jonnyc

ive been searching all over the net for the last couple hours trying to figure out what the easiest way to wire the jdm(if that matters) type r motor into a 92 vx

seems as though each post ive found people say different things are needed. Some say you need obd1 injectors, alternator, ditributor etc.. and others say you just need a wiring harness alll this disinformation is driving me crazy

can someone who has done the swap or knows 100% forsure what is involved tell me what i need to do.

please dont post if you dont know forsure no offence but it gets really really confusing

thanks.

court

here is a simple solution, but if you are in california, it might make you *ghasp* illegal

things you transfer from you vx to your r motor:
wire harness, injectors, and possibly dist.( if the obd2 dist doesnt mate with the vx harness)
the vx harness has the vtec soleniod wire already in it, however a knock it does not have( unless its a 92?) that will be the one that needs to be plugged in. now you need a p62, p30, or a chipped p28( knock may not be necessary here)
happy hybriding

jonnyc

holy @#$# this is so much more complicated than the original plan (b18c1) is the distributor off the vx going to perform the same as the itr one ?i assume this would be converting it to obd 1 ??

where do i get a ecu for cheap ?
where do i get injectors for cheap ?


thanks for your post good info much appreciated
anyone else care to offer some input ??

[Modified by jonnyc, 2:28 AM 12/29/2001]


[Modified by jonnyc, 2:45 AM 12/29/2001]

B18C-EJ1

If memory serves me correctly, you can use a 96 Del Sol DOHC wire harness, and it's plug and play with the 98 B18C5 engine.

The VX dist will NOT work on a C5. Sorry.

Then use a chipped P28 and forget about the knock sensor.

HTH

jonnyc

will the chipped p28 perform as well as the itr ecu ??? what about the p72 ???

can you guys point me in the rite diredtion to buy this stufff ??? remember it is jdm i dont know if it needs a different distributor than the usdm one ???

anyone here done this swap before ??? id like to hear what you got to say

thanks for the info so far guys !!

B18C5-EH2

Okay my friend, I have a 1998 USDM B18C5 in my 1992 Civic hatch and here's what I did, and how it might work for you.

My OBDII 1998 ITR engine harness PLUGGED RIGHT IN. I used the ITR injectors, distributor, etc. I did NOT have to change ****!

I also run a re-chipped P28, so it runs an OBDI program even though the motor and harness are OBDII. I put out 175whp while others i know with more mods push 160-165whp on thier stock ECUs.

So, that's how mine went - NO probs at all.

Here's what YOU need to find out - are there ANY differences in the JDM and USDM distributors? If NOT, then you can run a 1997-1998 ITR engine harness and PLUG and play. I'm sure a 1996-1998 GS-R or 1996-1997 Del Sol VTEC engine harness will work too.

IF you run the P28, then you will NEED to add a VTEC oil pressure switch to your JDM ITR motor. It does NOT have one and the JDM ECU does NOT look for it. The P28 will look for one and you need to add the VTEC oil pressure switch if you want the motor to run right.

It's very easy to add, and it works just fine.

If you try to run the JDM ECU, then you will need a JUMPER harness for it to work. Do a search on this MB for user "Kenji" because he makes jumper harnesses that are kick-***. Kenji also re-chips ECUs too. IM him and tell him Tom sent you.

I prefer the P28 because there is no add'l wiring for 2nd O2 sensor, crank angle sensor, or any other BULLSHIT that comes along with OBDII. Also, the P28 PLUGS right in and is cheaper to run than a jumper harness and a P73 ITR ECU.

One more thing: what year is your JDM ITR motor? Look on the front of the head for the year stamp. If it's a 1995, then the ECU will actually have an OBDII plug but run OBDI program! This is no bullshit, because before I ran the P28 ECU I ran a 1995 JDM P73 ECU with a jumper harness and it is an OBDI program - I didn't have to wire up the second o2 sensor, crank fluctuation sensor, etc. and the gascap check engine light bullshit never went off either. JDM ECU had SHITTY 117mph LIMITER! And the P28 runs the motor better - PERIOD. It did for me.

My views here are from personal EXPERIENCE too.

Hope this helps a little.


[Modified by B18C5-EH2, 3:23 AM 12/29/2001]


[Modified by B18C5-EH2, 3:28 AM 12/29/2001]


[Modified by B18C5-EH2, 3:28 AM 12/29/2001]

jonnyc

thank you
much appreciated you answered many of my questions
do you have msn or icq so i can pick your brain ???

everyone else keep posting !!! i need all the info i can get

court

i duno about the vx dist not working
ive seen an ls dist on a pr3 head, and an p28 dist is the same as the p30 dist
i think the p06 dist is the same as the pr4/p75
i think what you meant to say is " it wont directly bolt up like a factory one "

B18C-EJ1

a VX is a single cam a LS is a dual cam.

A P28 is not the same as a P30.

A P72 is the same as a P30 dist.

I have yet to see any SOHC dist work on a DOHC head.

jonnyc

holy **** this is getting confusing again
you guys who did this must have had headaches for a couple months straight !!

was it really as hard as its begining to sound ???
i cant seem to find any guides on what to do on the hybrid pages anywhere and everyone seems to give different answers ???

anyone who has done this want to chat with me for a bit on msn or something i would be infinelty gratefull

i will send you 5 free itr motors

B18C5-EH2

Okay, I'm about to go to bed - I'm on ET time and it's late.

