TEG axels, NO mods, they fit and work perfect. 88-89 are too short. And you will need Si or DX hubs. Thats what I have on mine. And you can jam on the gears without fighting to keep the car straight since you will have no torque steer. And Around my area a good used lowmilage Si trans is impoossible to find and what you do find cost twice what a good low-milage ZC trans costs. But make sure you get the intermediate shaft with the ZC trans, no other one works. ZC block has a unigue bolt pattern.


[Modified by virginia_dude, 7:58 AM 6/28/2002]


[Modified by virginia_dude, 8:00 AM 6/28/2002]
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Old Jun 28, 2002 | 04:24 AM
  #10  
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Default Re: Zc swap questions.. (turbohf)

the ZC tranny will require the teg axle crap (i heard it was part a 88-89 and part a 90-93) and Si/DX hubs.
like virginia_dude says this is untrue. you can use the 90-93 teg axles without modification.

not to be a dick, but make sure you don't tell any more people they need hybrid axles for the ZC tranny b/c it just isn't true.
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Old Jun 28, 2002 | 09:10 AM
  #11  
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Default Re: Zc swap questions.. (breaka_1_9)

OK now I'm truly lost....

This is what I want to do:
use my HF axles and HF hubs that are on the car now with a SI trany and ZC engine...Will this fit?

as an option, mainlt because I am having a hard time finding an SI trany in my town, I might go with a ZC trany...so what will I need to make THIS setup work with my HF?

Thanks!
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Old Jun 28, 2002 | 09:16 AM
  #12  
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Default Re: Zc swap questions.. (1990hondaHF)

Simple with a ZC trans you will need 90-93 Integra Axles Non-abs type, you will also need to swap over your hubs to DX or Si hubs, they are the same. You should be able to get the whole Brake assy assy for cheap at a wrecking yard, DX is much more common than Si wrecks. do that you get hubs bigger brakes and all. But what you really need are the hubs, Someone thinks Your brakes will work with it but that part I don't know. Since mine was a DX to start. Driving with the ZC trans is just like the Si but without the torque steer. And after going through two "Good" Si transmissions I bought a ZC and it was worth it. Changing a trans is a major pain in the ***, and when you do it and then find your trans sounds like it has gravel in it 100 feet down the road TWICE, you want to stuff them both up the *** of the guy who sold them to you. There are Few low milage Si's in the yards anywhere, Low milage transmissions for the ZC are common and actually cheaper. Count the cost of the axles and its almost a wash. My recomendation is go that route.

[Modified by virginia_dude, 1:17 PM 6/28/2002]


[Modified by virginia_dude, 1:21 PM 6/28/2002]
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Old Jun 28, 2002 | 02:04 PM
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Default Re: Zc swap questions.. (virginia_dude)

that link about has the WRONG info for the head gasket! it needs to be a 88-89 Integra head gasket.

virginia_dude, this may be true about the Si tranny. but my first one was 100 bucks(the diff. exploded), the second one only cost 50 bucks (havent put it in yet). a ZC tranny cost around 200+axles+intermitate shaft (if not included)= to much money for me...
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Old Jun 28, 2002 | 02:14 PM
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Default Re: Zc swap questions.. (turbohf)

Well Nippon has them advertised (ZC for $150) I paid $250 locally from Noyan with the intermediate shaft, Junkyards are asking $300-350 every one I contacted (for the Si). THe last two I bought were bad due to high mies ( and they were supposed to be 100,000mile units) gearsets don't wear out in 100,000 miles on honda transmissions and these were. Two wasted weekends and serious labor on my part plus $15 worth of MTF every damn time I had to do it and that totals thre times. Axels were quoted as $45 each from the same junkyards who quoted me for the Si transmissions I paid $78 each for remanufactured ones with lifetime warranty from Trak Auto. Now I do know that will vary regionaly due to demand etc. But on the east coast thats what they are running. and it wasn't just local yards I called as far south as Georgia. Thats how I arrived at those numbers.


[Modified by virginia_dude, 6:15 PM 6/28/2002]


[Modified by virginia_dude, 6:16 PM 6/28/2002]
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Old Jun 29, 2002 | 12:25 AM
  #15  
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Default Re: Zc swap questions.. (virginia_dude)

sorry drifting a little OT here, but how much power will i need to be producing to have torque steer be a bitch? im only having problems when its wet and only one tire is spining on the shift.
the ZC tranny that was bolted to my engine was quoted to me at $200 (i believe the same as the DX trannies they sell), but i declined cuz the guy installing engine offered a Si (they aslo better gearing) for $100...
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Old Jun 29, 2002 | 05:25 PM
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Default Re: Zc swap questions.. (turbohf)

Gearing between the two is about the same in 5th, final drive is taller but the gear are longer but coloser in ratio, in the wash they are about the same. But with the Si and C I had it pull hard to the right on ever shift when I was accelertaing hard. With the ZC I can be accelerating as hard as I can and shifting as quick as I want and hold the car straight with one finger. Besides I may drop a Si final in it and make the UBER D series gearbox. with shorter overall gears than either one anlone and a close ratio to boot. And mine is an ultra clean ZC, all sensors were intact, and excellent condition with the internals. So mine ran exceptionally well. I have the JDM ZC ECU So it has the ultimate maping, with just the downside of a 112mph speed limiter. I don't race so that never mattered to me.



[Modified by virginia_dude, 9:28 PM 6/29/2002]
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Old Jun 29, 2002 | 11:35 PM
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Default Re: Zc swap questions.. (virginia_dude)

I have the JDM ZC ECU So it has the ultimate maping, with just the downside of a 112mph speed limiter
i have you beat. no speed limiter, redline where ever the hell i want it, PLUS i run 450cc DSM injectors on it with no problems, and it all started with the ZC maps. but at a cost, its the Zdyne SECU (now thats ultimate). btw about how much do the PM7's run? its about $150 right?

umm, ZC tranny. i will give it some more thought, thanks for the info...
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Old Jun 30, 2002 | 07:26 AM
  #18  
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Default Re: Zc swap questions.. (turbohf)

I don't know the average cost of them, I paid $100 for my JDM ZC ECU. When I bought my engine from the importer. I do know they are not nearly as common as the engines are. They get only a couple for every 50 motors they get in. Prices tend to reflect that. As far as the redline is concerned, unless you put eagle rods in the bottom end reving past 7,200 isn't a great idea. Stock rods are too weak to be reving any higher. Well I was really meaning Ultimate factory part. Of cousre with Eagle rods, forged pistons, even better cams, yes you can have something even better. And I do agree the ZDyne is better, but it does need some tweeking. If you go Turbo its really indespensible. Question, Why are you running 450cc DSM injectors unless you are running a turbo also? Normally Aspirated I have no fuel problems at 7,200 with the factory original ZC injectors. OK, I did notice your name, So you ARE turbo. Well if I had the funds right now I would be too. I'm of the school too much is usually just enough when it comes to power. ANd like my signature says speed is all a question of money. Something thanks to these Worldcom ******* thieves I am quite short of at the moment.


[Modified by virginia_dude, 11:29 AM 6/30/2002]
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Old Jun 30, 2002 | 10:26 AM
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Default Re: Zc swap questions.. (virginia_dude)

im a little short on money to finish the project. the only reason the 450s are in there is cuz i had them and i dont have a laptop at the moment and my friend was coming over to tune the car for me, so i popped them in (knowing sence way before even buying a CRX i was going turbo). i need boost soon........
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