Nissan 370Z Forum  

Do I need a fuel return?

This is my first post on the forum and im glad to be here finally. I have been looking into forced induction and I have done some research on a

Go Back   Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain


Like Tree10Likes
  • 5 Post By Spooler
  • 2 Post By Randomizer23
  • 1 Post By Spooler
  • 1 Post By DrBacon
  • 1 Post By Rusty

Reply
 
LinkBack Thread Tools Display Modes
Old 09-16-2020, 09:57 PM   #1 (permalink)
Base Member
 
Join Date: Jul 2020
Location: Ontario
Posts: 89
Drives: 09 370Z GM MAN
Rep Power: 4
Randomizer23 is on a distinguished road
Default Do I need a fuel return?

This is my first post on the forum and im glad to be here finally. I have been looking into forced induction and I have done some research on a kit. I have decided on the Soho Stage 1 single kit. I am looking to make 520whp on 94 Canadian gas. Do I need a fuel return system? If so could you give some recommendations? Thanks!
Randomizer23 is offline   Reply With Quote
Old 09-16-2020, 11:44 PM   #2 (permalink)
A True Z Fanatic
 
Join Date: Jun 2014
Location: Ga
Posts: 13,467
Drives: 2013 Nismo 370z
Rep Power: 2684390
Spooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond repute
Default

For safety reasons, YES. Get a CJ Motorsports return fuel system. Stay away from the AAM kit. It is junk.
phunk, Rusty, madwi and 2 others like this.
Spooler is offline   Reply With Quote
Old 09-17-2020, 05:29 AM   #3 (permalink)
A True Z Fanatic
 
DOOMMONKEY777's Avatar
 
Join Date: Sep 2010
Location: Crooklyn
Posts: 1,008
Drives: 370Z 6psd-sport-pkg
Rep Power: 20
DOOMMONKEY777 has a reputation beyond reputeDOOMMONKEY777 has a reputation beyond reputeDOOMMONKEY777 has a reputation beyond reputeDOOMMONKEY777 has a reputation beyond reputeDOOMMONKEY777 has a reputation beyond reputeDOOMMONKEY777 has a reputation beyond reputeDOOMMONKEY777 has a reputation beyond reputeDOOMMONKEY777 has a reputation beyond reputeDOOMMONKEY777 has a reputation beyond reputeDOOMMONKEY777 has a reputation beyond reputeDOOMMONKEY777 has a reputation beyond repute
Default

I asked my self the same question be4 going twin turbo, I ended up NOT getting it because I was not pumping enough fuel for my pressure regulator to float open, which is when you need a stand alone pressure regulator and with a return system. But if am goin to burn E85 for example, I will need a 450fuel pump to pump a sufficient ammout, this will cause the OEM pressure regulator to float open forsing me to get a return system with a new pressure regulator.
__________________
Kids don't do Drugs, Drugs are bad, so let the professional druggies do Drugs for you. 537whp/496lb/tq@8-9PSI 93 octane

Last edited by DOOMMONKEY777; 09-17-2020 at 05:32 AM.
DOOMMONKEY777 is offline   Reply With Quote
Old 09-17-2020, 10:07 AM   #4 (permalink)
Base Member
 
Join Date: Jul 2020
Location: Ontario
Posts: 89
Drives: 09 370Z GM MAN
Rep Power: 4
Randomizer23 is on a distinguished road
Default

Quote:
Originally Posted by DOOMMONKEY777 View Post
I asked my self the same question be4 going twin turbo, I ended up NOT getting it because I was not pumping enough fuel for my pressure regulator to float open, which is when you need a stand alone pressure regulator and with a return system. But if am goin to burn E85 for example, I will need a 450fuel pump to pump a sufficient ammout, this will cause the OEM pressure regulator to float open forsing me to get a return system with a new pressure regulator.
Well I am not burning e85.... How do i know if I am pumping enough fuel for the pressure regulator to float open?
Randomizer23 is offline   Reply With Quote
Old 09-17-2020, 10:08 AM   #5 (permalink)
Base Member
 
