Inline fuel pump install (pics)

[ThirdStrike]

thought id share in case any of you guys are thinking about doing this:
so here are some shots of how I installed my wahlbro 255 inline. This was probably the easiest inline pump install I've done. the b5 chassis seems like its ready to take a pump from the factory. cant even really tell its aftermarket.




the holes in the frame worked perfect. wonder why those holes are there

the hardest part was finding a line that made a bend of around 120 degrees to go back into the engine bay. the line i used is a oem fuel line from a 1.8t.^

a etka of the wire position from the central electrical panel that's above your left knee as you sit in the driver seat. pump is powered on when the motor turns over, not on turn key [wire position is circled]

[spinny]

Any point to using an inline over an upgrade intank??

[ThirdStrike]

Any point to using an inline over an upgrade intank??

ha intank
vs
inline
the wahlbro cost me 145 bucks shipped.
provides plenty of pressure on the rail good for as much hp as any ots stage 3 makes, and its after the filter.
its not a must, but its just peace of mind for me.
a failing stock intank pump could lose pressure under full load.

[spinny]

I just heard a few horror stories about in line pumps failing.

[ThirdStrike]

I just heard a few horror stories about in line pumps failing.

-they fail open, i can unplug it and run all day without any issues
-ill immediately know if it fails because i wont be able to hear it anymore
-and yes the wahlbros have been prone to failure so i hear. had one on my vr6 and it never failed on me tho

p.s. most of the intank aftermarket solutions are just a pushing pump (inline) adapted to the stock pump housing

[veggiemonster]

so you have a stock in tank, with a 255 inline?

[ThirdStrike]

so you have a stock in tank, with a 255 inline?

yezzir

[pac1085]

Pretty stupid idea if you ask me. If you did your research you'd find out that you can install an in-tank walbro (gss340 or 342) for about $110. I know people putting down over 600whp with a single intank walbro. You don't need to buy the 044.

[Team Freddy]

Pretty stupid idea if you ask me. If you did your research you'd find out that you can install an in-tank walbro (gss340 or 342) for about $110. I know people putting down over 600whp with a single intank walbro. You don't need to buy the 044.

This has to be the Dumbest reply I have ever seen.

[SlowGolf]

Im on a stock + inline fuel pump with over 400whp no issues. How is that a stupid idea? Its been proven soooooooooooooooooooo many times.

[ThirdStrike]

Pretty stupid idea if you ask me. If you did your research you'd find out that you can install an in-tank walbro (gss340 or 342) for about $110. I know people putting down over 600whp with a single intank walbro. You don't need to buy the 044.

lol
right because a failing wahlbro inside your gas tank is easier to recognize than what i did...
oh yah and its much easier to remove the stock fuel pump and install the inline too right?
(*edit) oh yah and a pushing pump in your tank makes much more sense than a pulling one(stock) too right?

[veggiemonster]

lol
right because a failing wahlbro inside your gas tank is easier to recognize than what i did...
oh yah and its much easier to remove the stock fuel pump and install the inline too right?
(*edit) oh yah and a pushing pump in your tank makes much more sense than a pulling one(stock) too right?

i dont understand why you would want a push type? why why why?

then again why do they still make the pontiac vibe

[megafreakindeth]

generic walbro aftermarket, oe replacement stuff fails. usually due to people driving with low gas tanks and just abuse. twice ive seen em fail in saabs because some retard jammed the fuel pump can back into the tank and pinched the return line. cant blame walbro for that.

their hipo stuff lasts forever as far as i can tell im still doing the research on my cars.

as for running an inline AND intake pump this is acutally a great idea. first off it reduces the wear on the intank pump so itll help you avoide having to drop the tank on some cars. you can even leave a dead intank pump in the car and use an inline pump to just suck through the intake pump no problem. having two pumps also allows the entire fuel system between the two pumps to have no pressure, this reduces pump wear, heat on the gas, and reduces starvation under high demand. almost all race cars use them with a swirl pot but theres no room to install one of those in our cars.

[mike-2ptzero]

Pretty stupid idea if you ask me. If you did your research you'd find out that you can install an in-tank walbro (gss340 or 342) for about $110. I know people putting down over 600whp with a single intank walbro. You don't need to buy the 044.

Just not in an Audi though. Even the 044 is limited to about 600awhp on an A4/S4.

My walbro Gss340 maxed out at about 500awhp on 110 octane.

lol
right because a failing wahlbro inside your gas tank is easier to recognize than what i did...
oh yah and its much easier to remove the stock fuel pump and install the inline too right?
(*edit) oh yah and a pushing pump in your tank makes much more sense than a pulling one(stock) too right?

What? When a single pump fails the car stops making full power. Pretty sure anyone is going to figure their in-take pump fails once the car starts slowing down. If your in-take pump fails your car will do the same since the intake pump is no longer sending fuel to your intake pump.

All you did was add a pump to move a little more fuel then your stock one already moves. This just means you now have 1 more part that can fail.

