Nissan 370Z Forum

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-   -   Any 370s running higher than 20psi? (http://www.the370z.com/forced-induction/12654-any-370s-running-higher-than-20psi.html)

GoDZiLLa_845 12-25-2009 08:13 AM

Any 370s running higher than 20psi?
 
just wondering...looking for results..i plan to purchase a kit..

p.s. not sure if im in right thread so dont flame me plz...seemed right-ish

G37Sam 12-25-2009 08:30 AM

What kit do you plan on purchasing? Seems like you're going for the turbonator from the way you post :bowrofl:

KingDavid 12-25-2009 08:34 AM

Lol @ 20 psi.

G37Sam 12-25-2009 08:42 AM

Yo I'm running 35 psi




























In my tires :bowrofl:

GoDZiLLa_845 12-25-2009 09:07 AM

why cant i come across any ppl just to give answers and not talk about way i post and etc.. but yea idk guys

i dont kno mechanics as most of you on this forum do and my might not be right.. i just love how in my friends sti when he hits around 3 4k rpm the rpms jump and the cars is screaming...

http://www.youtube.com/watch?v=fma0ikX2n0c

370Zsteve 12-25-2009 09:10 AM

Where did you come up with a 20psi number, that is absurdly high. You are not only going to get flamed, you are going to get nuked.

GoDZiLLa_845 12-25-2009 09:29 AM

Quote:

Originally Posted by 370Zsteve (Post 341414)
Where did you come up with a 20psi number, that is absurdly high. You are not only going to get flamed, you are going to get nuked.

tactical nuke...heh

BoBoTee 12-25-2009 09:38 AM

You can't run 20psi on a stock block 370z like you can on the Sti or Evo. Those cars have a low compression 8.5:1 ratio made for boosting. The Z I think is 11:1 ratio. With high compression your are already generating alot of heat and adding an additional 20psi is going to blow the VQ37 to kingdomcome. I think the most boost you can run on the VQ37 from what I've read is around 8psi max on 93 oct. and that's considered high. When I had my Evo I was running 22psi daily driven and 24psi when in race mode all on 93octane.hehe.

G37Sam 12-25-2009 09:42 AM

Quote:

Originally Posted by GoDZiLLa_845 (Post 341412)
why cant i come across any ppl just to give answers and not talk about way i post and etc.. but yea idk guys

i dont kno mechanics as most of you on this forum do and my might not be right.. i just love how in my friends sti when he hits around 3 4k rpm the rpms jump and the cars is screaming...

http://www.youtube.com/watch?v=fma0ikX2n0c

Because simple rule in any decent forum on this planet, you have to post proper to be taken seriously. If you post like you're chatting over MSN messenger then your thread will turn into the one it just turned into. And besides, you didn't provide any details at all. You literally just threw the number 20psi like you heard it somewhere and walked out.

370Zsteve 12-25-2009 09:45 AM

Quote:

Originally Posted by BoBoTee (Post 341430)
You can't run 20psi on a stock block 370z like you can on the Sti or Evo. Those cars have a low compression 8.5:1 ratio made for boosting. The Z I think is 11:1 ratio. With high compression your are already generating alot of heat and adding an additional 20psi is going to blow the VQ37 to kingdomcome. I think the most boost you can run on the VQ37 from what I've read is around 8psi max on 93 oct. and that's considered high. When I had my Evo I was running 22psi daily driven and 24psi when in race mode all on 93octane.hehe.

Just curious, how did the Mitsu engine hold up under 22psi/24psi? Any smoke coming out of the exhaust that was maybe darker then usual? I wish I had a dime for every Evo and WRX I've seen over the past few years that were burning oil at an alarming rate.

KingDavid 12-25-2009 09:50 AM

PSI is somewhat irrelevant. You should be asking how much power can these cars handle stock block. Because, my god, 25 psi on a t28 is NOT 25 psi on a gt40.