Join Date: Jul 2020
Location: Ontario
Posts: 89
Drives: 09 370Z GM MAN
Rep Power: 4
Randomizer23 is on a distinguished road
Default

Quote:
Originally Posted by Spooler View Post
For safety reasons, YES. Get a CJ Motorsports return fuel system. Stay away from the AAM kit. It is junk.
Thank you!
Spooler and Gooch like this.
Randomizer23 is offline   Reply With Quote
Old 09-17-2020, 09:30 PM   #6 (permalink)
A True Z Fanatic
 
Join Date: Jun 2014
Location: Ga
Posts: 13,467
Drives: 2013 Nismo 370z
Rep Power: 2684390
Spooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond reputeSpooler has a reputation beyond repute
Default

Quote:
Originally Posted by Randomizer23 View Post
Well I am not burning e85.... How do i know if I am pumping enough fuel for the pressure regulator to float open?
You would have to put a fuel pressure gauge at the engine. Why take the chance for a lean out due to low fuel supply. You will blow your engine.
Rusty likes this.
Spooler is offline   Reply With Quote
Old 09-17-2020, 09:44 PM   #7 (permalink)
Enthusiast Member
 
Join Date: Nov 2016
Location: Washington
Posts: 285
Drives: 2014 Nismo
Rep Power: 27364
DrBacon has a reputation beyond reputeDrBacon has a reputation beyond reputeDrBacon has a reputation beyond reputeDrBacon has a reputation beyond reputeDrBacon has a reputation beyond reputeDrBacon has a reputation beyond reputeDrBacon has a reputation beyond reputeDrBacon has a reputation beyond reputeDrBacon has a reputation beyond reputeDrBacon has a reputation beyond reputeDrBacon has a reputation beyond repute
Default

Quote:
Originally Posted by Spooler View Post
You would have to put a fuel pressure gauge at the engine. Why take the chance for a lean out due to low fuel supply. You will blow your engine.
There are other reasons a car could lean out too. I've had mine lean out during mild spirited driving on all season tires with half a tank of gas. I've known about the fuel starvation issue but the false information I've read on it seems to think that can only happen when you're using summer tires on a track with enough g-force to starve the pump.

Luckily my **** didn't blow up but my tuner was not happy with me when he saw the log.
Rusty likes this.
DrBacon is offline   Reply With Quote
Old 09-17-2020, 09:47 PM   #8 (permalink)
Ronin Samurai - Assassin
 
Rusty's Avatar
 
Join Date: Dec 2011
Location: Fayettenam,Pennsyltucky
Age: 68
Posts: 34,813
Drives: 2011 Nismo GM 6M
Rep Power: 2684436
Rusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond repute
Unhappy

Quote:
Originally Posted by DrBacon View Post
There are other reasons a car could lean out too. I've had mine lean out during mild spirited driving on all season tires with half a tank of gas. I've known about the fuel starvation issue but the false information I've read on it seems to think that can only happen when you're using summer tires on a track with enough g-force to starve the pump.

Luckily my **** didn't blow up but my tuner was not happy with me when he saw the log.
You can get fuel starve on the street. It's happened to a few people.
Spooler likes this.
__________________

浪人 - 殺し屋
"The Difficult Anytime, The Impossible By Appointment Only"
http://www.the370z.com/members-370z-...o-journal.html
Rusty is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
AAM fuel return MikesZ Engine & Drivetrain 0 07-12-2018 03:10 PM
[WTB] CJM Fuel Return or any nschutt338 Parts for sale (Private Classifieds) 14 07-26-2017 12:21 PM
Fuel return StillenZ84 Forced Induction 17 01-27-2017 09:02 PM
[FOR SALE] Fuel return system, fuel rails, oil cooler cores Jshvr Parts for sale (Private Classifieds) 38 11-16-2016 04:25 PM
Fuel Return Option O&G Engine & Drivetrain 6 10-01-2013 08:40 PM


All times are GMT -5. The time now is 10:23 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2