i was wondering the EXACT differences between the usdm integra version of the zc and the jdm version of the zc. ( i have done an HT search)

 

I'm pretty sure the cams and the mounts are different on the dohc d16a1 vs the dohc ZC. There are probably more diffs but those are the first that come to mind.

 

I agree with trigger69 that the cams are different but the mounts are the same. some of the other differences are that the d16a1 you cannot use SI pistons and rods to build the motor you have to use the d16a1 parts that are availible for the motor as with the DOHC ZC you can use SOHC SI pistons and rods to build the motor. That is pretty much it as far as i know. good luck! And i hope this helped you any bit.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by cbrodac0424 &raquo;</TD></TR><TR><TD CLASS="quote">I agree with trigger69 that the cams are different but the mounts are the same. some of the other differences are that the d16a1 you cannot use SI pistons and rods to build the motor you have to use the d16a1 parts that are availible for the motor as with the DOHC ZC you can use SOHC SI pistons and rods to build the motor. That is pretty much it as far as i know. good luck! And i hope this helped you any bit.</TD></TR></TABLE>

The mounts are different, and why couldn't you use Si internals?

 

i think he means for the head the head is the same things of an 88-89 teg and the block is the same but with more agressive pistons and the r/s ratio is different. The head is mildly ported with slightly more agressive cams and the head has larger ports and intake mani

 

what about the hook up procedures, mounts and electronics. im wondering becasuse i can get the US integra zc for almost nothing. i can always do the porting and the cam stuff to enhance it, i just don't want a beater engine on my hands.

 

^^^ :Looks at sig above:

90 civic si d16z6 sohc vtec, catback, apexi controller

I think I'd just keep the single cam

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by trigger69 &raquo;</TD></TR><TR><TD CLASS="quote">i was wondering the EXACT differences between the usdm integra version of the zc and the jdm version of the zc. ( i have done an HT search)</TD></TR></TABLE>
first off, the D16A1 is not a ZC - almost everything on the engines are different, including block, head casting, camshafts, timing gears, timing gear cover, valve cover, intake manifold, exhaust manifold, water pump, timing belt tensioner, oil pan, oil pump pickup, some crankshafts depending on year, pistons and rods (in some years) and front engine mount - the only things the same are the distributor, cylinder position sensor and most of the valve train

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jlicrx &raquo;</TD></TR><TR><TD CLASS="quote">first off, the D16A1 is not a ZC - almost everything on the engines are different, including block, head casting, camshafts, timing gears, timing gear cover, valve cover, intake manifold, exhaust manifold, water pump, timing belt tensioner, oil pan, oil pump pickup, some crankshafts depending on year, pistons and rods (in some years) and front engine mount - the only things the same are the distributor, cylinder position sensor and most of the valve train</TD></TR></TABLE>

^ Correct aside from the drivetrain. Unless you've got a valid source to prove otherwise. But good post nonetheless. - Darrell

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DOHCZCCRXSi &raquo;</TD></TR><TR><TD CLASS="quote">

^ Correct aside from the drivetrain. Unless you've got a valid source to prove otherwise. But good post nonetheless. - Darrell </TD></TR></TABLE>
Darrell - i would suggest that if you don't want to believe me, you should go out and get a D16A1 and a ZC and tear them apart and compare them - i have and these are the differences - unlike you, i didn't just read about it on Honda-Tech and post a reply - i don't post replies on things i don't know the answer to and i don't like the insinuation that i don't know the differences between the two engines

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jlicrx &raquo;</TD></TR><TR><TD CLASS="quote">Darrell - i would suggest that if you don't want to believe me, you should go out and get a D16A1 and a ZC and tear them apart and compare them - i have and these are the differences - unlike you, i didn't just read about it on Honda-Tech and post a reply - i don't post replies on things i don't know the answer to and i don't like the insinuation that i don't know the differences between the two engines</TD></TR></TABLE>

Before you shoot your mouth and temper off for no good reason, let me appologize, I was sure it said DRIVETRAIN. Didnt see valvetrain, but that in no way gives you any good reason to spout off at me and make assumptions when you have absolutely no knowledge of what I do and do not know. Now, I was simply asking where you sourced your information from, but if you wanna be an asshat about it, thats fine with me . - Darrell

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 91dxhatchswaped &raquo;</TD></TR><TR><TD CLASS="quote">i think he means for the head the head is the same things of an 88-89 teg and the block is the same but with more agressive pistons and the r/s ratio is different. </TD></TR></TABLE>

WTF?!?! How can a piston be "agressive"?

