Dedicated relay on s13 - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

c-los13 · 07-02-2012, 01:54 PM

I just got an email from Martin (Enthalphy RS, btw awesome guy) saying that i need to run a "dedicated relay for my fuel pump"

i did some research and found old articles.
anybody got any info on this?
s13 sr20det

lok · 07-02-2012, 01:59 PM

google "fuel pump hard wire"

intel5811 · 07-02-2012, 02:30 PM

You mean you put a sr in an sr and someone told you to run a separate relayed line to make your fuel pump work?????

c-los13 · 07-02-2012, 06:03 PM

ive had my sr running for a while with a walbro fuel pump and it worked fine,idk why Martin said to run a "dedicated relay"
im runnning race gas on my second tune maybe thats why

Memberofthe600hpkaclub · 07-02-2012, 06:07 PM

Because that wiring is getting old...and its better safe then sorry

c-los13 · 07-02-2012, 06:10 PM

i really appreciate everybodys input

bejota180sx · 07-02-2012, 06:38 PM

most of the time the old wiring doesn't provide enough power to the pump, when you relay the fuel pump directly from the battery you reduce the chance of the pump not having enough power, it's a simple and cheap mod. Maybe he doesn't want you to risk not having enough power to the pump and damage your engine with the tune since he does his tunes with the idea that the car is under good conditions...

c-los13 · 07-02-2012, 06:39 PM

ok i understand,ima do this mod before installing the ecu!
thanks!

cotbu · 07-02-2012, 11:21 PM

This is one of the mods, every swap should have done!
If you have problems or question's, I watching!
Is this a race car or street car?

c-los13 · 07-23-2012, 09:13 PM

street car
pump has been working fine
didnt need this dedicated relay after all
im still gonna install one soon to prevent future problems

Croustibat · 07-24-2012, 03:07 AM

you already have a relay, it is commanded by the ECU. What you need is replace the thin cables by thicker cables.

cotbu · 07-24-2012, 07:28 AM

I'm sure he means hot wire mod for the fuel pump! "dedicated relay" is being used like the terms "limp mode" or "bogging"!

07-02-2012, 01:54 PM	#1
c-los13 Zilvia Junkie Join Date: Feb 2010 Location: Edinburg, Texas Age: 36 Posts: 446 Trader Rating: (0) Feedback Score: 0 reviews	Dedicated relay on s13 I just got an email from Martin (Enthalphy RS, btw awesome guy) saying that i need to run a "dedicated relay for my fuel pump" i did some research and found old articles. anybody got any info on this? s13 sr20det

07-02-2012, 11:21 PM	#9
cotbu Post Whore! Join Date: Sep 2005 Location: SWFL Age: 50 Posts: 3,318 Trader Rating: (3) Feedback Score: 3 reviews	This is one of the mods, every swap should have done! If you have problems or question's, I watching! Is this a race car or street car? __________________ LoverTechnologies "Half Broken Things!"

07-24-2012, 07:28 AM	#12
cotbu Post Whore! Join Date: Sep 2005 Location: SWFL Age: 50 Posts: 3,318 Trader Rating: (3) Feedback Score: 3 reviews	I'm sure he means hot wire mod for the fuel pump! "dedicated relay" is being used like the terms "limp mode" or "bogging"! __________________ LoverTechnologies "Half Broken Things!"

07-02-2012, 01:59 PM	#2
lok Zilvia Addict Join Date: Jul 2003 Location: Oklahoma Posts: 816 Trader Rating: (10) Feedback Score: 10 reviews	google "fuel pump hard wire"

07-02-2012, 02:30 PM	#3
intel5811 Zilvia Member Join Date: Jul 2011 Location: Los Angeles Posts: 215 Trader Rating: (10) Feedback Score: 10 reviews	You mean you put a sr in an sr and someone told you to run a separate relayed line to make your fuel pump work?????

07-02-2012, 06:03 PM	#4
c-los13 Zilvia Junkie Join Date: Feb 2010 Location: Edinburg, Texas Age: 36 Posts: 446 Trader Rating: (0) Feedback Score: 0 reviews	ive had my sr running for a while with a walbro fuel pump and it worked fine,idk why Martin said to run a "dedicated relay" im runnning race gas on my second tune maybe thats why

07-02-2012, 06:07 PM	#5
Memberofthe600hpkaclub Zilvia FREAK! Join Date: Sep 2008 Location: Florida Age: 38 Posts: 1,039 Trader Rating: (17) Feedback Score: 17 reviews	Because that wiring is getting old...and its better safe then sorry

07-02-2012, 06:10 PM	#6
c-los13 Zilvia Junkie Join Date: Feb 2010 Location: Edinburg, Texas Age: 36 Posts: 446 Trader Rating: (0) Feedback Score: 0 reviews	i really appreciate everybodys input

07-02-2012, 06:39 PM	#8
c-los13 Zilvia Junkie Join Date: Feb 2010 Location: Edinburg, Texas Age: 36 Posts: 446 Trader Rating: (0) Feedback Score: 0 reviews	ok i understand,ima do this mod before installing the ecu! thanks!

07-23-2012, 09:13 PM	#10
c-los13 Zilvia Junkie Join Date: Feb 2010 Location: Edinburg, Texas Age: 36 Posts: 446 Trader Rating: (0) Feedback Score: 0 reviews	street car pump has been working fine didnt need this dedicated relay after all im still gonna install one soon to prevent future problems

07-24-2012, 03:07 AM	#11
Croustibat Nissanaholic! Join Date: Aug 2011 Location: France - Toulouse Age: 44 Posts: 1,851 Trader Rating: (0) Feedback Score: 0 reviews	you already have a relay, it is commanded by the ECU. What you need is replace the thin cables by thicker cables.