My question is if I got a d16y8 motor with everything on it. Cant i just plug and play the motor into my engine bay.. and hook up the apexi v-afc and then be done with swap??? or is there more to this than i know?

i got the d16y8/y8 fuel pressure reg/apexi v-afc/89si(intake,tranny,ecu,injectors/fuel rail)..what else do i need to do this?? 89si dizzy?....y8 clutch and flywheel? and is that all?

-im using my 89si tranny which flywheel and clutch can i use with my 89si tranny... is it possible to use the 96-00 clutch&flywheel on my 89si tranny. also do i have to use my 89si dizzy with the swap???

should i use polyurethane for all the motor mounts ride roughness doesnt matter to me?


Thanks
Nelson

i seen webpages and topics about this. and so but i need the info directed to me. this page confused the **** out of me... http://www.angelfire.com/ca/DrOhm/hybrid.html i would like it in simpler terms.


[Modified by PaImportTuner, 3:08 AM 10/25/2002]

 

its basically plug n play some wires you have to extend...map sensor and rad fan

the 96 clutch will not work with 89 tranny...i believe its 90+ only

 

also you have to use obd 0 injectors

and yes you use 89 si dizzy

 

whats better a6 manifold&TB or y8 manifold&TB???

does ANYONE know what clutch to use with the y8 swap on my 89si tranny???? who here has y8 swap with 89-91si tranny...and what clutch do they get for the car meaning... year of car/model


[Modified by PaImportTuner, 3:32 AM 10/25/2002]

 

89 and up trannys all have the same input shaft spline. but the 89 flywheel is smaller than 90+ What you need to do is use the clutch for what flywheel you are using. either use hte 89flywheel and clutch or if you use the y8 flywheel you can use a 90 and up civic clutch. On my z6 i am using the z6 flywheel and clutch with my 89 tranny.

Andy

 

so if i use a y8 flywheel i can use a 90 and up clutch... now when you say 90 and up clutch what year is that up to? 90-95?? 90-99?

 

You can use any D-series clutch, as long as the years are between 89-00.

Make sure you use the same parts tho - e.g. 89 Si flywheel MUST be used w/89Si clutchdisc and 89 Si pressure plate. If you want to use the Y8 clutch, make sure all 3 clutch components are from the Y8 (clutch disc, pressure plate&flywheel).

Does that make sense? - no mixing and matching...


[Modified by MrTodd, 9:12 PM 10/24/2002]

 

if is 92-01 you can mix and match they are all the same. then you have the 89 and then the 90-91 which you cant mix and match

Andy

 

I stand corrected.

 

Let's try and clear this up a bit:

You want to drop in a D16Y8 motor into your '89 CRX Si right? Let's worry about getting the motor in before you worry about the VTEC.

First you should decide if you want to convert to OBD-1, or stay w/OBD-0 (easier IMO)

Let's say you stay w/OBD-0. Once you have your Si motor pulled out, you'll need to transfer these to the Y8 motor.

1- '89 Si tranny, use either your old Si clutch (entire assembly, pressureplate/flywheel/disc), or use the Y8's clutch, also the entire assembly. (or do a little bit of mixing and matching as mentioned above - or use a Z6 clutch!)
2- '89 Si distributor, it fit's the Y8 head perfectly!
3- '89 Si wiring harness, everything plugs in just right except for two things. A)The Y8 motor has a knock sensor, don't worry about it. B)The thermostat housing has the fan switch sensor, instead of it located on the back of the block, extend the Si wiring harness wires to fit accordingly.
4-'89 Si fuel injectors, keep the Y8 manifold on the Y8 motor, then just replace those injectors with your old Si injectors.
5- Drivers side motor mount ('89 Si), transfer the ENTIRE motor mount from the Si motor(except the 'L' shaped piece), to the Y8 motor, just toss the Y8's mount.

Now your ready to drop it in.


[Modified by MrTodd, 9:57 PM 10/24/2002]


[Modified by MrTodd, 9:58 PM 10/24/2002]

 

Once the motor is in the engine bay, the hardest part will be wiring up the intake manifold. (you can use your A6 manifold, but the Y8 manifold is much more free flowing=more performance)

I think I have a write-up somewhere on my computer about installing the Y8 manifold (I've been through all of this before). It has a few small details that I can't remember right now... I think I also have some pictures... But I'm not on my home computer!

