Z6 or Y8
MiG-21 superfan
Joined: Mar 2001
Posts: 8,628
Likes: 3
From: near the ocean, Moderator City, NJ
Re: Z6 or Y8 (Jedi Jake)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jedi Jake »</TD></TR><TR><TD CLASS="quote">the y8 head has roller rockers... which is cool</TD></TR></TABLE>
what? no it doesn't.
anyway, the z6 head has the best ports. they are straight 'tumble' ports, vs. the swirl ports of the y8 head. The y8 head offers better combustion quality and probably better low end torque, but it's negligible (if i had to guess)
the y8 has the best combustion chamber shape. If i had to pick, well, i used to say use whatever head is easier to adapt to you car, mostly limited to the distributor for your car because the dizzy's between the two heads don't mate to each other (the arms for the dizzy bolts will be mismatched), however, i've since realized that you can simply switch the insides and run whatever you want to either head.
z6 head has more potential than the y8 head. you can't straighten the offset ports of the y8 head and that is a big problem if you are looking for the best flow.
not sayin it can't make power, because it can, but it's got a low ceiling vs. the z6 head.
what? no it doesn't.
anyway, the z6 head has the best ports. they are straight 'tumble' ports, vs. the swirl ports of the y8 head. The y8 head offers better combustion quality and probably better low end torque, but it's negligible (if i had to guess)
the y8 has the best combustion chamber shape. If i had to pick, well, i used to say use whatever head is easier to adapt to you car, mostly limited to the distributor for your car because the dizzy's between the two heads don't mate to each other (the arms for the dizzy bolts will be mismatched), however, i've since realized that you can simply switch the insides and run whatever you want to either head.
z6 head has more potential than the y8 head. you can't straighten the offset ports of the y8 head and that is a big problem if you are looking for the best flow.
not sayin it can't make power, because it can, but it's got a low ceiling vs. the z6 head.
Member
Joined: Nov 2004
Posts: 1,753
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From: 239, FL
Re: Z6 or Y8 (builthatch)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by builthatch »</TD></TR><TR><TD CLASS="quote">
what? no it doesn't.
anyway, the z6 head has the best ports. they are straight 'tumble' ports, vs. the swirl ports of the y8 head. The y8 head offers better combustion quality and probably better low end torque, but it's negligible (if i had to guess)
the y8 has the best combustion chamber shape. If i had to pick, well, i used to say use whatever head is easier to adapt to you car, mostly limited to the distributor for your car because the dizzy's between the two heads don't mate to each other (the arms for the dizzy bolts will be mismatched), however, i've since realized that you can simply switch the insides and run whatever you want to either head.
z6 head has more potential than the y8 head. you can't straighten the offset ports of the y8 head and that is a big problem if you are looking for the best flow.
not sayin it can't make power, because it can, but it's got a low ceiling vs. the z6 head.</TD></TR></TABLE>
Id have to agree.
Dont get it twisted though, both heads flow like ****
I like the z6 head more w/ a Y8 Intake Manifold
what? no it doesn't.
anyway, the z6 head has the best ports. they are straight 'tumble' ports, vs. the swirl ports of the y8 head. The y8 head offers better combustion quality and probably better low end torque, but it's negligible (if i had to guess)
the y8 has the best combustion chamber shape. If i had to pick, well, i used to say use whatever head is easier to adapt to you car, mostly limited to the distributor for your car because the dizzy's between the two heads don't mate to each other (the arms for the dizzy bolts will be mismatched), however, i've since realized that you can simply switch the insides and run whatever you want to either head.
z6 head has more potential than the y8 head. you can't straighten the offset ports of the y8 head and that is a big problem if you are looking for the best flow.
not sayin it can't make power, because it can, but it's got a low ceiling vs. the z6 head.</TD></TR></TABLE>
Id have to agree.
Dont get it twisted though, both heads flow like ****
I like the z6 head more w/ a Y8 Intake Manifold
Honda-Tech Member
Joined: Aug 2003
Posts: 1,355
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From: Orlando y0
Re: Z6 or Y8 (Jedi Jake)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jedi Jake »</TD></TR><TR><TD CLASS="quote">the y8 head has roller rockers... which is cool</TD></TR></TABLE>
wtf are you talking about. Y5 maybe.
wtf are you talking about. Y5 maybe.
Joined: Nov 2006
Posts: 52
Likes: 0
From: La Porte, IN, United States
Re: Z6 or Y8 (HXvtec)
i have never heard of the y5. i know of the y7 and y8 and i heard that the y8 head. ive heard so many people talk about roller rockers in some sort of d16, which i thought was a y8. i might be wrong but someone correct me then.
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From: La Porte, IN, United States
Re: Z6 or Y8 (HXvtec)
o i forgot all about the hx... but i just looked at a y8 head and rolled that little roller rocker thingy there. so i am still convinced that the y8 heads have roller rockers.
MiG-21 superfan
Joined: Mar 2001
Posts: 8,628
Likes: 3
From: near the ocean, Moderator City, NJ
Re: Z6 or Y8 (Jedi Jake)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jedi Jake »</TD></TR><TR><TD CLASS="quote">o i forgot all about the hx... but i just looked at a y8 head and rolled that little roller rocker thingy there. so i am still convinced that the y8 heads have roller rockers. </TD></TR></TABLE>
please, just stop...
please, just stop...
Member
Joined: Nov 2004
Posts: 1,753
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From: 239, FL
Re: Z6 or Y8 (builthatch)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by builthatch »</TD></TR><TR><TD CLASS="quote">
please, just stop...
