Ok 1st off i know im going to get alot of **** for not looking around but its alot easier to find the info if its all in one post plus i have done research and am some what confused so please help me and not knock on me for not finding it on the forums and with that said.....

So i want to do the zc because its basic cheap and decent potentional for the price so heres the issues at hand i have a dpfi civic believe its a dx yes im honda challenged now i read some where that the dx tranny directly bolts up to the zc dohc model which i want then some where else i read the opposite and for the wiring i got all my info here http://www.zcspeed.com/wiring.htm i just want to make sure i got all my info correct before i get going on this so any help would be appreciated and yes i am looking for the motor still thx in advance

 

The ZC will directly bolt into your civic. You will need to convent your DPFI to MPFI inorder for the zc to reach its full potential. You can use your dx tranny as all d-series trannies are interchangable among d-series blocks.

 

thats what i thought but on some guys site he said it couldnt isnt there a zc that came in a teg too maybne thats what hes talking about and for any one thats done the dx zc swap is the wiring in that link above correct and i know i should go for the jdm si tranny but for now i just need it for a daily driver with a little it of go

edit o ya i forget what ecu recomendation i know the stock si one will run it actually i think even the dx one will but whats the best one for it?


Modified by myhondasrusty at 8:57 PM 7/19/2006

 

yes that wiring is perfect

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by myhondasrusty &raquo;</TD></TR><TR><TD CLASS="quote">i read some where that the dx tranny directly bolts up to the zc dohc model which i want then some where else i read the opposite and for the wiring i got all my info here http://www.zcspeed.com/wiring.htm i just want to make sure i got all my info correct before i get going on this so any help would be appreciated and yes i am looking for the motor still thx in advance</TD></TR></TABLE>
yes, the ZC will bolt right up to the DX transmission - that link you have is wiring we came up with about 8 years ago before anyone had instructions for the ZC into the DX - it has since been updated to:

http://www.zcspeed.com/DXZCwiring.pdf

the best ECU to use is either the JDM DOHC ZC PM7 or the USDM 88-89 Integra PG7 - Si PM6 ECU will also work, just has lower fuel cut-off - DX ECU will not work

 

*another shameless plug*

Look at my project thread.

 

now i read some where that one of these ecus had a cut off of 112 believe its the pm7 and whats the difference between the pg7 and pm7

 

now i imagine all this info is the same no matter if u go with the dohc or the sohc zc correct i dont want to like buy a dohc zc and find out it wont fit or be direct bolt in also should me headers bolt up or am i going to need a different exhaust as far as i know its all direct bolt in but i dont want to have any suprises you know

 

IT IS a direct bolt in, as long as you use your transmission unless you get a ZC transmission with YOUR zc that has a intermediate shaft to use IT. The engine imo overall is as bout as fast as a b18, but your not having to pay for swap mounts/shift linkage basically, and other stuff you would need if you did a b18 swap i would imagine. I called it the "Super D series" or the king of d series my friends would say, but it will always be a oddball and thats why i don't own mine anymore even though it was extremely clean, and now that i look back on it and think about it i would have gotten a SOHC ZC instead and used maybe a Y8 vtec head on it with a supposed 12:1 compression i believe? is what that block yields with those pistons, which in turn would be faster then the dohc zc i would assume.

 

alright well eventually i probably will turbo it any ways so id probably be better off with the dohc but thx for the help wish me luck heh now i just need to find one

 

Just make sure it isn't a "brown top" zc (came in 86-89 JDM Tegs), that is not a direct bolt-on by any means, that may be what the other guy was talking about.

