compression ratio
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got JDM milk???
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compression ratio
ok... after reading Aug. Super Street mag, there was a whole section on turbos... so as i got to reading it... i started listed the necessary mods to build up my sohc engine. but before that... i would like to know if anyone can tell me what is the compression ratio for the sohc head (d16y... something, i forgot 
)? also, what does it mean when they refer to "cam grind"? well, there are a lots of stuff i don't know about turbos... and since i am thinking about doing it... i figure where better place to go to find the answers then the H-A, or HAN. :naughty:
)? also, what does it mean when they refer to "cam grind"? well, there are a lots of stuff i don't know about turbos... and since i am thinking about doing it... i figure where better place to go to find the answers then the H-A, or HAN. :naughty:
NinJA
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From: WISCONSIN
When you're talking about compression ratios, it refers moreso to the block than the head. You can mill the head to reduce the stroke and therefore increase compression but .... forget that for now.
If you're talking about the EX (D16y8) engine from a 96-00 Civic than it's a 9.6:1 CR
If you're talking about the EX (D16y8) engine from a 96-00 Civic than it's a 9.6:1 CR
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got JDM milk???
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Originally posted by ManTiS
When you're talking about compression ratios, it refers moreso to the block than the head. You can mill the head to reduce the stroke and therefore increase compression but .... forget that for now.
If you're talking about the EX (D16y8) engine from a 96-00 Civic than it's a 9.6:1 CR
When you're talking about compression ratios, it refers moreso to the block than the head. You can mill the head to reduce the stroke and therefore increase compression but .... forget that for now.
If you're talking about the EX (D16y8) engine from a 96-00 Civic than it's a 9.6:1 CR
NinJA
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From: WISCONSIN
Dude, I got the same exact car as yours. Our engine can handle moderate boost. I just hope you got a 5speed. When they recommend LOW compression, they meant for insane amounts of power. They're talking large-ass turbo and high amounts of boost.
I am boosting 5psi right now. Tuned/tested/installed by yours truly. I have no intercooler unfortunately. My funds do not permit an intercooler at this time...
More information: A high compression engine and turbo is your BEST way to make power; however, going this route is unSAFE if it's not tuned correctly. Many people recommend low compression because a lower CR means less heat is generated. This creates a safety net of some sort and allows more PSI to be pushed. In summary, given equal everything else, a higher CR will always make more power than a lower CR. High CR and turbo is VERY hard to tune and people tend to blow stuff up. Sorry, that may have been more than you wanted to know.
turbo is cool ...
I am boosting 5psi right now. Tuned/tested/installed by yours truly. I have no intercooler unfortunately. My funds do not permit an intercooler at this time...
More information: A high compression engine and turbo is your BEST way to make power; however, going this route is unSAFE if it's not tuned correctly. Many people recommend low compression because a lower CR means less heat is generated. This creates a safety net of some sort and allows more PSI to be pushed. In summary, given equal everything else, a higher CR will always make more power than a lower CR. High CR and turbo is VERY hard to tune and people tend to blow stuff up. Sorry, that may have been more than you wanted to know.
turbo is cool ...
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got JDM milk???
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dude... thanks for that info... i don't mind. so since urs is tuned... how much hp are you getting to the wheel? and also... what kinda engine mods do you have? btw, yes we have the same car, (5 speed), and some other things...
i know what you mean about the funds.... that's why i am decided if i should just go NA or turbo. if i go NA then i'll probably get the lude SH H22 engine. so for now... i just want to compare the total price of the turbo package, plus all the nick naks i would need vs. a lude engine.
i know what you mean about the funds.... that's why i am decided if i should just go NA or turbo. if i go NA then i'll probably get the lude SH H22 engine. so for now... i just want to compare the total price of the turbo package, plus all the nick naks i would need vs. a lude engine.
NinJA
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From: WISCONSIN
haha, mine is ghetto-tuned. I have neither time nor money to get it dyno-tuned. Also, there are no reputable tuners around here anyways.
