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Is It Really Worth Doing The 13.8v Mod For Fuel Pump?

chef_stagea

By chef_stagea,
in South Australia

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chef_stagea Grand Master

chef_stagea

Posted
Posted

my new walbro gss342 arrived today for the stag...

was going to wack it in. is it really worth doing this mod that you wire it up to get a constant voltage.. or should u just put new fuel lines onto the pump and fresh wires leading up to the top of the tank??

http://www.skylinesaustralia.com/forums/wi...mp-t234796.html i

i was going to follow this...

Brezza Proficient

Brezza

Posted
Posted

i was told by Sean at boostworx that its not really needed, i've got a GTR and he told me the wiring on it is fine and there is no real point. its other cars like silvia's and 180's that might benefit from rewiring it.

slippylotion Mentor

slippylotion

Posted
Posted (edited)

I use a Walbro in my 180SX.With pump set up with standard wiring it had bugger all fuel pressure as it would only get around 9volt max.

I then wired it with bigger gauge wire for power via battery and standard fuel pump relay and new earth, it then gave perfect fuel pressure running the pump at near on 14 volt.

Walbro pumps need to be getting near on 14volt to work at their best. And as always keep the earth wire as short as possible.

Edited by slippylotion
Krishy Grand Master

Krishy

Posted
Posted
I use a Walbro in my 180SX.With pump set up with standard wiring it had bugger all fuel pressure as it would only get around 9volt max.

I then wired it with bigger gauge wire for power via battery and standard fuel pump relay and new earth, it then gave perfect fuel pressure running the pump at near on 14 volt.

Walbro pumps need to be getting near on 14volt to work at their best. And as always keep the earth wire as short as possible.

thats some good info to know.....not sure if the bosch and the walbro are the same but mine has worked fine for the last 2 years

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