do i need to remove the fuel controller

[gregando]

I fitted a 044 inline with the stock L67 pump and filter yesterday, when start the car the pump makes a slight noise as it should but after a few seconds it gets noisy buzzing like mad and if i drive the car it goes quiet untill i stop and let it sit idling then it starts to buzz again. ive checked for leaks and cant see or smell any fuel , i am wondering if i need to remove the fuel controller? I am thinking the 044 is trying to suck more fuel than the stock pump will allow creating a restriction and the loud buzzing from the 044.

[delcowizzid]

you shouldnt run the 044 inline with any pump really fit a surge tank and let the stock pump fill the tank and use the 044 from the surge to engine.also the l67 has slow run fuel pump that slows fuel flow when at idle will do strange things

[gregando]

the l67 has slow run fuel pump that slows fuel flow when at idle will do strange things

yeah this is what i am talking about disconecting so the stock pump runs flatout all the time. I've read about plenty of people running the 044 inline without any hassles and i am wondering if they remove the dual stage fuel controller aswell?

[Pub247]

wouldnt have been easier to buy an intank pump like an 040 or walbro?

Sounds like what happening is at idle the stock pump is starving the 044 for fuel. causing it to be noisey which isnt good as itll ruin the pump quickly as they use fuel to lubricate and cool them.

I'm not sure how the stock setup works maybe it reduces voltage at idle to drop flow rate (this is just a geusstamite)

Are you running both pump of the same wiring/relay?

[delcowizzid]

will only flow as much fuel as the stock intank pump is pumping if you inline an 044 will be above stock due to no pressure on the pump but the 044 is going to be straining against the stocker.plus the surge is great for safety sakes when boosted stops you feeding the rails with air when you hang round righthand corners

[gregando]

yeah a surge tank would be the go but for the time being I found a post on another forum about how to disconect them i'll give that a crack till i can sort out a surge tank

[gregando]

[QUOTE=delcowizzid;1789290]will only flow as much fuel as the stock intank pump is pumping if you inline an 044 will be above stock due to no pressure on the pump but the 044 is going to be straining against the stocker.

but thinking about what you said here wouldnt a surge tank still let the larger pump to struggle agains the stocker at some stage ,taking into account that the fuel system is totally sealed and under pressure from pump to pump, the larger pump flow's more than the stocker and in turn it will want to suck more than the stocker can feed ,so at some stage i.e once the surge tank is full it will struggle regardles you would think. lol if you get what im on about.

[gregando]

wouldnt have been easier to buy an intank pump like an 040 or walbro?

Sounds like what happening is at idle the stock pump is starving the 044 for fuel. causing it to be noisey which isnt good as itll ruin the pump quickly as they use fuel to lubricate and cool them.

I'm not sure how the stock setup works maybe it reduces voltage at idle to drop flow rate (this is just a geusstamite)

Are you running both pump of the same wiring/relay?

the 044 is running a seperate relay and power supply ,its definately starving the 044 i'll disconect the fuel controller and see what happens and i went inline to keep it simple couldnt be f##ked dropping the fuel tank out.

[delcowizzid]

the engine allways returns fuel to the surge so its allways got full flow from the tank as well as all the leftovers from the engine

[gregando]

All sorted i removed the fuel pump controller and it stopped the sucka from buzzing.
its a easy job simply unplug the fuel pump controller and bridge the two purple wirers together and the two black wirers done full pressure all the time.

[HIROLLA]

you need a surge buy mine! cheap with all fittings

FS: Surge tank with lines and alloy base plate suit all cars - calaisturbo.com.au

you should never run an 044 inline with the intank pump you should always run a surge tank.

A surge tank acts as a smaller tank so each pump has its own tank so there not fighting against each other. The 044 will only flow what the stock pump flows if its inline which is pointless in having the 044!!