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View Full Version : Intank Walbro or 044



quattro16
09-22-2007, 04:29 PM
Just wanted to peoples experience with these fuel pumps. Which one is better? Is it worth it in difference in price and how was the installation?

Don Supreme
09-22-2007, 06:23 PM
I just had one of these installed (044 bosch). The shop had to order some special vw/audi tools... with the tools the job seemed pretty easy.


Some have completed the job by making up there own stuff, but the audi tools were super easy.

Anyway, I just drove home on the pump, only 40 miles so I can't really comment on anything else.

NLHT637
09-22-2007, 08:34 PM
BOSCH 044 is alot more expensive than the Walbro. I got the walbro at first then switch to the 044. Letting you know if you have the money the 044 is hell of a pump. Will keep fuel to your injectors full time.

Don Supreme
09-22-2007, 09:05 PM
Yeah, I am not going to worry about my fuel pump again (in regards to fuel supply)

mike-2ptzero
09-22-2007, 09:15 PM
If you plan on making a good amount of power just skip the walbro. The walbro does not flow as good as the 044 when running high fuel pressure while pushing high boost levels, the walbro is very loud compared to the bosch 044 pump.

prodrive
09-23-2007, 04:59 AM
040 is in tank fuel pump and it flows close to 044 600-700 bhp so IMO there is no need to use 044 if you compare the prices ,040 is half price.

pmoss
09-23-2007, 05:08 AM
For most people on this site though, the walbro would be fine. (ko3's, ko4's, gt28r's). With that being said I wish I went Bosch the first time instead of having to replace the pump twice.

mike-2ptzero
09-23-2007, 09:26 AM
040 is in tank fuel pump and it flows close to 044 600-700 bhp so IMO there is no need to use 044 if you compare the prices ,040 is half price.

Well I think most are looking at the bosch pump kit that 034 motorsport sells since it is a direct drop in.

http://www.034motorsport.com/images/A4_044_FuelPump1.jpg



For most people on this site though, the walbro would be fine. (ko3's, ko4's, gt28r's). With that being said I wish I went Bosch the first time instead of having to replace the pump twice.

Fine but isn't the best since most of those that run those setups are running a base fuel pressure of 4bar-5bar(58-72.5psi), then add in the amount of boost they run the end up running at a fuel pressure that is well over what the walbro was made for. The pump was designed for a NA car and a low boosting setup that doesn't put the fuel pressure over 80psi were its flow drops like a rock. This is exactly why it just makes more sense to skip the walbro.

Just think of all those K04 guys that went with larger injectors and a lower fpr, basicly the same reason to go with a pump that has a much higher flow rate when the fuel pressure is at 80+psi.

aytheory
09-23-2007, 11:07 AM
what if i am running large injectors 630cc and already set it to the lowest setting the adj fpr will let me at 3 bars. Would replacing it with the 44 be too much.

Poopie
09-23-2007, 12:25 PM
it can never be too much. The walbro will work great in your car though at your power levels

mike-2ptzero
09-23-2007, 01:51 PM
it can never be too much. The walbro will work great in your car though at your power levels


Only problem is most people end up looking for more power at some point, so when changing pumps its best to remember that. I went walbro at first but at that time I did not have a choice of going to the Bosch pump.

STASIK A4
11-03-2007, 09:11 PM
If you plan on making a good amount of power just skip the walbro. The walbro does not flow as good as the 044 when running high fuel pressure while pushing high boost levels, the walbro is very loud compared to the bosch 044 pump.

Well im running Walbro intank as a pick up and 044 outside as a feed and i tell you what, i can hear 044 buzzing its head off over walbro and over stereo with only 10% volume. But thats the comprimise you make for power.... Funny seeing people next to you looking were that buzzing is coming from....[:D][:p]

Tifun
11-03-2007, 09:23 PM
I ran an intank 255l on my s13/14 sr swap...worked great.

mike-2ptzero
11-04-2007, 05:45 AM
Well im running Walbro intank as a pick up and 044 outside as a feed and i tell you what, i can hear 044 buzzing its head off over walbro and over stereo with only 10% volume. But thats the comprimise you make for power.... Funny seeing people next to you looking were that buzzing is coming from....[:D][:p]

Well thats because it is outside the tank, put the walbro next to the 044 and you wont hear the 044 anymore[:p]

O2VW1.8T
11-04-2007, 07:05 AM
http://www.034motorsport.com/product_info.php?cPath=24_78&products_id=511

If i get this, does it come with a filter or what.. I have the walbro and its not that good, need to upgrade

mike-2ptzero
11-04-2007, 07:44 AM
http://www.034motorsport.com/product_info.php?cPath=24_78&products_id=511

If i get this, does it come with a filter or what.. I have the walbro and its not that good, need to upgrade

Doesn't look like it. I know that their 044 drop in for the B5 A4/S4 has a screen that is included.

eurostylzmk4
11-04-2007, 08:55 AM
I Must agree with everyone else here. I my self have the Bosch 044 pump, install was a breeze considering i had to put it in on the side of the road from my development[:p] stock one burnt up just as i was begining to leave for the beach . I ended up getting the pump from Scott @ USRT and the modified cradle from 034 motorsport.

xr4tic
11-05-2007, 06:01 PM
I'm running a Walbro 255lph "high pressure" pump.

Why did I choose the Walbro? because it was the only pump available 5 years ago :)

http://forums.audiworld.com/performance/msgs/44541.phtml

Now that a higher flowing pump is available, am I going to change it? Nah...

Take a look at the pump specs:

http://www.autoperformanceengineering.com/html/fpspecs.html

At 80psi, it flows 41 gal/hr @12 Volts. 51 gal/hr @13.5 Volts

41 gal/hr = 155.8 l/hr = 2597 cc/min (worst case scenario)

thats 649cc/min of fuel per cylinder.

So, if you have your base pressure set to 45 psi, don't go over 35psi of boost, and have 630cc injectors, you will max the injectors out before you max the pump.

If you're going to go over 80 psi of fuel pressure, or need larger than 650cc injectors, then the 044 pump is probably the one to get, otherwise, the Walbro pump, at $105, is a helluva deal if you can mount it yourself. Or get the ATP drop-in pump/adapter for $229