</TD></TR></TABLE>
LMAO
please, just stop...
</TD></TR></TABLE>
LMAO
Thread Starter
Joined: Apr 2007
Posts: 15
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From: brooksville, florida, us
Re: Z6 or Y8 (1995Civic)
Do I have to switch my distributor i have d15b7?
Im ordering d16z6 head, gasket set, p28 ecu, vtec wiring, d16y8 intake manifold,
timing belt, and a new distributor if i have to
Im ordering d16z6 head, gasket set, p28 ecu, vtec wiring, d16y8 intake manifold,
timing belt, and a new distributor if i have to
MiG-21 superfan
Joined: Mar 2001
Posts: 8,628
Likes: 3
From: near the ocean, Moderator City, NJ
Re: Z6 or Y8 (aja345)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by aja345 »</TD></TR><TR><TD CLASS="quote">Do I have to switch my distributor i have d15b7?
Im ordering d16z6 head, gasket set, p28 ecu, vtec wiring, d16y8 intake manifold,
timing belt, and a new distributor if i have to</TD></TR></TABLE>
hmm, good question; i used to know this but not anymore; if i had to guess, i'd say it would not work because i believe the arms don't line up, but i'm not 100%.
anyone?
Modified by builthatch at 1:46 PM 4/24/2007
Im ordering d16z6 head, gasket set, p28 ecu, vtec wiring, d16y8 intake manifold,
timing belt, and a new distributor if i have to</TD></TR></TABLE>
hmm, good question; i used to know this but not anymore; if i had to guess, i'd say it would not work because i believe the arms don't line up, but i'm not 100%.
anyone?
Modified by builthatch at 1:46 PM 4/24/2007
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From: Grand Rapids, MI, United States
Re: Z6 or Y8 (builthatch)
NOt sure if anyone brought it up yet or not, but the y-series have known bottom end oiling issues.
Fairly easy to resolve, but just another thing to take into account
Fairly easy to resolve, but just another thing to take into account
MiG-21 superfan
Joined: Mar 2001
Posts: 8,628
Likes: 3
From: near the ocean, Moderator City, NJ
Re: Z6 or Y8 (Forty04)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Forty04 »</TD></TR><TR><TD CLASS="quote">NOt sure if anyone brought it up yet or not, but the y-series have known bottom end oiling issues.
Fairly easy to resolve, but just another thing to take into account</TD></TR></TABLE>
i know the pump doesn't flow as much on paper, but i've had a stock spec pump in my built y8 this entire time, about 4.5 years, and had no problems. I also used a stock spec pump in my y7 for about 4 years in the built y7 before this engine and had no oil starvation issues.
i just dunno about this, i guess i'm lucky but i'd still not recommend against building with one. Maybe it's an issue that surfaces under high g's or something...
I guess "Toga" makes a higher volume pump, you might be able to modify the OE one but i'm not sure how effective it'd actually be....
Fairly easy to resolve, but just another thing to take into account</TD></TR></TABLE>
i know the pump doesn't flow as much on paper, but i've had a stock spec pump in my built y8 this entire time, about 4.5 years, and had no problems. I also used a stock spec pump in my y7 for about 4 years in the built y7 before this engine and had no oil starvation issues.
i just dunno about this, i guess i'm lucky but i'd still not recommend against building with one. Maybe it's an issue that surfaces under high g's or something...
I guess "Toga" makes a higher volume pump, you might be able to modify the OE one but i'm not sure how effective it'd actually be....
Honda-Tech Member
Joined: Mar 2006
Posts: 2,062
Likes: 1
From: Columbus, OH
Re: Z6 or Y8 (aja345)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by aja345 »</TD></TR><TR><TD CLASS="quote">Do I have to switch my distributor i have d15b7?
Im ordering d16z6 head, gasket set, p28 ecu, vtec wiring, d16y8 intake manifold,
timing belt, and a new distributor if i have to</TD></TR></TABLE>
With a z6 head? You'll have to get a new housing or hack yours up. With a y8 head, it should work.
Im ordering d16z6 head, gasket set, p28 ecu, vtec wiring, d16y8 intake manifold,
timing belt, and a new distributor if i have to</TD></TR></TABLE>
With a z6 head? You'll have to get a new housing or hack yours up. With a y8 head, it should work.
MiG-21 superfan
Joined: Mar 2001
Posts: 8,628
Likes: 3
From: near the ocean, Moderator City, NJ
Re: Z6 or Y8 (ddd4114)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ddd4114 »</TD></TR><TR><TD CLASS="quote">
With a z6 head? You'll have to get a new housing or hack yours up. With a y8 head, it should work.</TD></TR></TABLE>
ahh good info, i forget this stuff...
https://honda-tech.com/zero...age=1
With a z6 head? You'll have to get a new housing or hack yours up. With a y8 head, it should work.</TD></TR></TABLE>
ahh good info, i forget this stuff...
https://honda-tech.com/zero...age=1
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From: College Park, Md, U.S.
Re: Z6 or Y8 (Jedi Jake)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jedi Jake »</TD></TR><TR><TD CLASS="quote">the y8 head has roller rockers... which is cool</TD></TR></TABLE>
The d16y8 does not have roller rockers...the vtec-e(economy) head has roller rockers but the D16y8 head is better.
The d16y8 does not have roller rockers...the vtec-e(economy) head has roller rockers but the D16y8 head is better.
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