GoDZiLLa_845 12-25-2009 09:50 AM

Quote:

Originally Posted by BoBoTee (Post 341430)
You can't run 20psi on a stock block 370z like you can on the Sti or Evo. Those cars have a low compression 8.5:1 ratio made for boosting. The Z I think is 11:1 ratio. With high compression your are already generating alot of heat and adding an additional 20psi is going to blow the VQ37 to kingdomcome. I think the most boost you can run on the VQ37 from what I've read is around 8psi max on 93 oct. and that's considered high. When I had my Evo I was running 22psi daily driven and 24psi when in race mode all on 93octane.hehe.

thanks man for answering i really appreciate it..and to all others sorry for not giving detailss and w.e but thanks for answering like i said i dont have logic in mechanical...all i can tell u is cars/models/years....thats like the best thing i know and lil about them...i thought nissans blocks could handle lots of boost/power etc... rb26's n1 block example i think it could handle like over 2000hp...thats why they call it godzilla correct me...rb26 is nissan skyline gtr34's motor

KingDavid 12-25-2009 09:54 AM

Quote:

Originally Posted by GoDZiLLa_845 (Post 341442)
thanks man for answering i really appreciate it..and to all others sorry for not giving detailss and w.e but thanks for answering like i said i dont have logic in mechanical...all i can tell u is cars/models/years....thats like the best thing i know and lil about them...i thought nissans blocks could handle lots of boost/power etc... rb26's n1 block example i think it could handle like over 2000hp

Two thou-
:icon18::icon18::icon18:

No.

Different blocks, different applications, yada yada yada...Make a power goal for yourself and build towards that. You want good power and torque?

Here you go.

http://www.the370z.com/forced-induct...p-532rwtq.html

But what RB26 is making TWO THOUSAND HORSEPOWER??? :ughdance:

370Zsteve 12-25-2009 09:58 AM

Quote:

Originally Posted by KingDavid (Post 341446)
But what RB26 is making TWO THOUSAND HORSEPOWER??? :ughdance:

The one that SophiaZ's mechanic rebuilt!:rofl2:

GoDZiLLa_845 12-25-2009 10:04 AM

i found a g37 here with 700hp..
http://www.youtube.com/watch?v=llMLxWiFGMI

GoDZiLLa_845 12-25-2009 10:13 AM

correction: the rb26's block is rumored to be capable of withstanding up to2500hp

ive heard of topsecret's skyline r34 making 1750hp

nogoodname 12-25-2009 10:22 AM

Get a forged vq37 engine block and do what you want lol

stock block can go to 11 psi max and that was pushing it.

G37Sam 12-25-2009 10:26 AM

Godzilla you need to do a lot more reading IMO, you're too concerned with final numbers without giving a damn about the process :p

Goto HowStuffWorks - Learn How Everything Works! and read articles there. Read about how they work and all. We were all noobs once :)

BoBoTee 12-25-2009 11:17 AM

Quote:

Originally Posted by 370Zsteve (Post 341436)
Just curious, how did the Mitsu engine hold up under 22psi/24psi? Any smoke coming out of the exhaust that was maybe darker then usual? I wish I had a dime for every Evo and WRX I've seen over the past few years that were burning oil at an alarming rate.

Nope never blew any dark smoke, or burned alot of oil. I would blame that on the tuning, and parts selected. The stock internal holds up to 500awhp before it needs an upgrade. Even though you can push 500awhp on the stocker that's not an everyday thing. I ran 22.5psi consistently on a daily basis and 24psi on colder days and that's on a stock td0516g/10.5 hotside I dyno'd low but ran faster on the street then others that dyno'd higher. Weird.

BoBoTee 12-25-2009 11:22 AM

Quote:

Originally Posted by KingDavid (Post 341440)
PSI is somewhat irrelevant. You should be asking how much power can these cars handle stock block. Because, my god, 25 psi on a t28 is NOT 25 psi on a gt40.

true 25psi on a t28 is not the same on a 3076,gt30,gt35r,gt40. I don't agree that psi is irrelevant though.

KingDavid 12-25-2009 11:24 AM

Quote:

Originally Posted by 370zsteve (Post 341450)
the one that sophiaz's mechanic rebuilt!:rofl2:

rotflmao!!!!