For starters: The only A6 ('89Si) pieces that are gonna be transfered to the Y8 manifold are the injectors - that's it. Keep the fuel rail, TB, FPR, pretty much everything on the Y8 manifold - EXCEPT the Purge-cut off solenoid (mounted on the Y8 fuel rail) you don't need this piece...

EDIT: You don't need to put any polyurethane inserts in the mounts - only if you want to. I didn't, and my motor puts out more power than a full Y8 motor...





[Modified by MrTodd, 10:11 PM 10/24/2002]

 

would it be Easier just to keep the a6 manifold/TB/injectors and just swap the y8 fpr/rail right to the a6 manifold?.... i just want an easy install..

cause basically i would unbolt the a6 manifold and then bolt it back up to y8 motor and im done with that instead of using y8 mani. and changing little things right? so would it be easier and faster using the a6?

right now my main concern is getting it working.

also does anyone know of a site where i can get info or done it themelselves on how to install the Apexi v-afc into there 89si w/d16y8 swapped car?


[Modified by PaImportTuner, 7:07 AM 10/25/2002]

 

well im using obd1 injectors and everything pluged in fine

 

Yeah, it's a bit easier to just keep your A6 manifold. It bolts right up to the Y8 motor.

As for the V-AFC, follow the instructions provided in the book. It shouldn't be too difficult.

 

thanx alot MrTodd I used to be all knowledgable about Hondas but lost it when I went to the darkside(DSMs).. but now i'm back.

Man I start work at 400am its 230am right now..no sleep = bad to work at UPS with no energy!!! its just that this stuff was pissing me off.

 

now back to tranny question again,

possible setups:?????????
-y8 flywheel using 89si tranny w/ z6 clutch & pp ...possible?
-y8 flywheel using 89si tranny w/ y8 clutch & pp ...possible?
-a6 flywheel can only be used with 89si clutch & pp ...right?

now what set up is better? stick with all 89si stuff or go z6/y8 route?

 

-y8 flywheel using 89si tranny w/ z6 clutch & pp ...possible?
-y8 flywheel using 89si tranny w/ y8 clutch & pp ...possible?

The z6 and the y8 clutch are the same. Same part number and everything so I would go with that.

-a6 flywheel can only be used with 89si clutch & pp ...right?

if it is an 89 a6 flywheel you are correct in that. It is 200 mm vs. the z6\y8 212 mm


as for vtec what ecu are you gong to use? if you stay non-obd then you will not find any instructions in the vafc manual to hook it up. Go here, It is the webpage that I used to hook up my vafc and a couple of friends. http://www.geocities.com/bing_bong916/vtec_cont3.html

As for the manifold I would highly reccomend that you use the y8 manifold. If you compare them you will notice tat the y8 version is much larger and will do a lot for your engine compared to a puny a6 manifold.

as for injectors if you stay non obd you really should use a6 injetors or if you really want to use the saturated obd injectors just take out your injector resistor box.

Andy

 

Ah Jesus Nelsons back to the H side again

Welcome back man, looks like you can go to my next Civic/CRX meet now

 

You can use your 89 tranny with the Y8 flywheel and clutch. The pilot bearing is the same the throwout bearing may be different though. The 89 tranny has the same imput shaft only the clutch disc is different. You cann't use your Y8 injectors. They will not plug into the SI harness (I believe). But 92-95 will work because they plug in but you dont use the injector resitor box. Use the Y8 intake manifold and T/B you will have to get or use your old IAT sensor and mount it in you intake piping. I used may old IAT from my DX and zip tied it on til I can get the pop in one from a Y8. The harness wouldn't be plug and play unless you use your SI harness. Just swap it over to the Y8 and drop it in. You need to use a 88-91 SI diz.
Good luck


[Modified by zCivic, 10:25 AM 10/25/2002]


[Modified by zCivic, 11:04 AM 10/25/2002]

 

You can use your 89 tranny with the Y8 flywheel and clutch. The pilot bearing is the same the throwout bearing may be different though. You can use your Y8 injectors but dont use the injector resistor box. the OBD 0 ECU reads high impediance (sp) which OBD 0 are low. But 92+ will work because there higher, I think OBD0 ECU's need 5 ohms. Use the Y8 intake manifold and T/B you will have to get or use your old IAT sensor and mount it in you intake piping. I used may old IAT from my DX and zip tied it on til I can get the pop in one from a Y8. The harness wouldn't be plug and play unless you use your SI harness. Just swap it over to the Y8 and drop it in. You need to use a 88-91 SI diz.
Good luck