Difference between D16Z6 and Y8.
10-28-2004, 08:46 PM
#2
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Re: Difference between D16Z6 and Y8. (nathan atwell)
Of course.
Z6 is obd1
Y8 is obd2
I think redline is different, and for the trannys i believe that the Z6 is shorter.
Z6 is obd1
Y8 is obd2
I think redline is different, and for the trannys i believe that the Z6 is shorter.
10-28-2004, 08:46 PM
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Re: Difference between D16Z6 and Y8. (Luserkid)
Thats what I thought. Thanks alot. I was wondering if the comp was different or there was a difference in the head or something.
10-28-2004, 08:48 PM
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Re: Difference between D16Z6 and Y8. (revolution8k)
Heads are different, pistons are different, cams are different, distributors are different, oil pans are different...they don't share any parts except for the T-belt and block 
10-28-2004, 08:52 PM
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Re: Difference between D16Z6 and Y8. (Luserkid)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Luserkid »</TD></TR><TR><TD CLASS="quote">Damn the z6 is 9.2:1 CR? That sounds good for turbo. Can someone back that up? </TD></TR></TABLE>
what... you callin me a liar?
All the back up you could ask for:
http://www.hondaswap.com/forum...29825
what... you callin me a liar?
All the back up you could ask for:
http://www.hondaswap.com/forum...29825
Trending Topics
10-28-2004, 08:56 PM
#8
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Re: Difference between D16Z6 and Y8. (revolution8k)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by revolution8k »</TD></TR><TR><TD CLASS="quote">
what... you callin me a liar?
</TD></TR></TABLE>
Liar was such a harsh word I just never knew so ill call you a informer 
(if thats a word)
what... you callin me a liar?
</TD></TR></TABLE>
Liar was such a harsh word
I just never knew so ill call you a informer (if thats a word)
10-28-2004, 09:08 PM
#10
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Re: Difference between D16Z6 and Y8. (nathan atwell)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nathan atwell »</TD></TR><TR><TD CLASS="quote">WOW...people don't F*&& around in this forum. </TD></TR></TABLE>
If you only knew 
</TD></TR></TABLE>If you only knew
10-28-2004, 09:10 PM
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Re: Difference between D16Z6 and Y8. (nathan atwell)
Okay, here's what I know.
Blocks are the same, same bore/stroke/rods
Oil pans are different
Both trannies have the same gear ratios, but the Y8 has stronger shift forks
Z6 redlines at 7200, Y8 at 7000
Z6 has 125 hp, Y8 has 127 hp
Y8 head has a smaller, square combustion chamber
Z6 head has a larger, round combustion chamber
Z6 head flows better
Y8 IM flows better
Z6 has larger dished pistons (i'm pretty sure)
Y8 is 9.6:1, Z6 is 9.2:1
Y8 is obd2, Z6 is obd1
Distributor bolt patterns are different
Y8 has a knock sensor
Y8 has a slightly more aggressive cam
Y8 cam gear is about 5 degrees off from the Z6 gear (which is straight up)
Thats all I can think of for now
Blocks are the same, same bore/stroke/rods
Oil pans are different
Both trannies have the same gear ratios, but the Y8 has stronger shift forks
Z6 redlines at 7200, Y8 at 7000
Z6 has 125 hp, Y8 has 127 hp
Y8 head has a smaller, square combustion chamber
Z6 head has a larger, round combustion chamber
Z6 head flows better
Y8 IM flows better
Z6 has larger dished pistons (i'm pretty sure)
Y8 is 9.6:1, Z6 is 9.2:1
Y8 is obd2, Z6 is obd1
Distributor bolt patterns are different
Y8 has a knock sensor
Y8 has a slightly more aggressive cam
Y8 cam gear is about 5 degrees off from the Z6 gear (which is straight up)
Thats all I can think of for now
10-29-2004, 05:22 AM
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Re: Difference between D16Z6 and Y8. (jerbear!)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jerbear! »</TD></TR><TR><TD CLASS="quote">Isnt the headgasket of the y8 thinner as well?</TD></TR></TABLE>
No, it is full metal while the Z6 is a composite.
No, it is full metal while the Z6 is a composite.
