05-13-2008
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#1
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Banned
Join Date: Mar 2006
Location: Minnesota
Drives: down the middle of the fairway bitches!
Posts: 1,306
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Re: Dual Walbro's in a 1G AWD
Damnit kevin, you need to fix that quote in your signature...
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05-20-2008
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#2
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Smells Like Fish
Join Date: Nov 2004
Location: Maple Grove
Drives: 96GSX
Posts: 215
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Re: Dual Walbro's in a 1G AWD
Is there an easy way of identifying a 190 vs a 255? I don't know which one i have. I can only assume running a 190 with a 255 is not on the safe side, right?
__________________
out-running the velocichoppa! in my dsm.
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05-21-2008
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#3
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Built it from scratch!
Join Date: Mar 2006
Location: St. Paul
Drives: Currently Mitsu-less
Posts: 851
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Re: Dual Walbro's in a 1G AWD
WHY HAVEN'T I DONE THIS MOD YET!!!
i have a spare 255 sitting in my garage and my fuel pump is already rewired
I will be posting pictures later of mine later and how this will turn out
good write up and pictures are worth a thousand words!
__________________
"A turbo, exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster."
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05-20-2008
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#4
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Join Date: Feb 2006
Location: Rogers, MN
Drives: Cars
Posts: 27
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Re: Dual Walbro's in a 1G AWD
By the part# on it. The 3 most commonly found families are the 190lph, 255lph, and the 255lph HP. You almost always want the 255lph HP on a DSM that is going to run decent amounts of boost. Each family will usually have 3-4 different variants of the pump. Like the GSS341, GSS342, GSS340 and GSL392 are all different versions of the Walbro 255lph HP, with different setups for the inlet/outlet for different cars. The is a 190lph HP also, but I have never seen one. There are also China/eBay knockoffs that are hard to tell from real ones.
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05-20-2008
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#5
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Tournaments Won: 3
Join Date: Oct 2003
Location: Maple Grove, MN
Drives: Lancer and Durango
Posts: 7,017
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Re: Dual Walbro's in a 1G AWD
What i would like to know is that how much is too much for those small ass fuel lines. I dont think i would do this mod unless i have upgraded my fuel lines to bigger ones from the fuel pump all the way to the rail. But thats me personally.
And i would definatly agree with the rewire. Its cheap and simple. I run mine directly to the battery. (which is only 3 ft from the fuel pump.)
__________________
Scientific theories are the most reliable, rigorous, and comprehensive form of scientific knowledge. This is significantly different from the common usage of the word "theory", which implies that something is a conjecture, hypothesis, or guess.
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05-21-2008
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#6
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I hate everyone
Join Date: Jul 2006
Location: Blaine
Posts: 938
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Re: Dual Walbro's in a 1G AWD
The way I see it, why push the stock wiring and hope it works (especially w/ something so important as fuel pressure), when a re-wire really isn't that difficult anyways and then you'll KNOW that you'll be alright. JUst my .02
__________________
Welcome to the internet, where men are men, women are also men, and underage teens are police...
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05-30-2008
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#7
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Join Date: Sep 2007
Location: Savage,MN Dillon,CO
Drives: 91 eagle talon GST
Posts: 524
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Re: Dual Walbro's in a 1G AWD
I read somewhere you don't even need dual fuel pumps, it's actually better to up the voltage to 17volts to the single pump with some type of amplifier. apparently even a stocker pump will get better flow then dual pumps when you do this, am I talking out of my ass or is this true?
Last edited by bertrenolds5; 05-30-2008 at 12:17 PM..
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05-30-2008
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#8
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I hate everyone
Join Date: Jul 2006
Location: Blaine
Posts: 938
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Re: Dual Walbro's in a 1G AWD
I'm gonna go w/ the ass talking option
__________________
Welcome to the internet, where men are men, women are also men, and underage teens are police...
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05-30-2008
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#9
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flips McGee
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Re: Dual Walbro's in a 1G AWD
+1, ass talking. It's been shown several times actually that those boost-a-pump devices help, but are immediately out-flown by twin pumps.
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05-30-2008
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#10
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Join Date: Sep 2007
Location: Savage,MN Dillon,CO
Drives: 91 eagle talon GST
Posts: 524
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Re: Dual Walbro's in a 1G AWD
Ah-ha, good to know the facts.
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05-30-2008
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#11
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Pewp Champion
Join Date: Nov 2003
Location: Blaine
Drives: Teh Bean
Posts: 12,309
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Re: Dual Walbro's in a 1G AWD
I will be picking up a relay and doing a rewire if I get the car back this weekend. I'll make sure to take pics and add it all to the 1st post.
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