sinister357

my cousin has a 96 cx that he would like to turn into an ex, mini me. would that be possible with the existing block that he has? any other wirings do we need to know about?(i'm guessing, vtec, oil pressure...etc) also, the head and ecu we have is out of a 99 ex automatic, going into the manual cx. will there be any problems? i've heard the automatic ecu hace a few aditional wirings that may or may not need to be hooked up. anyone that has done a similiar swap, please share your experience with us.

jdmek98

the block will work except the automatic ecu will not

POE

bitchs need to search this site for MINI me

klungemonger

Lots of mini-me topics already exist...
But my .02...

1)ditch the ecu. Get a P28 & an OBD1 conversion harness
2) Get the EX tranny
3) Use a Y8 manifold with that head or you'll choke it.

sinister357

Vtecin94dx, if you don't have an answer, it's ok, just say you don't know it. and jdmek98, can you explain a little more on why the ecu might not work because i've heard differently. thanks in advance.

POE

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sinister357 &raquo;</TD></TR><TR><TD CLASS="quote">Vtecin94dx, if you don't have an answer, it's ok, just say you don't know it. and jdmek98, can you explain a little more on why the ecu might not work because i've heard differently. thanks in advance.</TD></TR></TABLE>
nah dude its just because this **** has been covered on this site SOOOO many times, and I get tired of seeing the same damn questions that ***** dont look up to ask

POE

take off the head, pull the oil jet plug, get an IM from the Vtec head, and the vtec wires, and u need a 5 speed ECU not an Auto, i have one for sale if u would like to buy one? and u would want to get an EX tranny not a dx or cx because of the longer gears in those lower model trannys, Wich means slower accelleration.

Revolver

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Vtecin94dx &raquo;</TD></TR><TR><TD CLASS="quote">
nah dude its just because this **** has been covered on this site SOOOO many times, and I get tired of seeing the same damn questions that ***** dont look up to ask</TD></TR></TABLE>
Agreed. Now people think i'm a flamer because i'm sick of people not reading the rules.

sinister357

yes, i forgot to mention we have the complete intake manifold (throttle body, injectors, engine wiring harness) from the ex. what ecu's are the p28 from? would the stock manual cx ecu be able to run the ex head - then i'll just get a seperate vtec controller..(?) or would the fuel mappings be way off? i'm just woudering what my options are. any more opions on the automatic ex ecu?

klungemonger

The P28 is from 92-95 Civic Si & EX models. It's just better not to hassle with auto ecus. Not saying it won't work at all, but if you're 5-speed don't fool around with it.

Yes you can keep your stock ecu, you should use the intake manifold & t/b from an auto Y8 (but NOT the ecu!) since the IACV wiring is the same between Y8 auto and all Y7 engines. Then hook up a VTEC controller, like a VAFC or Fields. You can dial in the extra fuel you need with those units. With a P28 you just make sure you switch to Y8 injectors, and you can use some of the unused sensor wires left over from going OBD1 to run the VTEC signals.

sinister357

Vtecin94dx, what do you mean pull the oil jet plug? where is it and why? how much are you asking for your manual ecu? what year is it out of? as for tranny, would 92-95's fit? if not how much will i be looking to spend on that? thanks...

POE

somone need to hook this dude up with bauleys link and let him start reading. I will sell you the ecu for 110 and it from a civic ex 94

POE

https://honda-tech.com/zerothread?id=635580
here u go buddy. dont be a bitch anymore and search

klungemonger

I don't think there is an oil jet on 96-up models, just the earlier non-VTEC models. $110 shipped is a good deal on a working manual P28...
for a tranny, $150-200 is alright. Any trans from an EX or Si 92-95, or EX 96-00 is a good choice. Newer usually means less mileage though...

