11:0:1 Compression in a y8 worth the money?
12-09-2003, 01:36 PM
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11:0:1 Compression in a y8 worth the money?
Hey guys, just wondering what sort of gains I would see with 11:0:1 compression over my stock compression in my y8 and if the time and effort is worth it. This is my daily driver and weekend AutoX car, so reliability is a must. I am shooting for 160whp by the time I am done with this motor, Im going NA All Motor just incase you havent figured it out yet 
My current mods are:
AEM ITR cai
GSR TB
Skunk2 IM
Crower Stage 2 cam w/Crower valvesprings and Titanium Retainers
AEM Tru Time cam gear
Walbro 255 fuel pump
Comptech ss header
Comptech cat-back exhaust
Thanks guys!
My current mods are:
AEM ITR cai
GSR TB
Skunk2 IM
Crower Stage 2 cam w/Crower valvesprings and Titanium Retainers
AEM Tru Time cam gear
Walbro 255 fuel pump
Comptech ss header
Comptech cat-back exhaust
Thanks guys!
12-09-2003, 02:23 PM
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Re: (Kikomon)
11 is around what these pistons will yield. Is 12 good for daily driving? I think 11 would be good because I can prolly stick to 89 gas Im assuming. What do you guys think?
12-09-2003, 03:31 PM
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Re: (BMac86)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BMac86 »</TD></TR><TR><TD CLASS="quote">11 is around what these pistons will yield. Is 12 good for daily driving? I think 11 would be good because I can prolly stick to 89 gas Im assuming. What do you guys think?</TD></TR></TABLE>
im sure you can use 89 gas on a motor but i know that integra gsr motors that are 10.1 require 93+ or thats what the manual says so thats what i do... but also a lotta motorcycles that are really high compression require premium gas to run.. i would run atleast 91 in a higher compression motor
im sure you can use 89 gas on a motor but i know that integra gsr motors that are 10.1 require 93+ or thats what the manual says so thats what i do... but also a lotta motorcycles that are really high compression require premium gas to run.. i would run atleast 91 in a higher compression motor
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12-09-2003, 03:53 PM
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Re: (djhatch)
Ok well thanks, Id run 91. Now is it worth it paying for 11:1 than 12:6? It is brand new SRP pistons on new z6 rods for $125 heh. Would you buy these or go for p29's instead?
12-09-2003, 04:08 PM
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Re: (Kikomon)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Kikomon »</TD></TR><TR><TD CLASS="quote">160 looks kind of a high goal, 140-150 is more realistic...i think...
why only 11:1? why not 12:1???????
</TD></TR></TABLE>
ha ha.....
MAYBE 128-130......i would be very surprised if it was that high!
why only 11:1? why not 12:1???????
</TD></TR></TABLE>ha ha.....
MAYBE 128-130......i would be very surprised if it was that high!
12-09-2003, 04:10 PM
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Re: (USDMDC2)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by USDMDC2 »</TD></TR><TR><TD CLASS="quote">Bump i want to know also...plan on bumping my compression up with a thinner head gasket...btw where can i buy one at?</TD></TR></TABLE>
i thought that there were layers of gaskets and you just removed one and kept the other one..... maybe not.... not exactly sure
i'm pretty sure thats what it is, i've comtemplated using the thinner layers of the head gasket
i thought that there were layers of gaskets and you just removed one and kept the other one..... maybe not.... not exactly sure
i'm pretty sure thats what it is, i've comtemplated using the thinner layers of the head gasket
12-09-2003, 04:21 PM
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Re: (Jswpstdoff)
spoon makes a 2-ply head gasket that increases ur sompression by .2 points. but if you dont wanna pay a bit for it... then idk where to get one. im sure there are plenty who make em. whats the highest compression you can sfely run on pump gas? i would like to go to about 12.1:1. that sounds good, but iff race gas is all i can run then 11.1:1 will do
12-09-2003, 04:31 PM
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Re: (nohondayet)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nohondayet »</TD></TR><TR><TD CLASS="quote">spoon makes a 2-ply head gasket that increases ur sompression by .2 points. but if you dont wanna pay a bit for it... then idk where to get one. im sure there are plenty who make em. whats the highest compression you can sfely run on pump gas? i would like to go to about 12.1:1. that sounds good, but iff race gas is all i can run then 11.1:1 will do
</TD></TR></TABLE>
spoon doesn't make any d-series internals.
</TD></TR></TABLE>
spoon doesn't make any d-series internals.
12-09-2003, 04:33 PM
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Re: (chad)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chad »</TD></TR><TR><TD CLASS="quote">
ha ha.....
MAYBE 128-130......i would be very surprised if it was that high!</TD></TR></TABLE>
There are d-series folks making that at the wheels with just bolt-ons and an intake manifold.
ha ha.....
MAYBE 128-130......i would be very surprised if it was that high!</TD></TR></TABLE>
There are d-series folks making that at the wheels with just bolt-ons and an intake manifold.
