Is the fuel lab pump loud at all? My fass sure does hum, i miss the silent stock pump.

 

Twin 044's anyone?

 

That's sharp looking, but given the tank size, you'd NEVER pass a fuel stop!!

 

I'm still not getting what I wanna know...

I want to make sure that I have what it takes to supply UP to 70+ PSI to my injectors without having much drop at WOP. Can I do that with stock components provided I do all the anti-air mods? I think I'll probably go with the 044 though... that looks good. I just don't really want to increase my line sizes if I don't have to. Alot of you guys have experience with this... when you did your mods, were fairly stock components able to keep up?

 

Just get ya self a Walbro bro. $115 ya cant go wrong

 

Can (pause) the stock pump keep up without a massive PSI drop at WOT?

In regards to your question Jonathan, first thing you and I both need to do is the in tank mods and get rid of those quick connects to ELIMINATE air being sucked into the lines and reduce how much the pump has to work at getting fuel out of the bottom of the tank. That alone will help our PSI stay more stable, though at this time I don't know how much more stable. I will be ordering a fuel pressure gauge and doing tests when finances allow.

 

Sure, it ain't much... but reliability is important. I just don't think the cheap price is worth it... but that Bosch 044 is looking pretty sweet.

 

stock fuel system will support 450 HP without a problem..just do the in tank mod and a regulated return to fix the air problem..

if i was going to stay under the 450 mark Kwikk's in tank pump would be the rout i would go...the pump would last a lot longer because its doing what its made to do..push fuel not suck fuel...

 

So, are you saying that if the pump was in the tank, it'd last longer? Well with that in mind, look at the first pump on this page (the 044 is right below it):

Bosch Fuel Pumps

It's actually a little better than the 044 and it is also it's own pickup. What do you guys think?

 

The stock Ford pump will keep up with that just fine. The biggest problem with Ford's design is it tends to get clogged up at the pickup screens and then the fuel flow is severly restricted.
There are two small round screens inside the mixing chamber inside the tank and there is another screen inside the inlet of the fuel pump.
It's very easy to get those screens clogged with debris if you get a tank full of junk fuel.
It's very hard to clean out said debris once it's there, especially the screen inside the pump. Might as well toss it and get a new one, there is no way to get at that screen to clean it out without cutting open the pump.

I've seen the pump that I am using go for 200,000 miles and the car wears out before the pump fails running on gasoline which has basically zero lubricating properties at all.
I don't see it having any problems running with diesel.
What it's application is for is a 1980-1984 VW gas engine Rabbit.
It has exactly the same innards as the 044 pump, right down to the pump diameter, in fact all of the pumps are basically the same with the only difference being the outer shell, electrical connectors, and the fittings at each end.
All are fully submersable in 100% fuel, you just have to make sure that the plastic label that they glue on at the factory is removed.
The label will survive in fuel just fine, but the glue that holds it on will melt and then you will have that label floating around in the tank like a sheet of plastic.
The reason that I chose the one that I am using is you can use the pickup screen off of the Ford fuel pickup and install it directly to the end of the fuel pump inlet without modifying a thing.
There is also no filter screen inside the pump to get clogged up with debris, but IMO that's not an issue as long as you have the pickup screen installed like this.
The fuel filter will catch anything that passes through, that's it's job, it will not end up at the injectors.
And these pumps are not that expensive.
Here is one for sale on Ebay for $55.00.

79-93 VW Cabriolet Fuel Pump New Hayg Bosch Walbro OEM: eBay Motors (item 220552180435 end time Jun-05-10 19:37:38 PDT)

That's less than I can get it for wholesale.
The only mod that you have to do to it is to drill out the check valve at the outlet and then weld a pipe to the end of it like this.

 

One thing about that Ebay link.

MAKE SURE that what they are going to send you is a BOSCH pump, not some substitute brand. Bosch is the only pump for that application that I know of that has a metal body.
The others are smaller inside and have a plastic body.

 

That pump is open ended on the bottom, no easy way to attach a screen to.
It's a good pump but it's design is to be encased in a screen like a cocoon.
Again, basically the same innards as the 044 pump but without any sort of fitting for an inlet.
I might have one laying around at the shop.
If so I'll post some better pictures than that one.
They are used on 1985-1992 VW Golf, Jetta gas engines with a rather unusual design that has a low pressure, high volume pump in the tank that fills a small vessel that houses the main fuel pump.
I actually considered mounting one of those on my truck before I put the pump in the tank, but decided against it because the small high volume low pressure pump has a propensity to fail every 40,000 miles or so and then the main pump starts to gulp air and give that mad bee sound.
.
Really folks, the BEST location for a fuel pump is where I have it mounted.
ZERO shortage of fuel volume and if you ever accidentally run out, there is no problems with trying to get the fuel system primed back up to restart the engine.

 

Ok, here's kinda what I've concluded from what's been said so far... the pump lasts longer and works less harder when in the tank, but due to the fact it has a screen INSIDE it, it can get plugged. For that reason, I DON'T wanna put the stock pump in the tank. But, the pump I picked out made for in-tank applications would work if I could encase it in a screen. But, provided the stock pump at it's stock location is getting enough fuel (fuel without air at that), it should last a good long while. I think that's half the reason I'm having the problem I am now... for the first pump to last 220K and the second one to last barely 60K, it would make sense that my mixer is plugged up. When my tank level goes down, I'm gonna go ahead and do the in-tank mods. If not this week, next week... hopefully.

 

that's a good conclusion and I completely agree, I'm in the same page as you my friend though my pump has not failed as of yet though I believe it to be crying out asking for me to fix something and I will be answering.

 

Yup... I think I'm gonna leave the pump where it is and see what it does. Unless I have any issues with keeping up, I'll either add a lift pump, or put the pump in the tank. I think I'll probably go with a lift pump just to keep everything OUT of the tank. But I like the 044 and I'm pretty sure I'll go with something like that. You guys have been awesome!