Anyone running PM7 (DOHC ZC) pistons in your Y8?
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From: I heart tool, US
Anyone running PM7 (DOHC ZC) pistons in your Y8?
Just wondering, since I'm kinda concerned about valve clearance and the clearance between the piston dome, and the Y8s quench pad.
+ how do you like the overall motor with those internals?
Just let me know.
Bryson
+ how do you like the overall motor with those internals?
Just let me know.
Bryson
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From: San Diego
Re: Anyone running PM7 (DOHC ZC) pistons in your Y8? (Bryson)
i ran em in my z6, with a single ply headgasket and 20 off of the head.
i clayed the motor (with out a gasket) and i had quite alot of clearence on the exhaust side, and "sufficiant" onteh intake, it was enough for me not to worry
motor blew though, it didnt like the left over 87 i had in my tank
ever since then, i found forced induction
i clayed the motor (with out a gasket) and i had quite alot of clearence on the exhaust side, and "sufficiant" onteh intake, it was enough for me not to worry
motor blew though, it didnt like the left over 87 i had in my tank
ever since then, i found forced induction
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From: San Diego
Re: Anyone running PM7 (d357r0y)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bryson »</TD></TR><TR><TD CLASS="quote">Coo...thanks for the info.
What I'm worried about though is the quench pad of the Y8 head.</TD></TR></TABLE>
well figureing that teh Y8 head has a different chamber then the z6 head, i dont know what to tell you...
but from my understanding it is better in the z6 head
What I'm worried about though is the quench pad of the Y8 head.</TD></TR></TABLE>
well figureing that teh Y8 head has a different chamber then the z6 head, i dont know what to tell you...
but from my understanding it is better in the z6 head
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From: Yankee in Wilmington, NC
Re: Anyone running PM7 (Nerologic)
a bit o/t how do you clay an engine with vtec cam lobe engaged...id be worried about the clearance issue with the valves being further down...
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From: WI
Re: (Bryson)
I asked a local tech that same question and he told me that you can take an air pressure source and spray into the solenoid area and it should lock the pins.
Something like that, wasn't paying too much attention
Something like that, wasn't paying too much attention
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From: East Coast, USA
Re: (Bryson)
you're good...i promise 
EDIT - torqey little thing...looking to put down 155+whp and 120+tq on pump gas.
rough setup...
12.25:1 copmression d16y8
crower stage 3 cam
alaniz competition head
apexi power fc
everything else
soon to be tuned/dyno'd...
Vince
EDIT - torqey little thing...looking to put down 155+whp and 120+tq on pump gas.
rough setup...
12.25:1 copmression d16y8
crower stage 3 cam
alaniz competition head
apexi power fc
everything else
soon to be tuned/dyno'd...
Vince
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From: I heart tool, US
Awsome thanks a lot man!
I was actually thinking about PM'ing you since I knew you were running them but for some reason I thought you were building an A6.
I can't wait to hear about the #'s you make...
Are you running ITBs, or an aftermarket Intake mani?
I was actually thinking about PM'ing you since I knew you were running them but for some reason I thought you were building an A6.
I can't wait to hear about the #'s you make...
Are you running ITBs, or an aftermarket Intake mani?
Member
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From: East Coast, USA
Re: (Bryson)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bryson »</TD></TR><TR><TD CLASS="quote">Awsome thanks a lot man!
I was actually thinking about PM'ing you since I knew you were running them but for some reason I thought you were building an A6.
I can't wait to hear about the #'s you make...
Are you running ITBs, or an aftermarket Intake mani? </TD></TR></TABLE>
Yeah man hit me up anytime...i love to share the D knowledge!
Right now i've got a skunk2 mani untouched w/h22 tb...it made a HUGE difference even over a y8 manifold with nicely ported runners. SMS 1st run prototype d series header with custom 2.5 mandrel exhaust, test pipe, magnaflow res and muffler.
Breathes nicely and pulls like crazy...just need my little custom z10 catchcan setup done and tuning the 27th of this month.
Vince
I was actually thinking about PM'ing you since I knew you were running them but for some reason I thought you were building an A6.
I can't wait to hear about the #'s you make...
Are you running ITBs, or an aftermarket Intake mani? </TD></TR></TABLE>
Yeah man hit me up anytime...i love to share the D knowledge!
Right now i've got a skunk2 mani untouched w/h22 tb...it made a HUGE difference even over a y8 manifold with nicely ported runners. SMS 1st run prototype d series header with custom 2.5 mandrel exhaust, test pipe, magnaflow res and muffler.
Breathes nicely and pulls like crazy...just need my little custom z10 catchcan setup done and tuning the 27th of this month.
