i know this has been ansered and i couldent find it with the search button but what all do i need to make a 93 civic si head work on my 88 crx dx i.e dist,ecu,fuel injectors ect
thanks

 

anyone

 

Just depends do u want to run ob0 or obd1


For obd0 u will need the following:
sohc vtec head
si/hf dizzy
d dsieries intake manifold
Rpm activated switch for vtec, Or a vtec ontroller,

For obd1 u will need the following:
sohc vtec head
sohc vtec dizzy
sohc vtec intake manifold, injectors fuel rail
sohc vtec ecu
obd0 to obd jumper harness

I think thats about it

 

im gonna be doin obdo and i have a 93 civic si head with intake manifold can i use this manifold and injectors with a 89 crx si ecu and dist??
so is this evrythring i need
sohc vtec head
88-91 dist (si)
88-91 ecu (si)
93 si intake manifold (can i use it with the 93 si injectors)?
vtec controller
dx-zc wiring conversion


[Modified by projectcrx, 10:07 AM 6/13/2002]

 

come on people
please help me

 

yes that is all you need. but you cant use the 93 injectors. you need 88-91 with a resistor box.

 

I have a 88-91 si intake manifold with injectors and sensors and i also have the resistor box if you are interested. check the link in my sig.

 

Aight, I just did a mini-me swap on my 91 Si. So i've got the info fresh in my mind. Consequently I also had the head from a 93 Si. Well anyways. I stayed OBD0. Basically just unbolt the DX head and bolt on your Si(z6) head. From your list I'll let ya know what you're gonna have to do.

sohc VTEC head: pull your old head off and bolt the Z6 head on. Make sure you clean up both mating surfaces. DON'T FORGET THE DOWEL's....I made this mistake and I had to pull the head and replace the head gasket after it was all said and done. A 92-95 OR 88-91 head gasket can be used. The 88-91 is about 1/2 the price but is a pain to remove. The 92-95 head gasket is 50 bux or so, and usually is a special order item at most parts houses.

88-91 Dist(si): Not a problem to use, though you'll have to bore out the top bolt hole, and notch the front leg to get the dizzy to mount up.

88-91 ECUhmmm....from my initial impressions thus far, it's about the worst ECU you can use for the setup. 88-89 'teg ECU's(pg7) are close, but not perfect. Right now the car seems to run best when cold, when the fuel is richened up, and the spark is somewhat advanced, during the "cold mode".

93 Si intake mani: From what i've read this is a direct bolt on an flows a bit better than the 88-91 Si manifold. However, i'm think there may be some sensor postion differnaces. I believe the newer Hondas have the MAP sensor on the TB...just FYI. It won't be a direct bolt on but it'll be close. You CANNOT use the 93 injectors, they are a different type than the 88-91 injectors. Use 88-91 Si inectors.

VTEC controller: V-AFC, Fields, etc......take you pick. My choice would be the V-AFC, albeit a bit pricey, you should be able to somewhat correct the fueling troubles with it. The sprak map differencs on the other hand.....I'm using an RPM switch/relay combo. I've got a Zdyne SECU for my racer that I may swap in for a few days with a P28 tune laoded up...just to see the differences

DX-ZC wiring Many places this can be found, the hybrid page and my website are amoung a few of them. If you go looking it's in the swap section of either

HTH

~steven

 

thanks alot that was a grate help i only have one more qustion when i change my wiring for dx-zc will the pg7 ecu connect fine to my wiring harness??
thanks agin

 

As far as I know it's plug and play. Try stepping over to resource.crx.org, the discussion boards over there have quite a bit of info on the mini-me swaps. The PG7 may run your setup a tad on the rich side. 1.5L vs 1.6L.....Most people recommend swapping out the 88-91 FPR for the 92-95 one. The newer FPR runs the rail at about 5 psi higher pressure. I have failed to do this on my swap thus far, I'm gonna try swapping out the regualtors and see what kinda difference it makes. It may need the extra fuel on my 1.6L but not on your 1.5L.....get what i'm saying?