Kidcane 12-25-2009 12:16 PM

I want 42 psi. Should put me right at about 3000HP

kannibul 12-25-2009 01:14 PM

Quote:

Originally Posted by GoDZiLLa_845 (Post 341369)
just wondering...looking for results..i plan to purchase a kit..

p.s. not sure if im in right thread so dont flame me plz...seemed right-ish

20 PSI?

People are getting 500+ HP from 6-8 PSI...I can't imagine A) what levels of HP 20PSI would produce, and B) How long that engine would last, C) What else it would take to make sure that power gets delivered to the ground...ie, is usable gains...

kannibul 12-25-2009 01:16 PM

Quote:

Originally Posted by BoBoTee (Post 341430)
You can't run 20psi on a stock block 370z like you can on the Sti or Evo. Those cars have a low compression 8.5:1 ratio made for boosting. The Z I think is 11:1 ratio. With high compression your are already generating alot of heat and adding an additional 20psi is going to blow the VQ37 to kingdomcome. I think the most boost you can run on the VQ37 from what I've read is around 8psi max on 93 oct. and that's considered high. When I had my Evo I was running 22psi daily driven and 24psi when in race mode all on 93octane.hehe.

butt dood, if you dont run 20spi, you can't hang with teh sti. :nutswinger:

Snakes709 12-25-2009 01:32 PM

I'll get serious. Here is a example i like to use.(numbers are just guessing) Say your power goal is 400whp. With the compression ratio of a evo (not sure what it is, lets just say 8:5:1) u will have to run 26psi of boost to hit that. However since the Z is 11:1 u will only have to run 5-6psi to hit that with the same turbo.

Modshack 12-25-2009 02:17 PM

Quote:

Originally Posted by KingDavid (Post 341446)
Different blocks, different applications, yada yada yada...Make a power goal for yourself and build towards that. You want good power and torque?


Exactly....Most Applications in the works for the Z will be in the 6-10psi area and punch you up 100hp (or more).

I work with Audi turbos all the time that will hold a steady 22-23psi, but that's a block that was originally designed as a diesel.

Every block has certain limitations to say nothing of the rods and bottom end.. Don't use PSI as the be all/end all

GoDZiLLa_845 12-25-2009 03:31 PM

Quote:

Originally Posted by G37Sam (Post 341474)
Godzilla you need to do a lot more reading IMO, you're too concerned with final numbers without giving a damn about the process :p

Goto HowStuffWorks - Learn How Everything Works! and read articles there. Read about how they work and all. We were all noobs once :)

I wish i finished my high school...i gtta go back and get my ged while its still early...im 20 and ive always been fascinated by cars since 5yrs old...when i was 5, the car i always talked about was the dodge viper, RT/10 tbe...for a few years i wanted to go to a school and learn ie lincolntech or itt or wyotech..i actually have a friend that goes to a school i cannot recall of the name, but he is ther for 2yrs now... he wants to become a porsche tech. but other than a school, you guys have any reccomendations? the most ive ever did to a car was install on my ex 06 m3 a cf diffuser and some foglights and swapping out my wheels. Ive always wanted a hands on exp. Yes i am a noob indeed...i am intimidated by you guys alot (ur logic in cars to be exact)...sorry for wasting all of your time (your as in all of you in general)

thnx

ps my posting suxx i know its just the way i say it..maybe u guys can teach me how... heh

LiquidZ 12-25-2009 03:50 PM

Quote:

Originally Posted by GoDZiLLa_845 (Post 341697)
I wish i finished my high school...i gtta go back and get my ged while its still early...im 20 and ive always been fascinated by cars since 5yrs old...when i was 5, the car i always talked about was the dodge viper, RT/10 tbe...for a few years i wanted to go to a school and learn ie lincolntech or itt or wyotech..i actually have a friend that goes to a school i cannot recall of the name, but he is ther for 2yrs now... he wants to become a porsche tech. but other than a school, you guys have any reccomendations? the most ive ever did to a car was install on my ex 06 m3 a cf diffuser and some foglights and swapping out my wheels. Ive always wanted a hands on exp. Yes i am a noob indeed...i am intimidated by you guys alot (ur logic in cars to be exact)...sorry for wasting all of your time (your as in all of you in general)

thnx

ps my posting suxx i know its just the way i say it..maybe u guys can teach me how... heh

Don't apologize. We all start somewhere, just follow your dreams.

Togo 12-25-2009 06:29 PM

The RB26DETT is a turbo motor from the get go Godzilla, it's designed to hold boost. The VQ37VHR motor is a NA motor and not designed for the same purpose. If you want to boost the piss out of the 370Z's motor, get a built block complete with pistons, studs, rods, even sleeves if you wish, slap on a mammoth turbo kit and go to town. Be prepared to pay out the ass to do it though

RCZ 12-25-2009 07:14 PM

umm.... its all about compression. The STI has much lower compression than the Z because the STI is turbo from the factory and thats one way to make turbo cars safer. Lower compression engines need higher boost to achieve the same amount of power. A stock sti runs around 17psi. My built STI ran 25psi on a big turbo all day long. Some supras out there run 35 psi and some old turbo F1 cars ran upwards of 5 BAR, which is more than 60 PSI. (made 1200hp from a 1.3L motor)

So you aren't going to get flamed.