Vince
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From: I heart tool, US
Sweet...
I'm planning on building pretty much the same setup as you, only with F4I ITBs instead.
Does your setup idle loud at all with that 12.5Cr? If you can even tell with the exhaust and all...
I'm planning on building pretty much the same setup as you, only with F4I ITBs instead.
Does your setup idle loud at all with that 12.5Cr? If you can even tell with the exhaust and all...
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From: East Coast, USA
Re: (Bryson)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bryson »</TD></TR><TR><TD CLASS="quote">Sweet...
I'm planning on building pretty much the same setup as you, only with F4I ITBs instead.
Does your setup idle loud at all with that 12.5Cr? If you can even tell with the exhaust and all...</TD></TR></TABLE>
Well, louder than stock hehe especially with the crower 3 cam...after about 4k the engine noise takes over the exhaust noise and it just gets obnoxious! but in a good way...doesn't sound ricey at all. Sound like something you'd watch on the speed channel...a real race car!
Vince
I'm planning on building pretty much the same setup as you, only with F4I ITBs instead.
Does your setup idle loud at all with that 12.5Cr? If you can even tell with the exhaust and all...
</TD></TR></TABLE>Well, louder than stock hehe especially with the crower 3 cam...after about 4k the engine noise takes over the exhaust noise and it just gets obnoxious! but in a good way...doesn't sound ricey at all. Sound like something you'd watch on the speed channel...a real race car!
Vince
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From: San Diego
Re: (AgentJam)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AgentJam »</TD></TR><TR><TD CLASS="quote">
Right now i've got a skunk2 mani untouched w/h22 tb...it made a HUGE difference even over a y8 manifold with nicely ported runners. SMS 1st run prototype d series header with custom 2.5 mandrel exhaust, test pipe, magnaflow res and muffler.
Vince</TD></TR></TABLE>
how much does the skunk run? and is it worth getting??
im going to run my car in "all motor" class in baja, Mexico in febuary
i have to run 89, so im stuck with the PM6's over the P29's/PM7's..
its all going into a z6 with 20 off of the head and "mild" porting done to the head 5 angle valve, the Y8 maifold has worked fine with what i had before (basically same setup w p29's)
stock cam on a custom tune - all the sohc prog's sucked (skunk2, eriks, rpt, etc..) only good rom, was the "jun" for the bseries motor and the gude (sohc vtec) - they ran pretty good with my setup, and its what runs best in friends sohc v's.
but my question is if it was really worth it with teh setup i have, its tame not too wild enough that i would think i would see gains...
the Y8 manifold i have is port matched to the head and to a bored to 62mm B series TB, it has been sliced opend (through the plenum) and ported/gutted extremly. After the porting and gutting was done it was a few lbs lighter, and it had ALOT more top end then when it was stock...
so do u think its worth spending the extra cash even thoguh its not a "serious" setup?
Right now i've got a skunk2 mani untouched w/h22 tb...it made a HUGE difference even over a y8 manifold with nicely ported runners. SMS 1st run prototype d series header with custom 2.5 mandrel exhaust, test pipe, magnaflow res and muffler.
Vince</TD></TR></TABLE>
how much does the skunk run? and is it worth getting??
im going to run my car in "all motor" class in baja, Mexico in febuary
i have to run 89, so im stuck with the PM6's over the P29's/PM7's..
its all going into a z6 with 20 off of the head and "mild" porting done to the head 5 angle valve, the Y8 maifold has worked fine with what i had before (basically same setup w p29's)
stock cam on a custom tune - all the sohc prog's sucked (skunk2, eriks, rpt, etc..) only good rom, was the "jun" for the bseries motor and the gude (sohc vtec) - they ran pretty good with my setup, and its what runs best in friends sohc v's.
but my question is if it was really worth it with teh setup i have, its tame not too wild enough that i would think i would see gains...
the Y8 manifold i have is port matched to the head and to a bored to 62mm B series TB, it has been sliced opend (through the plenum) and ported/gutted extremly. After the porting and gutting was done it was a few lbs lighter, and it had ALOT more top end then when it was stock...
so do u think its worth spending the extra cash even thoguh its not a "serious" setup?
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Posts: 1,632
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From: East Coast, USA
Re: (Nerologic)
In your case it may not be...depending on what kind of output you are pushing.
My y8 manifold was done by joe alaniz (alaniztechnologies) out in CA, runners/flange/tb flange were ported and still when i put on skunk2 i felt gains all across the board, from throttle response at idle to redline.
Problem with the y8 manifold (which you can easily see when looking at it) is that the runners come off plenum at bottom and do a 90deg turn then bend upward then back perpendicular to head flange.
