A Small Q? (Fuel Pump)

[wurgle]

I've flicked through the search but not enough info for me I've got a 96 BG5 just had the pump replaced job cost me around 640 for the pump new as I didnt wanna take chances on 2nd hand gear, I hit ripco up and they had the same pump for over 800, anyone know the deal on the cost of these things? when TMe has them for a 3rd of the price new, fuel filter will be next on the list for it anyway but I'm just curious.

Cheers Guys!

[zarnah]

whaaaaaaaaaat the fark??? that seems excessively overpriced to me? I do remember buying a genuine subaru fuel pump from roscos in Ashburton (brand new) and it was like $200 odd

[smokn4]

cheaper to get a walbro ...but thats not news

[Guest]

 wurgle said:

I hit ripco up and they had the same pump for over 800,

that would be ripco for ya, go with walbro wrx one i don't believe they make one legacy (i couldn't get one) i used a wrx one and swap the bags legacy one is bigger

[mattapo]

I put a walbro 500hp in my bg, cost 190, took 20 min to fit

[wurgle]

The price I pay for genuine parts I guess *sigh* needed it done that day for work otherwise I would've looked into it harder, thanks for the replies guys.

[Guest]

 mattapo said:

I put a walbro 500hp in my bg, cost 190, took 20 min to fit

If you dont have an after market reg or 2 standard regs you will have overfueling at idle with the walbro.

[wrx_lou]

I never had that problem.

[mattapo]

 caged']

[quote name='mattapo said:

I put a walbro 500hp in my bg, cost 190, took 20 min to fit

/quote]

If you dont have an after market reg or 2 standard regs you will have overfueling at idle with the walbro.

split fuel rail and a link

[Guest boostcut]

 caged']

[quote name='mattapo said:

I put a walbro 500hp in my bg, cost 190, took 20 min to fit

/quote]

If you dont have an after market reg or 2 standard regs you will have overfueling at idle with the walbro.

what a load of shit. a regulator will "regulate" what ever it is set to.

therefore, excessive psi will be dumped to tank.

a walbro is a basic mod that many people do without an aftermarket reg and have no problems.

where did you get this info?

[Guest]

 boostcut']

[quote name='mattapo said:

I put a walbro 500hp in my bg, cost 190, took 20 min to fit

/quote]

If you dont have an after market reg or 2 standard regs you will have overfueling at idle with the walbro.

what a load of s***. a regulator will "regulate" what ever it is set to.

therefore, excessive psi will be dumped to tank.

a walbro is a basic mod that many people do without an aftermarket reg and have no problems.

where did you get this info?

Put a fuel pressure gauge on at idle and tell me if your pressure stays the same as pre walbro. Its enough for the long term fuel trims to be able to compensate if everything else is good but its still not a linear pressure. The walbro over powers the standard fuel reg and it cant dump off the excess fuel.

My info is from real world experience not something iv read on the interweb.

[Guest boostcut]

i think your pressure gauge is faulty bud. a regulator is a regulator. you cant tell me it will change its settings because of a change of fuel pump..

also, i dont take anything from the internet. i have worked with cars/hydraulics( pressures etc) for a while now.

but ive had my say, so keep arguing if you will.

[ReubenH]

Caged, you'd be the first to bring this up, maybe your original regulators were fucked? Cause i aint ever head of this before

Been running a walbro in mine for nearly a year now, never had a single issue, never noticed any differences, car does not run any richer than it did before.

Was $180 though GFB, install took less than an hour in my BG, and i had never done one before.

[pl0x]

+1 for no issues even when standard

[Guest]

There have been cases of a larger fuel pumps (walbro included) causing idle issues / overfueling with stock regulators.

Not on every car.. but sometimes the walbro over powers the standard fuel pressure regulator when the engine is not consuming lots of fuel like on idle or cruise

[zarnah]

 Qwerty said:

There have been cases of a larger fuel pumps (walbro included) causing idle issues / overfueling with stock regulators.

Not on every car.. but sometimes the walbro over powers the standard fuel pressure regulator when the engine is not consuming lots of fuel like on idle or cruise

in which case im guessing the stock reg is not working 100% and needs to be replaced anyhow

[Guest]

 boostcut said:

i think your pressure gauge is faulty bud. a regulator is a regulator. you cant tell me it will change its settings because of a change of fuel pump..

also, i dont take anything from the internet. i have worked with cars/hydraulics( pressures etc) for a while now.

but ive had my say, so keep arguing if you will.

the 190lph pumps are fine its just the 255lph. My gauge is fine and iv found this on 10+ cars (evos,hondas,wrxs). If you cut open a standard subaru reg you will find that it has a restrictor on the return which limits the amount of fuel that can be bypassed. It physicaly cant bypass enough fuel past the reg and it causes raised fuel pressure untill you start using more fuel. This is not new, google "walbro fuel pump over fueling" if you dont believe me. Alot of people wont notice but if you have a scan tool check out your stft and ltft which will usually compensate for the pressure increase.