If you know what you're doing, then custom build your kit. I bought a pre-packaged kit because it helps me learn how turbos work. Now I know, so next time I'm going custom.
H22 is an okay swap, but I wouldn't do it personally. Also, you do NOT want an SH swap because supposedly the ATTS system is a b1tch to wire up. If you keep the D16, then definately go turbo. It's the only way to make decent power.
A turbo would definately be cheaper than a H22 swap. With an H22, you want a good suspension to help you get traction. You need a mount kit also on top of the WHOLE swap itself.
If you know what you're doing, then custom build your kit. I bought a pre-packaged kit because it helps me learn how turbos work. Now I know, so next time I'm going custom.
H22 is an okay swap, but I wouldn't do it personally. Also, you do NOT want an SH swap because supposedly the ATTS system is a b1tch to wire up. If you keep the D16, then definately go turbo. It's the only way to make decent power.
A turbo would definately be cheaper than a H22 swap. With an H22, you want a good suspension to help you get traction. You need a mount kit also on top of the WHOLE swap itself.
JDM Fan Boy
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From: Scranton PA/Longview TX
Originally posted by ManTiS
haha, mine is ghetto-tuned. I have neither time nor money to get it dyno-tuned. Also, there are no reputable tuners around here anyways.
If you know what you're doing, then custom build your kit. I bought a pre-packaged kit because it helps me learn how turbos work. Now I know, so next time I'm going custom.
H22 is an okay swap, but I wouldn't do it personally. Also, you do NOT want an SH swap because supposedly the ATTS system is a b1tch to wire up. If you keep the D16, then definately go turbo. It's the only way to make decent power.
A turbo would definately be cheaper than a H22 swap. With an H22, you want a good suspension to help you get traction. You need a mount kit also on top of the WHOLE swap itself.
haha, mine is ghetto-tuned. I have neither time nor money to get it dyno-tuned. Also, there are no reputable tuners around here anyways.
If you know what you're doing, then custom build your kit. I bought a pre-packaged kit because it helps me learn how turbos work. Now I know, so next time I'm going custom.
H22 is an okay swap, but I wouldn't do it personally. Also, you do NOT want an SH swap because supposedly the ATTS system is a b1tch to wire up. If you keep the D16, then definately go turbo. It's the only way to make decent power.
A turbo would definately be cheaper than a H22 swap. With an H22, you want a good suspension to help you get traction. You need a mount kit also on top of the WHOLE swap itself.
BTW with 5 psi he's pulling like a B16A most likely.
NinJA
Joined: May 2002
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From: WISCONSIN
Originally posted by incublinkus
So what about a B-Series swap retard? H22 arn't the only engine out there.
BTW with 5 psi he's pulling like a B16A most likely.
So what about a B-Series swap retard? H22 arn't the only engine out there.
BTW with 5 psi he's pulling like a B16A most likely.
H-A G/\|v|3R
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From: San Ho, Cali
Having a decent CR gives you better off the line response before boost kicks in. So when you're piddling around the parking lot or doing some constant/low speed driving you can manage the car without having to go up into boost... helps with the gas and everyday living
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Well, I have a JDM B16A in my Ex and prior to my greddy kit I walked several SOHC Turbo's and all I had was crower rods, cams, and stock air box with a K&N drop in. My best time NA was a 14.3 with much interior removed. I just installed the Turbo kit so I have not had a chance to get any solid numbers but let me just tell you that I can smoke my cousins 94' T/A by about three lengths now with ease, and he runs a consistant 13.9-14.0's. I am boosting to 8psi and I do have an intercooler. When I get a good boost controller and better fuel pump, I should hopefully be able to up the boost substantially since my block is already built. Total I have spent around $6,000.00 on the motor and Turbo kit. And thsi is my second B16A. I will also be getting the nitrous NX kit that sprays the intercooler (I just saw this in a mag recently). I have not decided on a full nitrous kit yet. Maybe after some more safety measures such as a block guard or sleeves. I'm looking at another couple of grand easy. But with proper planning a very potent D16Z6 or D16y8 can be built.