10-29-2004, 08:29 AM
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Re: (boostincoupe)
the y8 has a square combustion chamber as opposed to the z6 circle chamber....try fitting a circle inside a square, don't you have a little extra room left.
long story short....y8 head flows a little better
and yes 9.2:1 is good for turbo
long story short....y8 head flows a little better
and yes 9.2:1 is good for turbo
10-29-2004, 08:40 AM
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Re: (skunk2eg)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by skunk2eg »</TD></TR><TR><TD CLASS="quote">the y8 has a square combustion chamber as opposed to the z6 circle chamber....try fitting a circle inside a square, don't you have a little extra room left.</TD></TR></TABLE>
Uh, negative.
Y8
Z6
A6 w/ welded chamber
The squared-off sides of the Y8 makes the combustion chamber smaller, therefore increasing the compression...it is essentially the same thing as having a welded circular chamber.
"The welded chamber decreases the combustion chamber volume and increases the compression ratio of the setup."
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by skunk2eg »</TD></TR><TR><TD CLASS="quote">
long story short....y8 head flows a little better
</TD></TR></TABLE>
No it doesn't.
Quoted from another thread:
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by draco067 »</TD></TR><TR><TD CLASS="quote">I just finished reading a post on the D-series board about this.
Apparently the Y8 head has a curve in one side of the intake ports, allowing for better low- and mid-rpm swirl, while the Z6 has equal-length and size ports to promote high-rpm flow. The Y8 also splits the port farther back than the Z6. It was noted, however, that unless you're pushing massive power, the flow characteristics aren't that different, so you won't notice any appreciable difference. </TD></TR></TABLE>
Uh, negative.
Y8
Z6
A6 w/ welded chamber
The squared-off sides of the Y8 makes the combustion chamber smaller, therefore increasing the compression...it is essentially the same thing as having a welded circular chamber.
"The welded chamber decreases the combustion chamber volume and increases the compression ratio of the setup."
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by skunk2eg »</TD></TR><TR><TD CLASS="quote">
long story short....y8 head flows a little better
</TD></TR></TABLE>
No it doesn't.
Quoted from another thread:
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by draco067 »</TD></TR><TR><TD CLASS="quote">I just finished reading a post on the D-series board about this.
Apparently the Y8 head has a curve in one side of the intake ports, allowing for better low- and mid-rpm swirl, while the Z6 has equal-length and size ports to promote high-rpm flow. The Y8 also splits the port farther back than the Z6. It was noted, however, that unless you're pushing massive power, the flow characteristics aren't that different, so you won't notice any appreciable difference. </TD></TR></TABLE>
10-29-2004, 09:41 AM
#20
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Re: Difference between D16Z6 and Y8. (BauleyCivic)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BauleyCivic »</TD></TR><TR><TD CLASS="quote">
No, it is full metal while the Z6 is a composite.</TD></TR></TABLE>
actually, the z6 and y8 head gasket has the same part number, and they are all MLS.
No, it is full metal while the Z6 is a composite.</TD></TR></TABLE>
actually, the z6 and y8 head gasket has the same part number, and they are all MLS.
10-29-2004, 09:41 AM
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Re: Difference between D16Z6 and Y8. (BauleyCivic)
block is different too, y8 has the dipstick in the oil pump and z6 has it in the front of the block. i think they only share the water pump, t-belt, cranks, and valves/springs/retainers. they're pretty similar over all
10-29-2004, 09:57 AM
#23
Honda-Tech Member
from my knowledge,
the gearing in the transmissions are the same,
only diff is the y8 has some steel part that the z7 has in aluminum... ppl like that for durability or somethin.. forget what part though.
oh and the folk over at dseries.org prefer the z6 intake mani and have found it to flow better on the top end.
even though the general masses think the y8 is better cuz it LOOKS like it should be
the gearing in the transmissions are the same,
only diff is the y8 has some steel part that the z7 has in aluminum... ppl like that for durability or somethin.. forget what part though.
oh and the folk over at dseries.org prefer the z6 intake mani and have found it to flow better on the top end.
even though the general masses think the y8 is better cuz it LOOKS like it should be
10-29-2004, 10:01 AM
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Re: Difference between D16Z6 and Y8. (steve123)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by steve123 »</TD></TR><TR><TD CLASS="quote">
D16Z6 is the 92-95 civic SI Engine. </TD></TR></TABLE>
and the 92-95 EX coupe and sedan motor
D16Z6 is the 92-95 civic SI Engine.
</TD></TR></TABLE>and the 92-95 EX coupe and sedan motor