need pics of dual fuel pump's

gotta change our fuel delivery. currently we use a giant Aeromotive A-1000 pump. we have a 15gallon fuel cell, the pump is located underneath the cell in the spare tire area. meaning that the pump has to pull fuel up and over the side of the cell.

we would like to go to a dual pump setup out of tank, or we are thinking of making some brackets and mounting a single pump inside the cell. pump kit from the fuel cell manufacturer is too much money.

going to the junk yard and getting two whole intank pump assemblies off a hyundai.

-Brian

brianallmotor Wrote:
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> gotta change our fuel delivery. currently we use a
> giant Aeromotive A-1000 pump. we have a 15gallon
> fuel cell, the pump is located underneath the cell
> in the spare tire area. meaning that the pump has
> to pull fuel up and over the side of the cell.
>
> we would like to go to a dual pump setup out of
> tank, or we are thinking of making some brackets
> and mounting a single pump inside the cell. pump
> kit from the fuel cell manufacturer is too much
> money.
>
> going to the junk yard and getting two whole
> intank pump assemblies off a hyundai.
>
> -Brian

Well is there a question?
You say you're going to go get HYUNDAI???

Look, your car won't go without a fuel pump working correctly.
You REALLY want to put a seriously critical part, which you MAY VERY WELL HAVE TO SERVICE IN A RUSH sunk into the fuel cell---with all that entails about Fawking piss poor accessibility? And guaranteed mess and spilled gas etc when you have to get at the CRITICAL PART? With short time?


Maybe stick a 79-88 Saab 900 INTANK FEED PUMP/sump filter.
I pay maybe 7 bucks at my local yard.

Search here and the other place for piccies.

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John Vanlandingham
Sleezattle, WA, USA

Vive le Prole-le-ralliat

www.rallyrace.net/jvab
CALL +1 206 431-9696
Remember! Pacific Standard Time
is 3 hours behind Eastern Standard Time.

so you agree that with a fuel cell one should run an intank pump?

brianallmotor Wrote:
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> so you agree that with a fuel cell one should run
> an intank pump?


Low pressure lift pump, standard Saab, Volvo, Xratty intank and 2 Bosch high pressure pumps in the spare wheel well.

---

John Vanlandingham
Sleezattle, WA, USA

Vive le Prole-le-ralliat

www.rallyrace.net/jvab
CALL +1 206 431-9696
Remember! Pacific Standard Time
is 3 hours behind Eastern Standard Time.

ahhhhhhaaallrighty then. i will get the pumps, then post a pic of them to pump you up.

the pumps will be from some v6 car... hyundai, honda, ect... whichever has low miles. not too much choice at my junkyard

Heres a shot I took.

You dont have to use the million bucks worth of an stuff, but the basic layout will be the same. There was a switch up front to select pump 1, pump 2, or both I believe. I assume there was an intank lift pump too (premiere fuel cell) but I never checked.

Carl S Wrote:
-------------------------------------------------------
> Heres a shot I took.
>
> You dont have to use the million bucks worth of an
> stuff, but the basic layout will be the same.
> There was a switch up front to select pump 1, pump
> 2, or both I believe. I assume there was an
> intank lift pump too (premiere fuel cell) but I
> never checked.


This is a vermont car, isnt it? It's probably got a collector inside too, perhaps with the lift pump feeding the collector, then the high pressure pumps drawing from the supply there.

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Welcome to the cult of JVL drink the koolaid or be banned.

Yeah its a VSC built car.
The fuel cell was one system that we actually didnt have any issues with on the car, so I never got in to it to see how it was set up inside the cell.

What happens when the lift pump fails?

You replace the lift pumps IE Walbro's Once a year just because they are 79$

I always see fancy setups like this and wonder... If you are going to have a pump in the tank, and don't have an external collector tank to help with pickup issues, why don't you just put two walbro high pressure pumps in the tank on separate circuits and get rid of all the extra plumbing, pumps, points of failure, etc. in the trunk of the car. Obviously if you have starvation issues and need a collector tank to get every drop of fuel out of a stock-type tank, then I can see having a lift pump and a pressure pump outside the tank. To have 3+ pumps and all the associated extra crap in the car and still be worried about your one in-tank lift pump failing seems a bit silly. If you can just run external pumps only without issue, that's good too for ease of maintenance.

The big-$$ pro dual pump kit/sump box from Fuel Safe is just two hi-pressure Walbros Teed together in a trapdoor box. I don't see the need for all the external stuff if you have the 2 in-tank pumps on their own circuits/switches.

Andris

Carl S Wrote:
-------------------------------------------------------
> Heres a shot I took.
>
> You dont have to use the million bucks worth of an
> stuff, but the basic layout will be the same.
> There was a switch up front to select pump 1, pump
> 2, or both I believe. I assume there was an
> intank lift pump too (premiere fuel cell) but I
> never checked.


Good chance with the 044's there is not a lift pump, they can pull quite a bit of suction. With that setup and the lack of a swirl pot it just seems they are adding the ability to have a second pump at a flick of a switch. So not the goals of some of the other dual or tripple pump setups.

The team Ive worked with ran dual walbros in the tank, that feed a surge tank then a1000 was the pressure pump. The dual walbros were setup like the 044's above, a they never ran together just if one failed you could flip to the other one. Little more cost but it worked. THe fine thing about the walbros is there failure rate at low psi <10 is very low and when u use them as a lift pump they can do it well. THe issue is they do not like to be ran at 100% duty cycle all the time, so having a way to control them is a must. If you cant then a bosch 044 would be a better lift pump choice.

Maybe it's just ease of service with the pumps out of the tank?

I've yet to get into the dual pump setups, but I was planning on it if I ever do go through with the complete VW rebuild I plan on doing after Sno*Drift.

If the low pressure pumps have a low failure rate and are cheap to replace, you make those your throw away replacement every year. If you're running a couple of several hundred dollar high pressure pumps you run one until it dies, then switch to pump 2. Replace pump 1 after the rally and put new date sticker on it. Run pump 2 until it fails and go to pump 1.

I run one walbro external high pressure pump, it has no problem sucking the fuel out of the fuel cell. I've replaced it once in 3 years as preventative maintenence, at around $90. I might add another one next time just as insurance.
Only complaint is it's f'ing loud on transits.

-Martin.

My thoughts exactly. Have (2) walbro 255lph pumps in tank. Use one.

If it fails, flip the switch use the other.

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Michael LeCompte