grg3135

hey guys. quick question for you. I have a 95 cx hatch with the stock d15 non-vtec. I also have a built 12:1 compression gsr in an ek coupe. Its really depressing to drive the built car one day and then switch back to the hatch. The hatch is my dependable DD that I take whenever I travel long distances so I dont need it to be super quick but I would like a little more power. Also, I dont really want to spend more than 500 bucks for the motor (plus labor). Again, its a dd so i dont want much, no b-series, no turbos, none of that, just a stock swap. Heres where the questions come in
1) Would a z6 or y7/8 even be worth the money/trouble in a comparison with the power of my current motor?
2) would I just be able to swap the motor/harness/trans/ecu and call it a day? I wouldnt need new linkage/axles/etc, right?

Thanks guys

95ProjectEJ1

iTrader: (5)

I honestly dont think switching from the D15 to the D16z6 is going to be much different at all. Definitely not worth spending $500 IMO.

BryanM.

iTrader: (1)

A D16Z6 may be worth it. I am pretty sure that all CXs have latent VTEC wiring from the ECU up to the conector group near the battery (mine did). So all you will need is the main engine harness form a D16Z6 and it's ECU. The rest is 100% compataple. Good luck doing this for $500.

grg3135

thanks, thats exactly the kind of opinion i was looking for. How about the y7/y8?

grg3135

Well, I figure i can get the parts for around 500 and then worry about the labor. I have a couple of buddies that could probably do it for me for a few hundo

grg3135

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mcvtec92 &raquo;</TD></TR><TR><TD CLASS="quote">A D16Z6 may be worth it. I am pretty sure that all CXs have latent VTEC wiring from the ECU up to the conector group near the battery (mine did). So all you will need is the main engine harness form a D16Z6 and it's ECU. The rest is 100% compataple. Good luck doing this for $500.</TD></TR></TABLE>

Alright, thanks man. What are the gains from the z6 to y7/y8? I could look it up but if someone already knows it that would be super.

BryanM.

iTrader: (1)

Stick with an OBDI engine. I beleive the Z6 makes 125hp at the crank.

grg3135

what does it matter if I dont plan on building/tuning it? id just need a conversion harness, right? I just want to swap it out leave it. If I build this one too then Ill need to buy a third car to use as a dd.

grg3135

thanks for the info, thats like 30 more than im making now (d15 non-vtec is 90, right?) or was it 110, i looked it up a long time ago and dont remember

BryanM.

iTrader: (1)

Staying OBDI is just a little easier and cheaper since you could just use a stock Z6 harness or even mod the B7 harness. Sounds like you have a lead on a Y7/Y8...

djay86

**** if you have a CX, anything would be an upgrade, even a d15b7. the cx engine only makes 70hp.

BryanM.

iTrader: (1)

And a massive 90lbs-ft!

Bense

if you have the 8valve cx engine, I'd try to just swap the heads and get an ex trans if i were you.


that will be your most bang for the buck.

lv6l

I have a 94 civic CX myself and have used the stock CX motor and tranny. It is somewhat slow but I believe it is due to the long-gear transmission. I switched out and put in a JDM D16A(USDM D16z6) along with that I used its' Si tranny which are very similar if not the same as the USDM Si/Ex tranny. The result in performance is a world of difference; a lot of this I believe is due to the shorter-gear transmission. It runs a lot faster and better in everyway. I got the tranny+motor from H Motor Online for 450 US dollars about 3 years ago. So I would think prices have gone down a bit. Stick to OBD1. Use 92-95 P28ECU. Car runs great with excellent gas milage. As for VTEC goes, if I can remember right the 92 and 93 Civic CX hatches you can wire VTEC from solenoid into passenger's harness; from there it will find itself into the ECU. Somehow the newer 94 and 95 Civic CX hatches does not have that wire that goes from passenger's harness to ECU. Easy way to fix this is wire VTEC straight from solenoid through firewall and into ECU.(This is what I had to do) Everything else will bolt up perfectly. Bottom line, in your case I recommend you running one of these two motors, if you cannot find a good condition D16z6 go with the JDM D16A; same motor just with lower milage. If you have any questions feel free to ask me. Good luck.

Bense

yes, if you put a z6 engine + trans in a cx, you'll unload in your pants when you feel the results of 125 hp.

Archidictus

This is me biting my tongue.

ke98248

iTrader: (1)

Yikes.

big-cat

i would see if you can find a y8 or z6 tranny lying around, that is your best bet.

and if you have a d15b8(came in the eg cx model) i would deff swap to a z6, all you will need is harness ecu and all the components on the motor of course.

hondamark35

likely the least expensive way to get something that feels better is if you can find a y7 long block, and swap the manifolds from a y8. the manifolds have a lot to do with the power that the y8 has over the y7. i have this setup in an ej6 coupe and i can still get 40mpg on the highway.

last time i looked people like to get rid of the y7's at a pretty low price esp if you can pick them up.

it won't be a high-comp. GSR but in the lightweight cx coupe it'll feel pretty peppy.

lv6l

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by big-cat &raquo;</TD></TR><TR><TD CLASS="quote">i would see if you can find a y8 or z6 tranny lying around, that is your best bet.

and if you have a d15b8(came in the eg cx model) i would deff swap to a z6, all you will need is harness ecu and all the components on the motor of course.</TD></TR></TABLE>

i use my stock 94 civic cx harness and it works perfectly. my motor came with a jdm harness thats why i had to use the stock us cx one. everything hooked up fine. just vtec wire was missing but that can be easliy wired up seperately. save some money use your cx harness.

grg3135

Alright, thanks for the input everybody. I really appreciate it.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondamark35 &raquo;</TD></TR><TR><TD CLASS="quote">likely the least expensive way to get something that feels better is if you can find a y7 long block, and swap the manifolds from a y8. the manifolds have a lot to do with the power that the y8 has over the y7. i have this setup in an ej6 coupe and i can still get 40mpg on the highway.

last time i looked people like to get rid of the y7's at a pretty low price esp if you can pick them up.

it won't be a high-comp. GSR but in the lightweight cx coupe it'll feel pretty peppy. </TD></TR></TABLE>

its actually a hatch, but i know what you mean. Im not looking for something FAST, I already have a fast car. i just want something that isnt SLOW lol. That sounds like it would be a good idea, especially as far as $$$ goes.