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Has anyone installed a walbro pump on a NA 3400 and had any probs, or are there nothing but gains from the pump pulling less current and giving more available fuel?
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IDK, man, I had one installed in my GA for a while, and never really had any problems, except for the venturi issue - the Walbro pump won't scavenge the bottom of the tank unless you buy the kit through ZZ. But, I think the issue they address, also, of the [W] pump flowing less than stock with the factory wiring is justified. After putting a brand new stock pump assembly back in my GA from the [W] unit, the response felt a lot better across the board.
The only reason I bought a [W] unit was my factory pump was on it's way out, and it was cheaper to buy the [W] pump motor than it was to buy any aftermarket pump assembly (consider ~$150 for [W] as compared to $300+ for aftermarket assemblies). Although, unless you're running boost, there really isn't a need for a high flow fuel pump.
This is all just my opinion, though.N-body enthusiast:
{'87 Grand Am SE - 3.0 90* v6} / {'93 Grand Am LE - 3.3 90* v6}
{'98 Grand Am SE - 2.4 Q4} / {'99 Grand Am GT1 - 3400 60* v6}
Current Project:
{'90 Chevrolet C1500 Sport 350TBI} -
yah i just wanted to know, cuz i just wanted to know if i could have it in there in preparation for the upgrades i want. i think i might look at the rewire kit and see what that does.Comment
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Ya, I was kinda wondering the same thing. I wanted to replace it with the high flow Walbro in preparation for future turbo upgrades, so I wouldn't have to do it later. I would be running N/A for a year or so before I upgraded, but I would like to swap fuel pumps before the car is on the road.1990 Chevrolet Beretta GT *new project*
1990 Pontiac Tempest LE *GONE* ~formally 3400/5-speed equipped~Comment
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The stock pump in the grand am already has sufficient flow to cover almost any amount of NA mods you will throw at it. At most you might want to upgrade the wiring and relay to the stock pump to reduce any voltage loss and make sure is flowing it's maximum. If you were running boost and/or nitrous and larger injectors, then you might want to consider the walbro.'97 Grand Prix GT 3800 (sold)
'00 Grand Am GT 3400 supercharged
13.788 @ 103.73 mph, 320whp 300 ft/lbs
Gotta love boost!Comment
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ive been running a walbro for about 2 months now with no issues...1996 beretta w/a 04' 3400 3.5 top end, 42.5lb hr, 180*thermo, t3t4 .63ar 60 trim, LC1 WB, FMIC, greddy rs BOV,TIAL 38mm wastegate,791xv,fidanza,stage III clutch,TG LSD,ffp udp,walbro 255 lph,strut tower brace,22 rear sway,30 front sway,92 5sp tranny,92 subframes,all solid mounts,kyb shocks and struts,eibachs,battery in trunk,tgp map sensor,DHP Powrtuner,euro front and rear and more to come soon...mods sitting in boxes waiting install....zo4 kit,GTU wing,and more..Comment
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Ya, I wouldn't think there'd be any issues running one while still N/A. Any excess gas would be sent back to the tank. Right?Originally posted by rickykline View Post1990 Chevrolet Beretta GT *new project*
1990 Pontiac Tempest LE *GONE* ~formally 3400/5-speed equipped~Comment
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been running a walboro pump since mid-last year on my NA 3400. How the pump is setup is dependant upon the body and year of your car. Havent had any problems and is certainly better than my old burnt out pump. For an NA car with only a few mods it will be more thhan enough pump with plenty of umph to grow as you add more power.
1995 Monte Carlo LS
3400 SFI 60v6
FFP Underdrive Pulley, S&S Headers, LSD, ODBII Swap, DHPComment
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in mine i run a pump for a 93-95 4.3l mpfi blazer, vin code W. its suppoesed to be 255lph.
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how well did that work for you? mods?Andy
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fastest 1/8: 10.19@ 67.17
fastest 1/4: 16.16@ 82.70
62mm TB, 1.6 roller tip rockers, Ostrich 2.0, UD pulley, TB heater bypass, K&N, 180* stat, No cat, 99Grand AM dual cooling fans. 4T65E swap FDR 3.69, EP LSD, F.A.S.T. transmission controller, TransGo shift kit.
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works fine for me. motor is rather built up n/a 2.8l. i know i dont realy need a bigger fuel pump, but i had to replace it so i went with that one. it dropped right in place of the stocker in my tank.Comment
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Shark I wonder if yours is the same setup as a 80's Beretta V6?Lifting my front wheels, one jack at a time.Comment
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most likley. all it is is a strainer hooked to the pump, and the pump sits on a hanger (supported from the bottom) and the pump outlet slided into an acumulator wich is part of the line. very simple setup. i dont have any pics of it though.Comment
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I just installed one in my 92 Z24 and the fuel bucket assembly in my car has the venturi line off of the main output line and not the pump itself. The walbro pump went in with no mods and works great!Comment
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