I was woundering what motor would preform better in my 89 SI CRX. Right now it has the D16A6 and I have a ZC motor if I feel the need to swap it out. I have no idea what horse power differences are, or witch one can be built up bigger. Oh and the ZC motor is a 1.6L DOHC. Not sure what the numbers and letters for it is, cause on the block it just says ZC.

 

What are your plans for the car?

Daily driver? --> drop in the ZC with some bolt-ons, it'll give you some nice zip.
Auto-x or FI? --> Keep/Build the D16A6. Better aftermarket support for a build.

Or sell the ZC and dump the money into the D. Not to say there isn't any aftermarket stuff for the ZC, you just have to dig around for it more.

HP differences stock: D16A6: 106 HP, ZC: 130 HP. This is assuming your ZC is a blacktop version, if your valve cover is brown, your motor is poo-poo . FYI you can also tell what year it is by looking at the block between the #2 and #3 exhaust ports.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wiZCo &raquo;</TD></TR><TR><TD CLASS="quote">What are your plans for the car?

Daily driver? --&gt; drop in the ZC with some bolt-ons, it'll give you some nice zip.
Auto-x or FI? --&gt; Keep/Build the D16A6. Better aftermarket support for a build.

Or sell the ZC and dump the money into the D. Not to say there isn't any aftermarket stuff for the ZC, you just have to dig around for it more.

HP differences stock: D16A6: 106 HP, ZC: 130 HP. This is assuming your ZC is a blacktop version, if your valve cover is brown, your motor is poo-poo . FYI you can also tell what year it is by looking at the block between the #2 and #3
exhaust ports. </TD></TR></TABLE>
good man

I would advise all to read this and remember to post somthing like this when asked an open question it'll help everyone learn more and be alot more worthwhile then swap a zc y0~111!

I am a huge fan of the d16a6 for many reasons one of them dirt cheap and tons of parts.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Capt. Blonde Beard &raquo;</TD></TR><TR><TD CLASS="quote">one of them dirt cheap and tons of parts.</TD></TR></TABLE>

x2. Personally, I got an SOHC ZC. It's basically an A6. Some **** but with a much better cam. If you blow something up, just replace the **** that broke super cheap.

 

James,

Here you go:

http://hybrid2.honda-perf.org/tech/4gtech.html
http://hybrid2.honda-perf.org/tech/zcinfo.html

Engine Mounts:-----1988-91 CRX/Civic
Timing Belt:-----1988 Prelude 2.0
AC Compressor / Parts:-----1989-91 CRX/Civic
Throttle Body:-----1988-91 CRX/Civic
TPS:-----1988-91 CRX/Civic
ECU:-----1989-91 CRX/Civic Si, 88-89 Integra 5-spd, 89-91 ZC
Intake:-----1988-91 CRX/Civic
Headers/Exhaust Manifold-----88-91 CRX can be used port will not be perfect---Ideal is DC 86-89 Integra Top with 88-91 CRX downpipe---(I use port matched GUDE 4-1 Header)
Plug Wires:-----1986-89 Integra
Spark plugs:-----1986-89 Integra or 1988-91 CRX/Civic----- NGK BCPR6E-11
Distributor Cap:-----1988-91 CRX/Civic 1988 Integra
Distributor Rotor:-----1988-91 CRX/Civic 1988 Integra
Head Gasket:-----1988 Prelude
Intake Gasket:-----1988 Integra
Exhaust Gasket:-----1988 Integra
Water Pump:-----1989-91 CRX
Oil Filter:-----1988-89 Integra-----Fram PH3539A
Oil Pan Gasket:-----1988-91 CRX/Civic or 1986-89 Integra
Flywheel from 1989-91 CRX Si may be used

Transmissions:

4 speed 88-91
5 speed DX 88-91
5 speed Si 88-91
5 speed ZC 88-91
ZC Pressure Plate:-----1989 Civic DX
ZC Clutch Disk:-----1989 Civic DX

The clutch should match the year of the transmission you have, 88
if it is an 88 and your choice of 89 or 90-91 if the transmission is
89 or later.

 

IMO I always thought the A6 was better because of the aftermarket support, plus I outrun a few DOHC ZC's with my 1st A6 but anyways. Ive always heard never done or know any1 that has done is swap the rods and pistons out of the ZC and put in the A6 and BOOST and ur good to 350 or so HP. And I might be wrong but I always thought there was only 5hp difference between the A6 & DOHC ZC. wrong??

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nudvl &raquo;</TD></TR><TR><TD CLASS="quote">IMO I always thought the A6 was better because of the aftermarket support, plus I outrun a few DOHC ZC's with my 1st A6 but anyways. Ive always heard never done or know any1 that has done is swap the rods and pistons out of the ZC and put in the A6 and BOOST and ur good to 350 or so HP. And I might be wrong but I always thought there was only 5hp difference between the A6 & DOHC ZC. wrong??</TD></TR></TABLE>

True on support, the 350 HP limit is probably far-fetched, but with a good head setup as well as beefier internals you can get pretty respectable numbers with an A6.