12-09-2003, 04:37 PM
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Re: (kommon_sense)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kommon_sense »</TD></TR><TR><TD CLASS="quote">
There are d-series folks making that at the wheels with just bolt-ons and an intake manifold. </TD></TR></TABLE>
dseries folks do not make 130 at the wheels with just boltons and intake manifold.
maybe theres one guy here and there..
but i've looked at lots of ppls d16 setups,
and they only reach that at the wheels.. when running cams full boltons, tuning and other little tidbits.
There are d-series folks making that at the wheels with just bolt-ons and an intake manifold. </TD></TR></TABLE>
dseries folks do not make 130 at the wheels with just boltons and intake manifold.
maybe theres one guy here and there..
but i've looked at lots of ppls d16 setups,
and they only reach that at the wheels.. when running cams full boltons, tuning and other little tidbits.
12-09-2003, 04:40 PM
#16
Re:
Sorry dont mean to steal the thread...
Engine: d16z6 mods i/h/e 98,000 miles 200 compression all the way across..
I want to raise compression maybe to 10:1 or what ever is safe for daily driving..what all will i need to do to raise compression to 10:1 can i go higher what would be the safest and what head gasket should i buy and where should i buy it from??? I've heard of cometic or ,etc??? Links/urls needed TIA.
Also how much hp is there to be gained with 10:1 compression? or higher..
Engine: d16z6 mods i/h/e 98,000 miles 200 compression all the way across..
I want to raise compression maybe to 10:1 or what ever is safe for daily driving..what all will i need to do to raise compression to 10:1 can i go higher what would be the safest and what head gasket should i buy and where should i buy it from??? I've heard of cometic or ,etc??? Links/urls needed TIA.
Also how much hp is there to be gained with 10:1 compression? or higher..
12-09-2003, 04:45 PM
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Re: Re: (USDMDC2)
I dont think bumping it up to 10 is a prob. You could prolly make that with a y8 milled head and a thinner head gasket. Im prolly wrong like usual though. Anyways, is it worth $140 for pistons and rods to get 11:1 CR?
12-09-2003, 05:09 PM
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Re: (Tad)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tad »</TD></TR><TR><TD CLASS="quote">
dseries folks do not make 130 at the wheels with just boltons and intake manifold.
maybe theres one guy here and there..
but i've looked at lots of ppls d16 setups,
and they only reach that at the wheels.. when running cams full boltons, tuning and other little tidbits.</TD></TR></TABLE>
https://honda-tech.com/zerothread?id=653889
This dyno is without a CAI. If you read further through the thread it also gives the gains that AEM found while developing the V2 CAI for the edelbrock IM. Puts him right at that range and the car was untuned. Is everyone's car going to react the same? No.
So as I said, d-series folks are making capable of making that without anything crazy. The original poster has a little more than just your basic bolt-ons. He has a crower stage 2 cam which should really benefit from higher 11:1 CR. He also has an upgraded valve train, so he should be able to rev to 8k (provided his ecu allows it). So he should definately be able to do better than the individual that I was responding to suggests. If the original poster had some headwork done, he would be set. I would think that he would benefit more from the headwork than he would from upping the CR.
dseries folks do not make 130 at the wheels with just boltons and intake manifold.
maybe theres one guy here and there..
but i've looked at lots of ppls d16 setups,
and they only reach that at the wheels.. when running cams full boltons, tuning and other little tidbits.</TD></TR></TABLE>
https://honda-tech.com/zerothread?id=653889
This dyno is without a CAI. If you read further through the thread it also gives the gains that AEM found while developing the V2 CAI for the edelbrock IM. Puts him right at that range and the car was untuned. Is everyone's car going to react the same? No.
So as I said, d-series folks are making capable of making that without anything crazy. The original poster has a little more than just your basic bolt-ons. He has a crower stage 2 cam which should really benefit from higher 11:1 CR. He also has an upgraded valve train, so he should be able to rev to 8k (provided his ecu allows it). So he should definately be able to do better than the individual that I was responding to suggests. If the original poster had some headwork done, he would be set. I would think that he would benefit more from the headwork than he would from upping the CR.
12-09-2003, 06:02 PM
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Re: Re: (USDMDC2)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by USDMDC2 »</TD></TR><TR><TD CLASS="quote">I dunno why dont u just get a thin head gasket?</TD></TR></TABLE>
I could always get the pistons AND a thinner head gasket.
Also, thanks for the replies guys. Atleast someone will back the small D up. I planned on doing my head first, but I cant afford the PnP. I am looking for an alrdy PnP'd head currently, but no one has them.
I could always get the pistons AND a thinner head gasket.
Also, thanks for the replies guys. Atleast someone will back the small D up. I planned on doing my head first, but I cant afford the PnP. I am looking for an alrdy PnP'd head currently, but no one has them.
12-09-2003, 06:59 PM
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Re: Re: (Ricey McRicerton)
Alright guys, question. I dont trust myself on the bottom end. I did my headwork, but I will leave the bottom end to a pro I think. How much should I expect to pay to get new pistons and rods installed at a reputable shop? I dont mean a shop that will just rip me off, just a decent price, how much? If I can find a spare y8 block Ill do it myself, but other than that, I dont wanna. I know I need to get the cylinder walls honed also. Thanks!
