Do I need a fuel return?

Randomizer23 · 09-16-2020, 09:57 PM

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!

Spooler · 09-16-2020, 11:44 PM

For safety reasons, YES. Get a CJ Motorsports return fuel system. Stay away from the AAM kit. It is junk.

DOOMMONKEY777 · 09-17-2020, 05:29 AM

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.

Randomizer23 · 09-17-2020, 10:07 AM

Quote:

Originally Posted by DOOMMONKEY777

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 · 09-17-2020, 10:08 AM

Quote:

Originally Posted by Spooler

For safety reasons, YES. Get a CJ Motorsports return fuel system. Stay away from the AAM kit. It is junk.

Thank you!

Spooler · 09-17-2020, 09:30 PM

Quote:

Originally Posted by Randomizer23

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.

DrBacon · 09-17-2020, 09:44 PM

Quote:

Originally Posted by Spooler

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 · 09-17-2020, 09:47 PM

Quote:

Originally Posted by DrBacon

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.

09-16-2020, 09:57 PM	#1 (permalink)
Randomizer23 Base Member Join Date: Jul 2020 Location: Ontario Posts: 89 Drives: 09 370Z GM MAN Rep Power: 6	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!

09-16-2020, 11:44 PM	#2 (permalink)
Spooler A True Z Fanatic Join Date: Jun 2014 Location: Ga Posts: 14,153 Drives: 2013 Nismo 370z Rep Power: 2684394	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.

09-17-2020, 05:29 AM	#3 (permalink)
DOOMMONKEY777 A True Z Fanatic Join Date: Sep 2010 Location: Crooklyn Posts: 1,014 Drives: 370Z 6psd-sport-pkg Rep Power: 22	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.

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