i HAVE A CRX HERE AND ITS GOT SOME BAD RINGS. i DUNNO WHY BUT ONE MECHANIC SAYS THAT THERE WAS nos USED ON THE ENGINE AND THE PERSON i BOUGHT IT FROM SAYS THEY NEVER USED nos ON IT, BUT anyway, sorry for the caps lock, i just noticed. So what is the big difference between the crx Si motor and the ZC SOHC motor? Are all the parts interchangable? They lok like the same thing just this one loves to smoke and burn oil. Otherwise, does anyone have a decent explination and when I go to replace this engine, should I continue to get the same motor but in better condition or should I get a different ZC motor for the vehicle? Thank you

 

d16a6: 106hp. cheap motors, tons of parts avail.
zc: 125-130hp. cheap. jdm, so not all the parts are exact as us. example, they use 88-91 prelude timing belts.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civicandy &raquo;</TD></TR><TR><TD CLASS="quote">zc: 125-130hp. cheap. jdm, so not all the parts are exact as us. example, they use 88-91 prelude timing belts. </TD></TR></TABLE>
that would be a DOHC ZC - the SOHC ZC is basically the same as the D16A6, but 118hp - all internal parts like rings, bearings, gaskets, water pump same as D16A6 Si engine

 

zcs are whats up when it comes to sohc.. i have one in my civic

 

same motors. difference is in the cam

everything else is identical, pistons are stamped PM6, same rods as any other 1.6, head has the same stamp as an a6 head. the only difference between the 2 motors is that the sohc zc has a better cam

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by KingDanOne &raquo;</TD></TR><TR><TD CLASS="quote">jdm D15B's are whats up when it comes to sohc.. i have one in my civic
</TD></TR></TABLE>
rephrased

 

otherwise the mini me would offer a cheap solution as well

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jlicrx &raquo;</TD></TR><TR><TD CLASS="quote">that would be a DOHC ZC - the SOHC ZC is basically the same as the D16A6, but 118hp - all internal parts like rings, bearings, gaskets, water pump same as D16A6 Si engine</TD></TR></TABLE>


That is correct. The only difference between the sohc zc and d16a6 is the cam, the zc has a more aggressive cam. (consensus on honda-tech supports that)


All the parts are interchangable.

 

i stand by what i zc's are the ****!!!!!! my homies d15 gets killed by my zc 3 out of 3 times... he even has vtec, but for some reason i pull on him!!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 89-civic-DX &raquo;</TD></TR><TR><TD CLASS="quote">
All the parts are interchangable.</TD></TR></TABLE>

 

There needs to be a sticky on the differences on zc motors. dohc vs sohc etc.....

All the parts between the single slams are interchangeable, but NOT the same per say. The exhaust valve seals and seats and springs are all different part numbers from the A6. Hence the exhaust side of the head and the cam are different parts for different motors but all interchange. SOHC to SOHC, that is. The ecu has a slight fuel map difference also, just fyi.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SIred91 &raquo;</TD></TR><TR><TD CLASS="quote">There needs to be a sticky on the differences on zc motors. dohc vs sohc etc.....
</TD></TR></TABLE>

yeah, was thinking about it. ppl need to be educated on the SOHC ZC after so much talk for years about JUST the DOHC ZC as the only ZC out there.

but i want to start with a decent thread about it, not one that started off with half the question in ALL CAPS.

i might just start with the previous thread that you basically admitted youre a cheater.

 

i would just re-ring your current motor. you will feel a power increase with the added compression and this would be the most cost effective for performance choice IMO

 

Dude, you didnt just call me a cheater did you. Can you not f-in tell that i type with 2 fingers? Guess not, but anyway, thanks for all the input people, i really appreciate it. I did not know the only difference was just a milder cam, I mean thats nothing compared to the rest of the engine, too bad the one i have smokes, or I'd just replace the cam and be done with it, boooo. LOL

 

Got a quick question, will a D16A6 distributor work on a sohc ZC, meaning will I have to rewire it at all? I think I remember something about this, but it might only be on the dohc ZC.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crex23 &raquo;</TD></TR><TR><TD CLASS="quote">Got a quick question, will a D16A6 distributor work on a sohc ZC, meaning will I have to rewire it at all? I think I remember something about this, but it might only be on the dohc ZC.</TD></TR></TABLE>
same distributor. You rewire on the DOHC ZC.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jlicrx &raquo;</TD></TR><TR><TD CLASS="quote">
that would be a DOHC ZC - the SOHC ZC is basically the same as the D16A6, but 118hp - all internal parts like rings, bearings, gaskets, water pump same as D16A6 Si engine</TD></TR></TABLE>

 

mini me is the best cost effective choice, high compression with d16z6 head, yeild as much if not more than the zc dohc

 

theres no way a sohc zc would beat my d15b

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by iphatcrxi &raquo;</TD></TR><TR><TD CLASS="quote">theres no way a sohc zc would beat my d15b</TD></TR></TABLE>
Is yours special for some reason??

 

yea its got a zex 59300 cam haha

 

i used to have a fulley built d16, je pistons 11:5:1, pauter connecting rods, fulley built ect, i imagine it would have made 160+ but it needed a better ecu and tune to actually run right, but it was fast

 

zc's are japan! whoot JDM fo, and i got a friend who put a zx in his crx si hatch, and he lovesi much better, But the parts for a zc are a bit harder to find.. but 2 cams is better than one. IMO

 

i had a zc one time. i'm glad its gone. i'd take a d16 or mini me over a zc any day. i'm a big fan of parts i can get a junk yard or auto parts store. i'm sick of having jdm stuff that breaks and i can't find parts for it

 

Don't let some shop con you into buying more junk and having 1 guy install it with ease...

I personally think you should buy a Sohc ZC off hmotorsonline or osakajdmmotors, cause i had experience with both. The motor install you can do with your friends it is so easy, can be like a fun little weekend project, or if you wanna get it done in a day and have good mech skills then you will.

When you put back in the motor, it will go back in just like the old one came out, as long as it is a REAL Si, putting the motor in is just like lego's, it's easy if you take your time and don't rush it, if you do though i gurantee your gonna hurt your hands regardless of wearing gloves, i know i have.

 

hey contender, thanks for that info. I have pulled out many engines, i just haven't put them back in, so I'm waiting to get a price for a new ZC SOHC motor, as I just dont feel like it would be a cost effective way to rebuild the one I have since it smokes like a bitch, otherwise, i would just rebuild, but for now, i think it will be cheaper to buy new one and just do it that way. So that mild cam gives it that much more HP?