POE

yeah there may not be an oil jet in your block, but just check and make sure.

hondadriver

Don't do OBD1, you don't need to. If you do you have to buy the OBD1 to OBD2 conversion harness. Even though you have the ex engine harness, you won't be able to use it really nor a ex ecu. Becasue you DON'T have a knock sensor. EVERYONE and there mom keeps saying use a ex ecu, well it doesn't work good. When i did my mini me I tried a ex ecu and it casued nothing but problems. Becasue of the 3 wire IACV and not having a knock sensor in the block. All I did was swapped the head and used a rpm activated switch, for the vtec, it won't hurt anything (and people use to say it burns out the vtec solenoid, well thats bullshit, becasue the ecu and the rpm switch both throw a 12v signal for the activation of vtec)! Just swap the head, and the IM. And you DO NOT have to remove the oil jets, they are in the head! And all civic injectors are the same (at least 92-00) they all flow 240cc. It doesn't matter EX, DX, SI, LX, CX.
EX injectors won't help anything. I have a 2nd Gen JDM B16a in my 98 LX and I did my swap so that it would run off a OBD2 ecu for inspection purposes, and I have 96 EX injectors in my b16a and it runs fine. Don't get fooled becasue EX and SI's have vtec and then everyone thinks that those injectors will help more. Just sell the auto ecu and engine harness on ebay and buy a rpm activated switch from summit racing and call it a day. I had my mini-me for 2 years with NO problem. Then I sold it and bought the b16a.

klungemonger

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondadriver &raquo;</TD></TR><TR><TD CLASS="quote">Don't do OBD1, you don't need to. If you do you have to buy the OBD1 to OBD2 conversion harness. Even though you have the ex engine harness, you won't be able to use it really nor a ex ecu. Becasue you DON'T have a knock sensor. EVERYONE and there mom keeps saying use a ex ecu, well it doesn't work good. When i did my mini me I tried a ex ecu and it casued nothing but problems. Becasue of the 3 wire IACV and not having a knock sensor in the block. All I did was swapped the head and used a rpm activated switch, for the vtec, it won't hurt anything (and people use to say it burns out the vtec solenoid, well thats bullshit, becasue the ecu and the rpm switch both throw a 12v signal for the activation of vtec)! Just swap the head, and the IM. And you DO NOT have to remove the oil jets, they are in the head! And all civic injectors are the same (at least 92-00) they all flow 240cc. It doesn't matter EX, DX, SI, LX, CX.
EX injectors won't help anything. I have a 2nd Gen JDM B16a in my 98 LX and I did my swap so that it would run off a OBD2 ecu for inspection purposes, and I have 96 EX injectors in my b16a and it runs fine. Don't get fooled becasue EX and SI's have vtec and then everyone thinks that those injectors will help more. Just sell the auto ecu and engine harness on ebay and buy a rpm activated switch from summit racing and call it a day. I had my mini-me for 2 years with NO problem. Then I sold it and bought the b16a. </TD></TR></TABLE>

Apparently you didn't know what options were available when you did yours, there are several ways you can set it up. None of them are wrong, but what works for you he might not want to do. But some things should get cleared up...

1) First of all, OBD1 is better, period. Of course if he goes OBD1 he will need a conversion harness, they are getting cheap too (now $74 shipped).
2) RPM switches are the cheap way, not the best way. If you can't afford a VTEC ecu it gets the job done, but it's not better. He has auto Y8 stuff so if he wants to save money then good,otherwise he'll have to tap the manifold also for the 2-wire IACV.
3) The 2 wire IAVC plug swap is ridiculously easy to do.
4) OBD1 P28 ecu does not require a knock sensor. OBD2 VTEC ecu's do, but that's one reason why we say don't use the 96-00 EX ecu.
5) Your injector statement is innaccurate. Every Civic and Integra uses 240cc injectors EXCEPT the Y7 engine which uses 180cc. If you use a Y7 ecu with Y7 injectors and a fuel controller thats fine, using them with any other ecu will make him run lean.
6) I agree he should just use stock harness and cannibalize the connectors he needs from the auto harness.

eg6ky

bauleys link is excellent i used that to do my swap. Only took a couple of hours, maybe 3