Walbro 400LPH intank pump ? Anyone got any info
EvoM Guru
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From: Tri-Cities, WA // Portland, OR
As a side note, I may put one together and send it out to have the actual assembly flowed, my guess is the factory fuel filter and the way it's designed is going to choke that pump WAY down. When I get it together I'll ship mine off for flow testing and report back how it compares to just the pump flowing, I bet it drops 30%.
No, the pumps sell but not nearly as good as the double pumpers. I feel they are just another cost involved that some people will choose to spend BEFORE they finally get the double pumper. That seems to be the pattern anyway.
Usually the pump will entirely fail so major engine damage is not much of a concern. I have seen a few occurrences where they electrically short out inside of the pump itself and that can be a bit messy but these are very seldom. Overall Walbro reliability has been very good and I have only seen 2 actually fail over time on the 50+ I have installed.
Usually the pump will entirely fail so major engine damage is not much of a concern. I have seen a few occurrences where they electrically short out inside of the pump itself and that can be a bit messy but these are very seldom. Overall Walbro reliability has been very good and I have only seen 2 actually fail over time on the 50+ I have installed.
The tank pump failed, but failed intermittently, so I almost destroyed my motor as it kept randomly going lean. One day the back pump cut out all together, but that was after a week of tuning and trying to figure out why I would randomly go lean. Thank God forged internals are forgiving
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Blue91lx - I have never personal seen issues like that you have shown there but I typically always recommend a fuel pressure gauge so you can monitor your fuel pressure.
The Walbro E85 pump should meet your needs.
The Walbro E85 pump should meet your needs.
And I was thinking that, but I was reading somehwer the walbro E85 400 pump doesnt work well with pump gas at all?
The abnormal stuff normally happens to me. Now you can say you've seen a case where a Walbro failed slowly and almost caused a guy his motor.I was tuning, doing pulls, and one pull would be lean, the other rich. I was so confused. I thought it was due to the temperature enrichment tables and the car was just switching between the two. Thus, I made both tables the same, went for a 3nd gear pull and gave me a good ole "bang" when I made full boost, and sure enough, it was completely lean.
It lasted for a day or so more doing the same thing, and then just stopped working all together. I used only the inline pump to get me around before my 400 came in
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E85 compatible Walbro - Pics
Picked up the E85 compatible Walbro 400 from Buschur last Thrusday.
Encountered fuel delivery issues after plugging it in the Evo. Currently troubleshooting with the guys at Buschur Racing.
I'll update the forum once the issue is resolved.
Encountered fuel delivery issues after plugging it in the Evo. Currently troubleshooting with the guys at Buschur Racing.
I'll update the forum once the issue is resolved.
Last edited by khasal; Aug 6, 2012 at 05:54 AM.






