1G Questions on external fuel pump install

[91talonts1]

Nothing but bare aluminum and I've seen quite a few ran on E that looked like the surface of the moon on the inside from corrosion. Some people don't seem to run into this problem for some odd reason, but I would recommend anodizing anything aluminum if you plan on using ethanol.

 

[bastarddsm]

I think the factory ones are anodized. Anyway, my fuel rails have had some light corrosion starting after a couple years.

 

[91talonts1]

I didn't think to warn you about it till I just took the car for a drive, but these things are very loud.
I got used to it after awhile, but the first thing I usually hear when someone gets in my car for the first time is "Is that your fuel pump?!".

 

[Kapok6]

I don't care about noise. It's got S2's and poly motor/trans mounts, no balance shafts, etc. Everything shakes/rattle. So what's a little whistling? Ha ha. Nothing but music to my ears. Hey, Magna, whistle me a melody, you beastly b*tch.

 

[91talonts1]

It's more like a hammer drill than a whistle .

 

[Kapok6]

I'm fine with either.

 

[DetroitStroker]

I had planned on running the wally 450 with Bosch 044 inline with my 2.0 long rod and hta82. But now this has me thinking.... I defiantly don't want to run a surge tank and have Considered a sumped cell.... but now the idea of running a pickup tube from a bulkhead on the stock hangar to the rear of the stock tank with a custom sock is defiantly on my mind.

 

[DetroitStroker]

Like other "siphon style" of liquid movement.... I wonder if a magnetic bottom to the filter/pickup could keep it fixed as close to the bottom as possible to try and avoid all sloshing issues

 

[GST with PSI]

I didn't think to warn you about it till I just took the car for a drive, but these things are very loud.

Yeah, same with the A1000 I'm running. You absolutely know when the pump is running, especially when outside the car. Inside the car it's actually fairly quiet, though.

 

[Kapok6]

I had planned on running the wally 450 with Bosch 044 inline with my 2.0 long rod and hta82. But now this has me thinking.... I defiantly don't want to run a surge tank and have Considered a sumped cell.... but now the idea of running a pickup tube from a bulkhead on the stock hangar to the rear of the stock tank with a custom sock is defiantly on my mind.

My issue with running pumps in parallel is I would think that the smaller of the two pumps will still be a restriction on the larger of the 2 pumps. I.E. if I have a walbro 450 in tank feeding a magnafuel external, the 450 is going to choke the magna. If a 450 could keep up with the volume/pressure of the magna, then I wouldn't need a magna to begin with. The external can only send forward what the internal can send to it I would think. It'd be like having a straw feeding a garden hose. The straw will never flow as much as the garden hose it's feeding.

 

[henrysan]

My issue with running pumps in parallel is I would think that the smaller of the two pumps will still be a restriction on the larger of the 2 pumps. I.E. if I have a walbro 450 in tank feeding a magnafuel external, the 450 is going to choke the magna. If a 450 could keep up with the volume/pressure of the magna, then I wouldn't need a magna to begin with. The external can only send forward what the internal can send to it I would think. It'd be like having a straw feeding a garden hose. The straw will never flow as much as the garden hose it's feeding.

Im not sure but I imagine under high pressure during boost the 450 in your example would be helping the magna push the fuel, or is that completly wrong?

 

[Kapok6]

Im not sure but I imagine under high pressure during boost the 450 in your example would be helping the magna push the fuel, or is that completly wrong?

That's a good point. We are going to need someone a little smarter than myself to chime in on that one.

On a side note:

@bastarddsm I found the pics of your fuel pickup. Mind sharing where you found the SS line? Can I get something like that at HD, Lowes, or an auto parts store, or do I need to get it somewhere online?

 

[bastarddsm]

I got it on ebay. You might find some at hobby lobby or a good hobby store. Shoot for .049" wall or thicker. welding the thinner stuff would suck.

 

[gsxeclipse102]

My issue with running pumps in parallel is I would think that the smaller of the two pumps will still be a restriction on the larger of the 2 pumps. I.E. if I have a walbro 450 in tank feeding a magnafuel external, the 450 is going to choke the magna. If a 450 could keep up with the volume/pressure of the magna, then I wouldn't need a magna to begin with. The external can only send forward what the internal can send to it I would think. It'd be like having a straw feeding a garden hose. The straw will never flow as much as the garden hose it's feeding.

You have to remember the intank pump is only pushing maybe a few psi. This means its able to flow a largee volume of flow. This also keeps the external pump happy by having a positive pressure at the inlet

Diesels use this concept. Lift pump feeding high pressure pump

 

[Kapok6]

I got it on ebay. You might find some at hobby lobby or a good hobby store. Shoot for .049" wall or thicker. welding the thinner stuff would suck.

I was actually going to try to get something thicker if I go this route, and just try the thread the tube onto the bulkhead since I can't weld.

If I do wind up running a 450 in tank with the magna external, obviously that would negate the need for this. Decisions decisions.

 

[bastarddsm]

Don't even piss around with the 450 if your doing a magna.

 

[jakelandry]

This may sound dumb but why not weld an oil pickup tube to the bottom of the sending unit? Also I feed my a1000 with a walbro 255 and had no fuel issues at 8500 rpm flowing 62 lb/min and it would build enough pressure to max the fpr pressure gauge at 125 psi. Not that that's as much as the op, but that's more than youll get out of just a 255 so the whole 255 is restricting the bigger pump to 255 idea isn't completely sound.

 

[Kapok6]

This may sound dumb but why not weld an oil pickup tube to the bottom of the sending unit? Also I feed my a1000 with a walbro 255 and had no fuel issues at 8500 rpm flowing 62 lb/min and it would build enough pressure to max the fpr pressure gauge at 125 psi. Not that that's as much as the op, but that's more than youll get out of just a 255 so the whole 255 is restricting the bigger pump to 255 idea isn't completely sound.

The oil strainer tube would actually be about the right size, but its not straight, so im not entirely sure how id get it to fit in there AND go down far enough into the fuel.

 

[biglady112]

It is steel you can shape it, form it, bend it, lengthen and shorten is anyway you would like. You are only limited by your imagination.

 

[Kapok6]

It is steel you can shape it, form it, bend it, lengthen and shorten is anyway you would like. You are only limited by your imagination.

Propane torch and a bench vise?

 

[biglady112]

Sure, if you are a cave man. All sorts of tools and things with fire to shape metal.

 

[Kapok6]

Cave man it is, because that's what I have at my disposal.

 

[Boomdeeze]

Just to throw my .02 in here! I run an Aeromotive Tsunami inline with an intank 255, the car made 581awhp while maxing out a Borg 259ett and had no signs of slowing down.

And just a side note, that inline Tsunami is mounted on my firewall which is loud... very loud.