[ThirdStrike]

What? When a single pump fails the car stops making full power. Pretty sure anyone is going to figure their in-take pump fails once the car starts slowing down. If your in-take pump fails your car will do the same since the intake pump is no longer sending fuel to your intake pump.

All you did was add a pump to move a little more fuel then your stock one already moves. This just means you now have 1 more part that can fail.

keeping constant pressure on the rail was my goal.
with how easy/cheap this was to accomplish i see it as a success

a dirty filter can cause loss of pressure, and stock pumps dont always fail period. sometimes its gradual, starting with loss of pressure.
i have no idea when/how my stock pump would fail. again its just peace of mind.

and if the inline fails it fails open. who cares

i dont understand why you would want a push type? why why why?

then again why do they still make the pontiac vibe

are you dense? think about what you just asked...

[s2the4]

Im on a stock + inline fuel pump with over 400whp no issues. How is that a stupid idea? Its been proven soooooooooooooooooooo many times.

I think it is more of just a piece of mind for some people. When I went stage 3 I decided to go with an RS4 fuel pump because at the time there was nothing else available. Then 4 months later Bosch came out with the motorsports so I paid 795 for the rs4 and could have gotten the Bosch 044 with everything for 400. But no complaints the rs4 pumps 175lph, the stock pump flows 155lph, and the Bosch 044 255lph. The S4 runs awesome at 165+ never run out of fuel!

[mike-2ptzero]

keeping constant pressure on the rail was my goal.
with how easy/cheap this was to accomplish i see it as a success

a dirty filter can cause loss of pressure, and stock pumps dont always fail period. sometimes its gradual, starting with loss of pressure.
i have no idea when/how my stock pump would fail. again its just peace of mind.

and if the inline fails it fails open. who cares

...

Well if put the inline pump in because you are having pressure drop issues with the stock pump, then you will still have that problem if the inline pump fails even if it does fail open. At that point the car is going to run lean since the pressure is dropping and the car is tuned without the pressure drop.

[ThirdStrike]

Well if put the inline pump in because you are having pressure drop issues with the stock pump, then you will still have that problem if the inline pump fails even ifit does fail open. At that point the car is going to run lean since the pressure is dropping and the car is tuned without the pressure drop.

LOL i just counted 3 IF's in there. just stop, please. i dont see what youre point is or trying to prove.

i ran the same pump inline on my boosted vr for ~50k miles, sold it to my friend and he ran it for another 20k. ..not sure why wahlbros supposedly fail on people so often..maybe they run them dry
p.s. i didnt say i was having pressure drop issues. i said its peace of mind (for the 23423th time) knowing i will have constant pressure thats 100lph more than stock on the rail at all times, for 140 bux and 1 hour work.

ive pulled my heads on my motor once for a lean cylinder. this makes me feel better. agree with it or not, it makes sense to quite a few people running stage 3 s4's (i.e. clay@cts)

[megafreakindeth]

me and a whole bunch of more experienced car guys all over the car world get you. dont worry

[vtraudt]

thought id share in case any of you guys are thinking about doing this:
so here are some shots of how I installed my wahlbro 255 inline. This was probably the easiest inline pump install I've done. the b5 chassis seems like its ready to take a pump from the factory. cant even really tell its aftermarket.




the holes in the frame worked perfect. wonder why those holes are there

the hardest part was finding a line that made a bend of around 120 degrees to go back into the engine bay. the line i used is a oem fuel line from a 1.8t.^

a etka of the wire position from the central electrical panel that's above your left knee as you sit in the driver seat. pump is powered on when the motor turns over, not on turn key [wire position is circled]

ThirdStrike: Noticed today that the "4k hickup" on my 1.8T AEB coincides with injector time reaching 16.32 msec, and watching my fuel pressure gauge, notice at the same time pressure dropping by 10 psi. So, I suspect fuel pump has reached his limits.

A while ago, put a Deatschwerks (love it) in my Allroad, but what a PITA that was. Took me HOURS 'under fuel' to rig a ghetto adapter for the stock sock ('strainer'), since the one that came with the pump fit NO WAY.

So, thinking either dropping in a Walbro 255 (cheap enough), but afraid of 'home depot O rings' (used for securing the Deatschwerks; worked fine) or foam spacer, electrical splicing (or get pigtails), but mostly the darn sock (strainer).

Intrigued by the inline option you describe (and yes, the Bosch 044 is also an inline pump!!!, and inline pumps are used EVERYWHERE in the performance worlds (just maybe not so much in 'stock Audi circles'), particularly (strictly speaking: requiring) if used with intermediate tank (typically 1 gal or so), I was hoping to duplicate your setup.

But to my disappointment, the pic links are GONE.

Can you relink, or send to [email protected]?

Thanks.

[Monty23]

Wow, the op put up with alot bs in this thread.

[vtraudt]

Wow, the op put up with alot bs in this thread.

Yeah. ALWAYS amazed to see how factual arguments turn into flaming, insult and name calling. Fascinating.