My skunk 2's runners bend off plenum at a slight angle and only gradually meet the head flange w/no sharp bends.
I'm looking to put down in the 160's whp and 120's tq on pump gas (94 oct), maybe on a more modest setup your manifold will work fine.
If i were you i'd stick with the y8 one you have...dyno then see where you are at. I'm sure it would help...but whether or not the gain is worth the money in your situation is the question.
I think they run for like $250-$280??? I didn't really pay for mine direcly...more part of a deal/testing purposes.
Good luck,
Vince
My y8 manifold was done by joe alaniz (alaniztechnologies) out in CA, runners/flange/tb flange were ported and still when i put on skunk2 i felt gains all across the board, from throttle response at idle to redline.
Problem with the y8 manifold (which you can easily see when looking at it) is that the runners come off plenum at bottom and do a 90deg turn then bend upward then back perpendicular to head flange.
My skunk 2's runners bend off plenum at a slight angle and only gradually meet the head flange w/no sharp bends.
I'm looking to put down in the 160's whp and 120's tq on pump gas (94 oct), maybe on a more modest setup your manifold will work fine.
If i were you i'd stick with the y8 one you have...dyno then see where you are at. I'm sure it would help...but whether or not the gain is worth the money in your situation is the question.
I think they run for like $250-$280??? I didn't really pay for mine direcly...more part of a deal/testing purposes.
Good luck,
Vince
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Posts: 9,041
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From: San Diego
Re: (AgentJam)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AgentJam »</TD></TR><TR><TD CLASS="quote">In your case it may not be...depending on what kind of output you are pushing.
My y8 manifold was done by joe alaniz (alaniztechnologies) out in CA, runners/flange/tb flange were ported and still when i put on skunk2 i felt gains all across the board, from throttle response at idle to redline.
Problem with the y8 manifold (which you can easily see when looking at it) is that the runners come off plenum at bottom and do a 90deg turn then bend upward then back perpendicular to head flange.
My skunk 2's runners bend off plenum at a slight angle and only gradually meet the head flange w/no sharp bends.
I'm looking to put down in the 160's whp and 120's tq on pump gas (94 oct), maybe on a more modest setup your manifold will work fine.
If i were you i'd stick with the y8 one you have...dyno then see where you are at. I'm sure it would help...but whether or not the gain is worth the money in your situation is the question.
I think they run for like $250-$280??? I didn't really pay for mine direcly...more part of a deal/testing purposes.
Good luck,
Vince</TD></TR></TABLE>
ya i kinda figured that, im not going to push that much power and for around 250 is a bit steep for me rigth now...
the OBX one looks kinda tempting for 75 bucks, so i might try that garbage out...
My y8 manifold was done by joe alaniz (alaniztechnologies) out in CA, runners/flange/tb flange were ported and still when i put on skunk2 i felt gains all across the board, from throttle response at idle to redline.
Problem with the y8 manifold (which you can easily see when looking at it) is that the runners come off plenum at bottom and do a 90deg turn then bend upward then back perpendicular to head flange.
My skunk 2's runners bend off plenum at a slight angle and only gradually meet the head flange w/no sharp bends.
I'm looking to put down in the 160's whp and 120's tq on pump gas (94 oct), maybe on a more modest setup your manifold will work fine.
If i were you i'd stick with the y8 one you have...dyno then see where you are at. I'm sure it would help...but whether or not the gain is worth the money in your situation is the question.
I think they run for like $250-$280??? I didn't really pay for mine direcly...more part of a deal/testing purposes.
Good luck,
Vince</TD></TR></TABLE>
ya i kinda figured that, im not going to push that much power and for around 250 is a bit steep for me rigth now...
the OBX one looks kinda tempting for 75 bucks, so i might try that garbage out...
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From: East Coast, USA
Re: Anyone running PM7 (Nerologic)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Nerologic »</TD></TR><TR><TD CLASS="quote">
well figureing that teh Y8 head has a different chamber then the z6 head, i dont know what to tell you...
but from my understanding it is better in the z6 head </TD></TR></TABLE>
woah i didn't see this untill now but no way i'd take the y8 head over z6 for street anyday...
those y8 cc's will give you the ability to street some nasty compression with good advance. From what i've seen "stock for stock" the z6 flows better, only because of the "swirl" effect of the asymmetrical y8 intake ports.
Well...get a y8 head ported and it'll be well up to par in terms of flow comared to ported z6.
I'd like to have both heads stock and with portwork to flowbench myself but from seeing pics of each head as well as my old stock y8 head and the one done by alaniz i think i have enough to speak from.