 

WTF?!?! How can a piston be "agressive"? [/QUOTE]

He might be thinking that it is a higher compression ratio? That what i was thinking.
And to (mahatma) i never said that you could not use the SI internals if you where to read what my post stated i said that you could use the SI internals on the DOHC ZC so you should read before you post

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by cbrodac0424 &raquo;</TD></TR><TR><TD CLASS="quote">I agree with trigger69 that the cams are different but the mounts are the same. some of the other differences are that the d16a1 you cannot use SI pistons and rods to build the motor you have to use the d16a1 parts that are availible for the motor as with the DOHC ZC you can use SOHC SI pistons and rods to build the motor. That is pretty much it as far as i know. good luck! And i hope this helped you any bit.</TD></TR></TABLE>

 

guys guys don't be stupid, just delight in the fact that you all helped share info. thanx for the info. to the man with the idea that i should keep the 16z6. explain why and what qualities or hinderances does it offer that are as good or worse as the zc other than vtec and one less cam. i mean i really think that two cams are better, but win me over because im tired of how slow my car is. the vtec is wimpy too. even with a vtec controller it is still not even a quick motor. let me run something past you guys. would a 16z6 have a less agressive cam from one that came from an automatic tranmission? just wondering. anyways i need some convincing other than that i want a zc because i don't want a b series and i want to keep my L3 si tranny that i rebuilt with my own hands and 20 hrs of hard work.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by trigger69 &raquo;</TD></TR><TR><TD CLASS="quote">anyways i need some convincing other than that i want a zc because i don't want a b series and i want to keep my L3 si tranny that i rebuilt with my own hands and 20 hrs of hard work.</TD></TR></TABLE>
If you want to keep your tranny, you will need the JDM DOHC ZC motor. The D16a1 USDM Integra motor will NOT bolt to your tranny or into your car. If you take the money you would spend on putting a different motor in your car and spend it on the motor you already have, it will be faster than the ZC. D16z6 motors are a good motor to start with and can make some good HP with a few mods. Personly I would go with the D16z6 and a turbo kit

 

i call the d16a1 or the d16a3 the almost zc motor. looks a lot like it but damn sure aint the same motor. but they are fun in a 1gen crx or a 3 gen hatch.

 

thanks guys what all motor options would you advise? for my z6

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by trigger69 &raquo;</TD></TR><TR><TD CLASS="quote">thanks guys what all motor options would you advise? for my z6</TD></TR></TABLE>

A turbo

 

that is not quite the all motor suggestion. i know nothing about turbos, fuel management systems and controling boost. Raw engine performance i understand completely. what set ups for all motor on a z6 would you guys suggest if i were to keep it.

 

a turbbo and talk to hondaddict on here he will help you out. only guy i trust to buy my parts from.

 

whats up jli. I am a HT lurker haha. Good to see a familiar face from ZCR over here though. jli is right on the money with the differences. that guys is my damn hero haha.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by trigger69 &raquo;</TD></TR><TR><TD CLASS="quote">that is not quite the all motor suggestion. i know nothing about turbos, fuel management systems and controling boost. Raw engine performance i understand completely. what set ups for all motor on a z6 would you guys suggest if i were to keep it.</TD></TR></TABLE>

turbos aren't difficult to understand at all. turbo setups i should say. best bang for your buck as well (home made turbo setup). pick up the book, "maximum boost" by corky bell to help you build a foundation of knowledge.

 

make that three lurkers over here from the zcr.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by cbrodac0424 &raquo;</TD></TR><TR><TD CLASS="quote">Big wings look great...........if you drive a Boeing 757 </TD></TR></TABLE>

Chris, that is the dumbest quote I have ever heard!!! WTF???

Anyway, Maxmum Boost is an awesome read!!! I learned so much from that book it isn't even funny, get a copy if your even thinking about going turbo and read it cover-to-cover.