like topic says whats the better engine? i plan on getting a D-series swap and turboing it (edelbrock) insteaqd of getting a !gen B16A. and is the ODB different between the two? and is that a factor? i was thinking D16Y8 since its newer and wouldnt have as many miles on it than the D16Z6.

 

what year is your car?
z6 is obd1 92-95
y8 is obd2 96-00

between the 2 the y8 is better slightly (better tranny, intake manifold, newer). but the z6 is just as sweet of engine either way.

if you have a 5th gen, get the z6 or a y8 along with an obd1 ecu and jumper harness. if you have a 6th gen, you're stuck with the y8.

 

I personally like d16z6. the head has better flowing ports and i've yet to see a dyno graph of the y8 intake making any more power over the z6 intake. It has a larger plenum, yes, but the runners are actually longer.

 

the chambers are shaped diffrent. if you look you can see the z6 is circular, the y8 is slightly oval for better controlled sparking.

whats wrong with the 1st gen b16?

 

theres actually lots of debate over which is better.

it would SEEM(to the untrained eye, hehe) that the y8 would be better..
its newer.. its IM looks like it SHOULD work better.

but dseries folks have found that its not so true,
the y8 manifold looks better than it actually is,
the z6 manifold flows really well actually..

thing is they do things differently, and are better at different things. BUT when it comes down to it, they are both SO damn similar, that any pros or cons for each, would not be worth converting your car to a different obd to get that engine

so if you have an obdI car get the z6 if you have obdII get the y8

obd conversion can be a PIA

oh and the trannies are the same, functionally,
the y8 shift lever might work alittle smoother cuz its newer though.

 

I'll agree with the 2nd post. They are pretty equivelant motors.

 

sorry to jack the post but would the z6 head fit on a obdII car?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pro547 &raquo;</TD></TR><TR><TD CLASS="quote">sorry to jack the post but would the z6 head fit on a obdII car?</TD></TR></TABLE>

Yes but you need to convert to OBDI as far as I know.

 

actually i have a 90 civic hatchback.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 95EXcivicsleeper &raquo;</TD></TR><TR><TD CLASS="quote">actually i have a 90 civic hatchback.</TD></TR></TABLE>

that'd be obd0 I believe,
could be wrong though.

in which case you'd have to convert either way.

but still obdI is alot easier than obdII

theres less emissions stuff

 

Frankenstien your motor:

y8 tranny - because it's steel, not aluminum like the z6 tranny
z6 block and head
y8 manifold

To me that setup is the most effective and is probably the most popular. Do a search on which is better. There are tons of threads on this topic. Keep in mind this is also a good setup for turbo.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 91civicDXdude &raquo;</TD></TR><TR><TD CLASS="quote"> i've yet to see a dyno graph of the y8 intake making any more power over the z6 intake. It has a larger plenum, yes, but the runners are actually longer.</TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tad &raquo;</TD></TR><TR><TD CLASS="quote">but dseries folks have found that its not so true,
the y8 manifold looks better than it actually is,
the z6 manifold flows really well actually..</TD></TR></TABLE>

I have a complete y8 intake mani that i'm putting on my z6...after hearing this, i'm kind of debating on it...any other opinions on this??

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tad &raquo;</TD></TR><TR><TD CLASS="quote">
but dseries folks have found that its not so true,
the y8 manifold looks better than it actually is,
the z6 manifold flows really well actually..

so if you have an obdI car get the z6 if you have obdII get the y8

obd conversion can be a PIA

oh and the trannies are the same, functionally,
the y8 shift lever might work alittle smoother cuz its newer though.</TD></TR></TABLE>

he's definately right about the y8 Manifold,
but about OBD conversions being a PIA, they aren't that hard to do anymore. companies offer full conversion kits for that kind of thing. When i used to have my old piece of S*** '92 hatch, it was easy to go OBDI to OBDII. I had no duifficulty of doing that. you can find something at JDM ****.com. it was fairly cheap.
the entire OBD change only took a little whilewith no problem.
(THEN 4 DAYS LATER AFTER CONVERSION AND A NICE 1/4 RUN IT WAS F***ING STOLEN! )
hope that helps.

 

alrite im runniongODB 0 and the Y8 is ODB2 so what do i have to convert to when i get the swap done??

 

I have a 91 CRX HF and just bought a d16y8 to go in it. I guess I am in about the same situation. Trying to get everything together to get this motor in.

 

you say that your stuck with a y8 if you have a 96-00,that's wrong i am finishing up a 98 civic that i put a d16z6 in that was fairly easy swap from the original d16y7

 

I'm doing research to put a d16y8 into my 92 hatchback, from what i hear, it shouldnt be much of a hassel. (Or is it?)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Spoolin84Gsl-se &raquo;</TD></TR><TR><TD CLASS="quote">I'm doing research to put a d16y8 into my 92 hatchback, from what i hear, it shouldnt be much of a hassel. (Or is it?)</TD></TR></TABLE>

Its not like its performing brain surgery or something,
but its harder than putting in a z6,

and there is less knowledge about the y8 than the z6, especiall on a y8 in a 5th gen.
you'd also have to either convert to obdII(eeeewww) or convert the motor to obdI...
one of those..

why deal with all that hassle when the z6 is prettymuch the same ****!?
and i'm not just saying that because they're similar motors,
I'm a dseries freak my self, and know there are unending nuances within these motors that make them all differ and unique.

and i'm telling you, the y8 and z6 are basically the same ****.

but if you want to waste ur freakin time, **** it, have fun.

 

y8 tranny - because it's steel, not aluminum like the z6 tranny (shift forks taht is)
z6 block and head
y8 manifold

thats my setup, i likes its a lot, plus i think the z6's are easier to come by

 

Z6 HEAD FLOWS BETTER AND IS OBD 1

 

I appreciate all this information. If there is no big difference between those 2 motors then I will not waste my time doing that swap. Instead I will convert to 5spd. I think my motor is a D15 and hopefully I can get a vtec head that will fit. (is it worth it?) BTW I will be autoxing this car a lot.

 

Yeah, mini-me that bad boy! Either way if you're obd 0 you'll have to move to at least obd1 with a z6 head. I've got a z6 in my 93 hatch and am relatively happy with it. I haven't done my manual conversion yet so I'm rocking the 4AT, but the motor still pulls good and has a good all around fun factor if you throw in the handling of a gutted hatch into the equation

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Spoolin84Gsl-se &raquo;</TD></TR><TR><TD CLASS="quote">I appreciate all this information. If there is no big difference between those 2 motors then I will not waste my time doing that swap. Instead I will convert to 5spd. I think my motor is a D15 and hopefully I can get a vtec head that will fit. (is it worth it?) BTW I will be autoxing this car a lot.</TD></TR></TABLE>

gooooood boy,
thats what I like to hear.
if you have a dx, then putting a z6 head on would work great.

do the 5speed swap first thoug, that should be first priority.

 

difference is y8 is 96-00 ek sohc vtec and z6 is 92-95 eg sohc vtec difference wise is 96-00 has a bigger intake manifold compare to eg's

 

there is nothing located on the head itself that differentiates between OBD generation. The distributor and injectors are different between OBD1 and non-OBD (OBD0). OBDII and OBDI are compatible with each other, so you can run an OBDII distributor with an OBDI ECU and vice versa. the only difference in z6 and y8 heads as far as compatibility is the distributor mounting point locations, but as i said, for use in an OBDI or OBDII car, you can use the distributor that bolts onto the head and it will work with your existing injectors, ECU, and otherwise.