Any 370s running higher than 20psi?

GoDZiLLa_845 · 12-25-2009, 03:31 PM

Quote:

Originally Posted by G37Sam

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

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

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.

370Zsteve · 12-25-2009, 07:48 PM

Quote:

Originally Posted by GoDZiLLa_845

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

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.

GoDZiLLa_845 · 12-28-2009, 12:29 AM

Quote:

Originally Posted by 370Zsteve

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.

the only trade i know is construction...my dad is contractor...boring but good $$..but i wanna do sumthn to enjoy too..so suggest i get ged or?

kannibul · 12-25-2009, 01:14 PM

Quote:

Originally Posted by GoDZiLLa_845

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...

370Zsteve · 12-29-2009, 06:31 PM

Quote:

Originally Posted by kannibul

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...

LOL and Priceless +1 rep

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.

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.

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

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

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

Flawless response....

12-25-2009, 01:32 PM	#8 (permalink)
Snakes709 A True Z Fanatic Join Date: Aug 2009 Location: Edmonton Posts: 1,205 Drives: 2011 Evo-X GSR Rep Power: 19	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. Last edited by Snakes709; 12-25-2009 at 01:37 PM.

12-25-2009, 06:29 PM	#9 (permalink)
Togo A True Z Fanatic Join Date: May 2009 Location: E. Northport, NY Posts: 7,597 Drives: Stuff Rep Power: 659	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 __________________ This will decimate all after you put about fifteen grand in it or more, and if we have to, overnight parts from Japan. Joe Clem and Koeppel Nissan

12-26-2009, 10:52 AM	#12 (permalink)
FuszNissan A True Z Fanatic Join Date: May 2009 Location: St. Louis Posts: 14,275 Drives: Pure Sex Rep Power: 544	20psi....sign me up! Is there a new engine out? __________________ Mods: Too Many to list! LouFuszNissan ZDAYZ 2012

12-26-2009, 11:20 AM	#14 (permalink)
FuszNissan A True Z Fanatic Join Date: May 2009 Location: St. Louis Posts: 14,275 Drives: Pure Sex Rep Power: 544	I can appreciate your joke, but I am not going to touch that one anymore. __________________ Mods: Too Many to list! LouFuszNissan ZDAYZ 2012

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12-25-2009, 07:14 PM	#10 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1120	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.

12-26-2009, 10:19 AM	#11 (permalink)
Chris@FsP Enthusiast Member Join Date: Dec 2009 Location: Tulsa, OK Posts: 430 Drives: 2008 350Z TT Rep Power: 370	OP- do you even OWN a Z?

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