 

Just out of curiosity, what's the advantage to doing all of this work getting things to fit together over just getting the entire z6 engine and ecu and dropping it all in? will the z6 block not bolt in?

 

using the sohc vtec manifold is not needed. i'm running my mini me w/ p28 ecu right now w/ my non vtec 1.6 si manifold. 94 ex head. mr gasket gaskets... i tried the fields sfc boxer 2 vtec controller. and my recc is get a vafc or a p28 w/ harness conversion. i've been running my setup for a year now and still can't work out all the bugs. bought a b16 instead. that's my reccomendation to you too. get a b16. it's better in the long run....

 

Thump77: Swapping a Z6/Y8 head onto an A6 block effectively gives you a high compression soch vtec engine. Most sohc vtec heads can be had for 10~200 bucks. Plus pulling a sohc head and swapping can be done in an afternoon, binding that you have all the correct parts.

A6 block + Z6 head = 10.4:1 compression
A6 block + Y8 head = 11:0:1 compression

This increased compression, gives the engine more power over all. I've fonud that my min-me is alot mor enjobale to drive around town with the added torque, for the higher c/r. The Z6 will bolt in just fine, though you have to use the 88-91 tranny/engine mounts, also the 88-91 transmission.


Nismo240sx1: Some of us don't want to go through the whole trouble of swapping in a b16, which costs at least $1500. Granted it would be a better(performance-wise) engine in the long run. I considered swapping a B16 over the Mini-me, but just couldn't justify the price and time constarints for my daily driver. The total cost of my mini-me swap was about $300, you'll spend more than that just on mounts for a B16 swap.




[Modified by Speed PHreak, 3:01 PM 6/14/2002]

 

you are right about cost wise, and i do like my mini me it's just not enough. btw i got my mounts for 175$

 

I hear ya Nismo, my "other" car more than makes up for my somewhat lacking daily driver.

 

Would you guys recomend a A6 head swap onto my DX block I have everything from the A6, motor and all, but my DX block burns a lil oil, I have excellent compression, so It may be my head gasket more than anything but do you think it would be stuipid to do this im going to do a ZC swap but I might do this for money reasons.

 

to make your distributor work you need to make a custom bracket to make it fit. If you need parts for the mini-me swap, I have a fuel rail, fuel pressure regulator, injectors(you can have the intake manifold) and a Field VTEC CONTROLLER (STILL IN BOX) all for sale. E-Mail me at Jason91CRX7@yahoo.com if interested or you have any other questions.

 

I'm hearing that the 96-00 Y8 head is a better choice since the 88-91 Si distributor will bolt up, unlike the Z6 that requires some rigging of the distributor. Will the 88-91 Civic/CRX Si injectors fit in the intake manifold if you use the one on the vtec head considering that it came with one? If not, then will the 88-91 Si manifold fit the newer Y8 head without any machining?

 

does the mini me swap use the stock A6 timing belt?

 

i am going to confirm that since i havent seen that answer here a lot...
i got a 93 Si intake manifold running off a PM6.... tru an injector resistor and i am using the 93 inyectors... THEY DO WORK FINE!!!!
hope this helps the search button!

 

What about the oil control jet on the block? I heard you have to pop that out becasue the z6 head has one already.

http://crx.honda-perf.org/articles/z6swap/z6swap.html

SpeedPhreak - TurboMafia? is your mini me turboed. If so let me know I'm doing the same thing.


[Modified by gtcali, 6:16 PM 7/12/2002]

 

Nah, i've got 2 cars. The mini is my daily driver. My turbo car is my LS swapped CRX.

www.homemadeturbo.com Jeff's(ABAZ) site has a turbo mini-me on it if you want the low down on turbo-ing your setup. He runs a Zdyne SECU to tune all of his stuff I think. I run one too, i'd really recommend getting one if you're thinking of F/I.

Later

~steven