The shop I work at does nothing but Hondas and Acuras, and we JUST finished a JDM ITR swap into a 1993 Civic yesterday. I will call the mechanic and get EVERY last detail on what he did - this way it will be FINAL. I know for a FACT that he ran the P28 ECU.

I also know that he did NOT use the JDM engine harness. I will NOT speculate on any other points until I talk to him tomorrow.

Now, if you could only find out if there's any wiring differences between your JDM dist. and my USDM dist. that would help also. If they're the same, then you could treat your swap as I did mine pretty much.

DO NOT get discouraged. You will be more than just satisfied once your car's up and running.

Few more questions for you: EXACTLY what car do you have? CX, VX, DX, Si, what? I'm too lazy to go back and look since i'm already in "reply" mode. The reason I ask is because the stock CX P05, DX P06, VX P??, and Si P28 can ALL be re-chipped if they have the "IPT" motherboards. Look for Katman here on the MB and/or Kenji and talk to them about it. This way you don't have to find an ECU to be reprogrammed.

EDIT: so you have a VX? Your ECU has VTEC already programmed, so it CAN be reprogrammed just as the P28 can. The reason everyone says P28 is because it's more common than your VX ECU, that's all. RECHIP it and save the money you would have spent on that damn jumper harness! AND sell the damned P73 for a pretty penny and you could even buy a V-AFC to tune your **** once it's done.

I'll talk to you tomorrow - KEEP THE FAITH!




[Modified by B18C5-EH2, 6:10 AM 12/29/2001]

jonnyc

man you dont know how much i appreciate this
if you can hook me up with all the details i will be your slave for years to come.

thanks alot
everyones rite there are some damn fine people on this board!

B18C5-EH2

My slave's name is Dana, and she's also my finacee'. J/K

Yeah, I'm going to the shop on our off day today to finish stripping my new CX down to be painted.

The tech who did the ITR swap will be there too - that's when I'll ask him all the details.

I'll let you know later today.

Katman

actually I've seen it done before..

an OBD1 SOHC distr. on a DOHC VTEC head. I forgot how long it worked for (hehe) but it did work. The guy had to micky mouse the SOHC distributor on the DOHC VTEC head, car turned on and everything.
but I can't back up how long it will last ...
I guess you can say this is an LS/VTEC way of distributors...heh..


btw -- all the OBD1 SOHC distributors are the same, internally and externally.

Katman

...actually not all VX (P07) ECU's are the same, so you can't really say that ALL of them can be reprogrammed. I'll have comparision pics of the VX ECU's sometime soon...

jonnyc

whould there be any advantages to going with the p28 chipped ecu over a chipped vx ecu(if its the one that is chippable)???

Katman

I'd go with a P28 over a VX/P07 anyday. Again, not all VX/P07 ECU's are reprogrammable, and you might own one of those. So, going with a P28 ECU will guarantee that you can get it reprogrammed.

SPOCK

i have a 92 vx hatch and swaped a b series vtec and the ecu is not reprogramable. you cant change the rev lim. and the stock harnesses(engine&car) needs a knock sensor.i recommend any obdi b16 harness, but b18c1 will work. you will have and extra plug hanging though(secondary butterfly valve). get a p28 chiped ecu if you plan on doing some mods. it will save you time and money if you know where you are heading. try looking into hondata or zydne. i have seen some great hp gains in those ecu's. obd1 and obd2 injectors are the same. obd0 injectors wont fit into the obi1/2 harnesses.use a dohc dist to get decent timing.

jonnyc

are you sure that obd1/2 injectors are all the same ???

and any distributor will work ??? ive heard different i think there might be a difference between the jdm and usdm ditributors hopefully not !!

a p28 ecu is any ecu from a 92-95 si hatchback ??(i found one from a 93 si(standard) just wondering if i should buy it)


thanks guys your a huge help!!


[Modified by jonnyc, 8:21 PM 12/29/2001]

Katman

he means to say that thee pulse rates between OBD1 and OBD2 injectors are the same, the problem is that they don't have the same plugs and OBD2 inj. will not plug into an OBD1 engine harness. You'll have to change the inj. plug to that of an OBD2 plug. Or you can just find a set of OBD1 injectors, preferrably GSR ones.

JDM and US distributors are exactly the same.....no difference.

The P28 ECU you found from that 93 Si, will work just fine for reprogramming. For the record, P28 ECU's are only found in 92-95 Si/EX civic models only -- there are no others.

jonnyc

awesome more good info !!
will the gsr ob1 injectors flow enough for the itr motor ??
where should i get the p28 chipped im kind of weary about letting just anyone do it anyone have really good results with any specific company ???
who did yours b18c5 eh2?? seems to be giving you really good power !!




[Modified by jonnyc, 11:34 PM 12/29/2001]

Katman

yeah they'll work fine on a ITR engine.
I reprogram ECU's...if you trust me with it, go ahead and send me an email and I'll give ya the info you neeed. Im yo pussha

BlueR

iTrader: (10)

hey, katman
sent you emails and im
please respond
thanx

court

hey krapman, whats wrong with you, ej1 says he has yet to see a d sereis on a b series head, so it cant be done
btw jase, not all obd1 d series dist are the same "ex"ternally

jonnyc

who is rite are they the same or are they different ????
anyone done the swap who can tell me ???
keep up with the helpfull info everyone !!