I guess it all depends on how far you take the portwork but joe alaniz took my y8 head to a whole nother level...
Maybe i'll get some pics up later tonight.
Vince
well figureing that teh Y8 head has a different chamber then the z6 head, i dont know what to tell you...
but from my understanding it is better in the z6 head
</TD></TR></TABLE>woah i didn't see this untill now but no way i'd take the y8 head over z6 for street anyday...
those y8 cc's will give you the ability to street some nasty compression with good advance. From what i've seen "stock for stock" the z6 flows better, only because of the "swirl" effect of the asymmetrical y8 intake ports.
Well...get a y8 head ported and it'll be well up to par in terms of flow comared to ported z6.
I'd like to have both heads stock and with portwork to flowbench myself but from seeing pics of each head as well as my old stock y8 head and the one done by alaniz i think i have enough to speak from.
I guess it all depends on how far you take the portwork but joe alaniz took my y8 head to a whole nother level...
Maybe i'll get some pics up later tonight.
Vince
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From: Wisconsin
Re: Anyone running PM7 (AgentJam)
sorry to hi-jack the thread, i've got basically the same setup:
p29 75.50mm pistons on stock rods
y7 block overbored .50mm and rehoned via 400grit
y8 head (stock for now, otherwise i plan for crower stg. 2 w/ vavlessprings and retainers)
i'm just kinda worried about the c/r which calculated will be 12.7:1, i was thinking about purchasing a cometic HP .054" head gasket to bring it down to low 12s...how's that apex-i headgasket doing? 8)
p29 75.50mm pistons on stock rods
y7 block overbored .50mm and rehoned via 400grit
y8 head (stock for now, otherwise i plan for crower stg. 2 w/ vavlessprings and retainers)
i'm just kinda worried about the c/r which calculated will be 12.7:1, i was thinking about purchasing a cometic HP .054" head gasket to bring it down to low 12s...how's that apex-i headgasket doing? 8)
Member
Joined: Jun 2003
Posts: 1,632
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From: East Coast, USA
Re: Anyone running PM7 (mRek9R)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mRek9R »</TD></TR><TR><TD CLASS="quote">sorry to hi-jack the thread, i've got basically the same setup:
p29 75.50mm pistons on stock rods
y7 block overbored .50mm and rehoned via 400grit
y8 head (stock for now, otherwise i plan for crower stg. 2 w/ vavlessprings and retainers)
i'm just kinda worried about the c/r which calculated will be 12.7:1, i was thinking about purchasing a cometic HP .054" head gasket to bring it down to low 12s...how's that apex-i headgasket doing? 8)</TD></TR></TABLE>
Apexi piece is doing great as of now
Vince
p29 75.50mm pistons on stock rods
y7 block overbored .50mm and rehoned via 400grit
y8 head (stock for now, otherwise i plan for crower stg. 2 w/ vavlessprings and retainers)
i'm just kinda worried about the c/r which calculated will be 12.7:1, i was thinking about purchasing a cometic HP .054" head gasket to bring it down to low 12s...how's that apex-i headgasket doing? 8)</TD></TR></TABLE>
Apexi piece is doing great as of now
Vince
Joined: May 2002
Posts: 2,109
Likes: 1
From: naptime, milwaukee, usa
Re: Anyone running PM7 (AgentJam)
i'm running a d16a6 with the pm7 pistons and a head/intake mainifold built by GUDE. it is all togher,but it hasnt started yet. hopefully i can finally find the time to figure it out and i will let you know how it runs.
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Joined: Jan 2003
Posts: 1,902
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From: Wisconsin
Re: Anyone running PM7 (peichie)
yO! sups brothers! it is now completed! here's the parts list:
y7 block, 75.50mm
p29 pistons, hastings p/r
y7 crank
y7 rods
y7 oil pan
y7 oil pump
y7 water pump
y7 tensioner
y7 spring
ARP headbolts
total cost: ~$1000.00
here are the pictures!
y7 block, 75.50mm
p29 pistons, hastings p/r
y7 crank
y7 rods
y7 oil pan
y7 oil pump
y7 water pump
y7 tensioner
y7 spring
ARP headbolts
total cost: ~$1000.00
here are the pictures!
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Posts: 4,749
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From: Portland, OR
Re: Anyone running PM7 (DOHC ZC) pistons in your Y8? (Bryson)
Ya should of asked bryson - ive run ZC pistons in a z6 block with a y8 head before. Ran just fine. Gets you around 12:1 if i recall.
I also have a set of ZC pistons for sale - if you need a set. Lemme know.
liam
I also have a set of ZC pistons for sale - if you need a set. Lemme know.
liam