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Why you should no longer run a walbro or supra fuel pump.

GSX_TC

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Apr 7, 2011
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3,722
Location
Houston, Texas
thats stupid because I have a walboro 255 and i know it cant support 736 Hp
 
Last edited:

cheekychimp

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Apr 19, 2004
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7,333
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East Sussex, U.K.
Turbowop in 3 ... 2 ... 1

But seriously as has been stated, there is no way those horsepower ratings are accurate and even if they were, what would it mean? A whinebro is still enough pump for 99.95% of us. Hardly a reason to stop using them.
 

SleepinGVR4

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Feb 12, 2003
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2,483
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Danville, Pennsylvania
I agree with Paul. Plus jayracing.com sells reworked walbros that out flow the 044 and draw less current. He did a whole write up on Talk to Tuners I forget which.
 

GSX_TC

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Apr 7, 2011
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Might pick up that aeromotive 340LPH for the VR4 though. Because thats pretty impressive for an in tank pump
 

belize1334

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Nov 18, 2003
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3,316
Location
Bozeman, MT
Honestly my conclusion reading that is that the Walbro 255HP is the best for anything below 500hp. It has the slowest pressure falloff (good for boosted engines) and is still flowing over 250lph at 70psi (over 30psi of boost for typical configurations). And it draws the least current up to 95psi.
 

Diego

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Dec 9, 2007
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In a van down by the river, Iowa
Mine's rewired..... more juice, more powah!!! /ubbthreads/images/graemlins/hsugh.gif
 

Quoting belize1334:
Honestly my conclusion reading that is that the Walbro 255HP is the best for anything below 500hp. It has the slowest pressure falloff (good for boosted engines) and is still flowing over 250lph at 70psi (over 30psi of boost for typical configurations). And it draws the least current up to 95psi.



+1. Thanks Roger for always being able to see through the BS. (and for saving me the effort of saying what you just said.)
 

Chase

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Nov 23, 2010
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133
Location
Naperville, IL
Im running a 255 in mine as well with no intent to change. That is until the e85 eats it. Just figured it was good knowledge for all. I have nothing against them but for bigger applications its a good read. I ran 255's on my srt I had forever on e85 and around 460whp with no issues on fuel until the ethanol ate it.
 

alansupra94

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Mar 3, 2010
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Location
Wayne,NJ
So that bosch pump runs inline? So you can install that and a walbro? I am very confused now.
 

Chase

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Nov 23, 2010
Messages
133
Location
Naperville, IL
Quoting 4thStroke:
How many miles did the pump last when running ethanol through it?



I had them burn up in one summer. Not long really. That's why I'll be switching as soon as this one goes.
 

IncorpoRatedX

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May 28, 2003
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5,593
Location
Arizona
Quoting GSX_TC:
thats stupid because I have a walboro 255 and i know it cant support 736 Hp




There's a local with a supercharged LT1 camaro making a hair under 800hp with a 255 and a voltage booster. Built by the same local guy that pushed out 1200ish HP from his stroked small block turbo mustang.
 

thecman02

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Nov 3, 2007
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917
Location
Kalamazoo,MI
I was going to call out that statement, but it looks like my job is already done.

On topic, I really want to get that 340 aeromotive pump. Looks like it wouldn't be working to hard compared to my 255hp that is at its limits when running e85.
 

SleepinGVR4

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Feb 12, 2003
Messages
2,483
Location
Danville, Pennsylvania
Quoting alansupra94:
So that bosch pump runs inline? So you can install that and a walbro? I am very confused now.



Yeah you can run the bosch pump inline with another pump or run it by itself. If you run it by itself you have to modify your fuel pump sending unit some.
 

alansupra94

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Mar 3, 2010
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Wayne,NJ
Sweet that sounds great. Maybe I can even do this in my supra.....but that might just have too many pumps....too many spots for failure.
 

gtluke

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Sep 16, 2001
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4,210
Location
dirty jersey
Jesus, I'm running a pair of 044's in my mustang. I should probably take one out!
 

jnava

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Joined
Apr 18, 2008
Messages
2,073
Location
Arlington, Tx
Do ya think the article is a bit biased? What I mean is they apparently had an independent testing done but the items are for sell. I dunno, I just feel that a walbro is capable for what range of power I want to reach.
 

Ethanol alone doesnt kill a walbro. My talon has been on E since 2005-2006 on a pump I put in the car back in 2002. It still runs like a champ.

Also, many many many evo and DSM guys have the similar results.
 

Overkill

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Joined
Dec 10, 2006
Messages
48
Location
Berthoud, CO
I will be using a Bosch 044 in my car
 
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