The Z has a higher compression engine because it is originally NA and thus it needs less boost to make power. Its not exactly the greatest idea to boost a high compression engine because theres greater stress on the internals, however it can be done safely. From what I've been reading the stock VQ37 can handle around 6psi. The other thing you have to keep in mind is the size of the turbo in relation to its efficiency zone. A big turbo will have a much easier time making 20psi than a smaller turbo will. When a turbo goes beyond it's efficiency zone, it starts blowing very hot air which is not a good thing for making power or for engine longevity. I'm not going to go into CFM and flow volume, but thats also part of the equation.

Anyway, no there aren't any VQ37 Z's running 20psi because as far as I know, no one has modified internals to lower the compression. 20psi on a stock 370z = 1000rwhp+ for like 2 seconds before it blows itself to pieces.

370Zsteve 12-25-2009 07:48 PM

Quote:

Originally Posted by GoDZiLLa_845 (Post 341697)
I wish i finished my high school...i gtta go back and get my ged while its still early...im 20 and ive always been fascinated by cars since 5yrs old...when i was 5, the car i always talked about was the dodge viper, RT/10 tbe...for a few years i wanted to go to a school and learn ie lincolntech or itt or wyotech..i actually have a friend that goes to a school i cannot recall of the name, but he is ther for 2yrs now... he wants to become a porsche tech. but other than a school, you guys have any reccomendations? the most ive ever did to a car was install on my ex 06 m3 a cf diffuser and some foglights and swapping out my wheels. Ive always wanted a hands on exp. Yes i am a noob indeed...i am intimidated by you guys alot (ur logic in cars to be exact)...sorry for wasting all of your time (your as in all of you in general)

thnx

ps my posting suxx i know its just the way i say it..maybe u guys can teach me how... heh

You'll be making the right move if you learn a trade. A mechanic cannot be outsourced to China. Learn to build things, to fix things. Better than a college education these days.

RCZ 12-25-2009 07:56 PM

Quote:

Originally Posted by 370Zsteve (Post 341844)
You'll be making the right move if you learn a trade. A mechanic cannot be outsourced to China. Learn to build things, to fix things. Better than a college education these days.

Hardly true, but better than nothing, yes.

370Zsteve 12-25-2009 08:25 PM

Quote:

Originally Posted by Modshack (Post 341664)
Exactly....Most Applications in the works for the Z will be in the 6-10psi area and punch you up 100hp (or more).

I work with Audi turbos all the time that will hold a steady 22-23psi, but that's a block that was originally designed as a diesel.

Every block has certain limitations to say nothing of the rods and bottom end.. Don't use PSI as the be all/end all

Not to mention the VQ has an aluminum block. Although I think even the EVOs are aluminum now, which is just amazing considering the boost levels involved.

Chris@FsP 12-26-2009 10:19 AM

OP- do you even OWN a Z?

FuszNissan 12-26-2009 10:52 AM

20psi....sign me up! Is there a new engine out?

kannibul 12-26-2009 10:59 AM

Quote:

Originally Posted by FuszNissan (Post 342252)
20psi....sign me up! Is there a new engine out?

Yeah, the 2009.66!

FuszNissan 12-26-2009 11:20 AM

I can appreciate your joke, but I am not going to touch that one anymore.

Modshack 12-26-2009 02:25 PM

Quote:

Originally Posted by FuszNissan (Post 342300)
I can appreciate your joke, but I am not going to touch that one anymore.

Flawless response....:tup:

FuszNissan 12-26-2009 03:37 PM

Quote:

Originally Posted by Modshack (Post 342618)
Flawless response....:tup:

:shakes head::bowrofl:

Nixlimited 12-26-2009 05:22 PM

Quote:

Originally Posted by 370Zsteve (Post 341436)
Just curious, how did the Mitsu engine hold up under 22psi/24psi? Any smoke coming out of the exhaust that was maybe darker then usual? I wish I had a dime for every Evo and WRX I've seen over the past few years that were burning oil at an alarming rate.

I ran my STi at 22 PSI on the street and 30 PSI on race gas (with GT30R .82AR), and it burned less oil than my N/A M3.


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