 

doh isnt the brown top the dohc 137 hp one if so what else is needed i think i might just order from this site http://www.jspecautosports.com...d=728 now this one isnt the teg one correct and is the gearing in the jdm tranny lower then the usdm si tranny i know the shafts are suppose to be more balance and have less torque steer and still wondering which ecu has the 112 cut off also i found a link i think it was on this forum but lost it where it listed what axles to put in the zc tranny etc if any one can point me in that direction

 

No, the brown top one is slightly underpowered vs. the one you have in the link here. I also think they have the HP a little overrated on the web site. Expect to get anywhere from 120-130HP from a ZC stock, but they're really easy and inexpensive to mod. You als will need 90-93 Integra axles if you get the halfshaft with the transmission, otherwise stock 88-91 Civic/CRX Si axles will work (with a stock L3 transmission), but you will get torque steer from the unequal length axles. Not sure on the ECU question, but you will want to make sure you're getting a PG7 (Better) or PM7 (Best) out of a MANUAL vehicle. Sometimes people will give you the automatic ECU and you car will run like crap. And finally, this motor came stock in the JDM civic Si's from this generation. If you are serious about this engine, check out http://www.thezcr.com, there is a ton of info on ZC's there.

 

ya this is probably the most interesting motor to me but now some one i know is telling be go d16y6 im kind of confused if i need a wiring harness or not since mines dpfi i might be able to get everything ecu pm7(btw how can i tell im gettin the right one) tranny axels and engine for like 600 am i gonna need an si harness or will the dx work it seems as i look around more i get more confused bah one site says no one says u need the zc harness is this the best direct bolt in motor in you guys opinions which eventually will be turboed or any other suggestions thanks for all the help


ps thatnks for the site wizco looks to be very helpful


Modified by myhondasrusty at 10:39 AM 7/22/2006

 

also again ya im sure your all getting irritated but since im going dpfi to mpfi will a si wiring harness work with the pm or pg7 and all this stuff shoud interchange im assuming and on a post note is the b16 all that much mightier thats its worth almost twice the price to do the swap for an extra 30 hp keep in mind i probably will do a full built boost eventually opinions?

 

If money's not a problem, go for the B-series. Otherwise, you can get "about" the same results from a built D-series and your money will be spent on pistons, valve train etc instead of motor mounts, shift linkage, etc. Search the threads on how to do the dpfi to mpfi swap, I think you should be able to use the same harness but have to re-pin some things. I've never done it myself so I can't say for sure. For ECUs, you just need to look at the sticker on the shell of them, they will have the three-character identifier in the middle of the code printed on them (try pulling yours out and finding your code first)

 

Si wiring harness will not work, you need to modify existing harness

 

hmm the Engines you all call Zc's , are 1.6 16v DOHC ones right?

Maybe this is a really stupid question but why don't you call them by their names? D16z5's & D16a9's ?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by puk &raquo;</TD></TR><TR><TD CLASS="quote">hmm the Engines you all call Zc's , are 1.6 16v DOHC ones right?

Maybe this is a really stupid question but why don't you call them by their names? D16z5's & D16a9's ?</TD></TR></TABLE>

because mine says this, and this is therefore the name I gave it:



there is also the SOHC ZC and the DOHC ZC. SOHC has like 15 less horse than the DOHC

 

seeeeeeeeeeriously, if you want to do a ZC swap, go to http:www.thezcr.com, you will find any info you need for the ZC. There are many different types of ZC engines, the most common ones have "ZC" stamped right on them (hence the name)

 

Daaaamn weird, on all of ours ( europea n ) it sais d16a9 or d16z5 or pancake .. or anything.. not ZC

but I understand you know

 

money isnt an issue but id think the zc would be better because to turbo the b16 id have to drop the compression where the zc can just bolt up a turbo low psi of course till its built where i was reading though it said you need to wire the zc harness to the injector resistor im assuming if this was si it would be direct bolt in but since its not i imagine ill need to find a way to wire my d series to the injector resistor box

 

look at this link http://www.zcspeed.com/DXZCwiring.pdf it tells you the entire process. And yes a D16a9 and D15z6 are euro/asian ZC models , but not that common here in the states.

 

zc's love boost. that is all.