And yes, there is roughly a 25 HP difference between the two (I think you're thinking of the SOHC ZC, it benefits from a more agressive camshaft than the A6 --&gt; slightly better HP), not massive gains, but definitely better as a stock motor.

Plus, I rock the DOHC ZC so it's therefore pimptastic .

PS: Wow, too many Wisconsinites in one thread! :cheese: :Brett Favre:

 

I personally wouldn't waste my time replacing an A6 with a SOHC ZC. Replacing with a DOHC ZC is the better choice.

Stick with the A6, throw is a better cam and there you go.

 

noob q, but since the cam outa the sohc zc is so much better, why not put it into the a6?? i was also wondering on this same subject on witch is better, my car is a dd, and maybe sometimes a auto-x, but we shall see, i currently have 2 a6 engines.....

 

Delta cams in tacoma washington makes a fantastic A6 cam.

 

i did a zc swap in my hatch and i love it... but i did come from a pos d15b2 lol... im going to be goin all motor with ITB's... getting my head p&p over the winter and this is my DD/race car for the moment... im going to get a rex and b-series turbo it...

 

d16a6
sohc zc
dohc zc

all 3 are good platforms its about cost. dohc zc's are good but i always seem to leave them in the dust with my mild sohc zc set-up.but for boost i would go with either the zc sohc or a6 same motor but a better bang for the buck for me.

 

d16a6 is the stock si motor? i'm using my car as a DD and my motor has about 200k and i wanna replace mine...where do u guys find a good cheap low mileage ones?

 

on our classifieds and hmotorsonline.com i think is the website. sohc zc long block on there is 400 same as d16a6 just a tad better cam which give its a slight bump in hp. dohc zc's go for 800 i think on there. but check the classifieds you always see atleast one or two. aslong as people swap out there sohc's for dohc's you find one for cheap.

 

[QUOTE=crazykamper]noob q, but since the cam outa the sohc zc is so much better, why not put it into the a6?? QUOTE]

im also a noob with the same question. i tried searching, but no luck

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by gator88 &raquo;</TD></TR><TR><TD CLASS="quote">[QUOTE=crazykamper]noob q, but since the cam outa the sohc zc is so much better, why not put it into the a6?? QUOTE]

im also a noob with the same question. i tried searching, but no luck </TD></TR></TABLE>

c'mon man, this has been beat to death and brown holed. Yes, the sohc zc has a better cam, if you can get one cheap, then do it. if its gonna be a pain in your ***, then get an aftermarket cam, they are much better than thinking the zc cam will make you faster. I went from an A6 to the ZC cause of a rod kind of showing its face through the block...but I digress.....

cliffs:

if you want a better cam, get the zc if you can find it for nothing, but if your gonna pay either way, go for a good aftermarket...i.e. exso or gude or crower etc....

 

sorry, i knew it was better just didnt know if they were compatible. sorry again for the Q but thanks for answering

 

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


I am a huge fan of the d16a6 for many reasons one of them dirt cheap and tons of parts.</TD></TR></TABLE>

me too.

 

Be careful when buying a zc camshaft on ebay. The seller (I believe guit-guit) sells these cams from a carbed zc - wont work in a d16a6. I emailed him to ask whether the camshaft up for bids was a fi or carb zc, he replied, "the cams I get are either from a carbed or fi..." - I would not buy it from him...

 

from past experience...i would prefer the single cam....but it depends with one.....ive mostly ran the singlecam (ZC) and had buddies run the (Dohc Zc) in there ride same model and setups just different motors and i would walk all over them...The begining was the best part...i would jumo out of the line and get like a 2 car lenght from them but once there in 3rd they begin to catch up....alot of people think that just because you have the (DOHC) ZC its faster than the singlecam ZC. i gues because they think that 2 cams are better than one. plus there is easier acess to single cams motors...You can find parts for the DOHC but it will take a little more time and money. not to long ago i picked up a JG wild cam for $100 bucks. just the other day i came across a JUN cam i think it was a stage 3...cant remeber and that was for a buck 20...you just have to do alot of looking around.

 

oyeah i even have a video of me racing a homie...me with the singlecam and him with the DOHC ZC and shows how the singlecam outperforms the dohc zc.....i have it on you tube...anyone know how i can post it here...

 

post the link to the site

 

So the SOHC ZC motor has better potential?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dynamitezz &raquo;</TD></TR><TR><TD CLASS="quote">So the SOHC ZC motor has better potential?</TD></TR></TABLE>

I would say the biggest advantage to the DOHC ZC, vs the SOHC ZC, is the ability to set your preferred overlap with adjustable gears.

I put a ZC (DOHC) in my 91 Si and it was hella fast.

 

if you want a real motor put a b16 witch is a 1.6L DOHC that can produce 160 HP with no mod!!1