Dual Walbro setup pics out there?

[julio]

Anyone running dual walbro's on your setups? I will be converting to this setup soon along with some stainless fuel line and was wondering what others were doing for bulkhead fittings into the plastic gas tank/pump lid.

[eh?]

I'm running dual pumps but not in parallel. To get around the problem with the plastic cap/fittings, I ran them in series.I have a gss341 intank and a gsl392 in the engine bay. I also ran -6 aluminum hard lines under the car (weekend only car) It's capable of at least 750whp from a couple dynos I've seen.

[Cjmartz2k]

I ran twin pumps in mine. I no kidding just zip tied them together in tank and put a "Y" in the fuel lines to bring them in to a single -6 or whatever stock is. More than enough fuel for my set up. Not the most gangsta in the world, but not many people poke around in my fuel tank with a flash light

[julio]

I ran twin pumps in mine. I no kidding just zip tied them together in tank and put a "Y" in the fuel lines to bring them in to a single -6 or whatever stock is. More than enough fuel for my set up. Not the most gangsta in the world, but not many people poke around in my fuel tank with a flash light

Did you opt to have run full time or powered via hobbs switch?

[Cjmartz2k]

Full boogy all the time. I did have problems with gurgling gas noises after a lot of daily driving on a hot day though. I'd do the fuel controller IMHO or a Hobbs switch like you mentioned.

[robbie2883]

i was always under the impression there's no need for a dual setup unless you're pushing over 550-600 hp?

[Cjmartz2k]

i was always under the impression there's no need for a dual setup unless you're pushing over 550-600 hp?

Yeah, sounds about right. IIRC he's trying to decide between an HX40 and HX52. Both of those would be capable of needing more than what a single Walbro could safely provide.

[robbie2883]

i gotcha....i'm kind of glad this topic came up though as i'm aiming for 500 whp so will prolly have to add a pump. will most likely do the same thing you did chris

[julio]

Yea, I'm running a hx40 billet 7 blader right now, so I don't want to push the fuel system on one 255lph pump. My plan is to basically run the suggested y inside the fuel tank, run them to a -8 line that goes from inside the tank to the rail. I know a -8 all the way down is slightly overkill for this turbo, especially on pump, but I want some room to grow if I ever decide to shoot for a bigger turbo.

I think I'm going to cut off the stock plastic feed connector on the plastic cap and run a -8 fitting through it. I just haven't figured out what is the best way of doing it.

*** After some research, apparently bulkhead fittings with teflon washers are my friend.

[240z4u]

I am in the same boat as you are, and need to do something about fueling for E85. I came to the conclusion that it is easier and cleaner to do a single fuelab pump in-tank. I am pretty sure it will fit, and they are nice pumps. They come with the fuel pump controller built in and are alcohol fuel safe.

just my two pennies.

BTW; I am pretty sure you cannot just put a hobbs switch on the 2nd pump. If you do that, when the first pump is running it will be forcing fuel back out the other one. Not 100% on this but may wanna check.

[julio]

I am in the same boat as you are, and need to do something about fueling for E85. I came to the conclusion that it is easier and cleaner to do a single fuelab pump in-tank. I am pretty sure it will fit, and they are nice pumps. They come with the fuel pump controller built in and are alcohol fuel safe.

just my two pennies.

BTW; I am pretty sure you cannot just put a hobbs switch on the 2nd pump. If you do that, when the first pump is running it will be forcing fuel back out the other one. Not 100% on this but may wanna check.

I just took a look at those fuel lab units, they look pretty nice and more along the lines of what you will need for E85. Dual walbro's wouldn't get you very far, but possibly dual bosch 044's. But by then you're already at the price of that Fuel Lab pump anyways.

Anyhow, running dual walbro's off a hobb's switch is a pretty common setup. I'm not sure of the internal workings of a fuel pump, but I can tell you that fuel doesn't back flow threw the secondary unit while it is offline.

[GTS4-R]

bosch 044's are nice....

have you looked into an aeromotive a1000 external?
you can run -10an to the pump from the tank woth just a hard pickup than run that up and y it into 2 -6an dual feed single return..... good for an easy 1000hp

[240z4u]

Hard pickup tubes are not recommended for the aeromotive or the fuelab pump, it really shortens lifespan when they have to lift fuel, they aren't self priming pumps.

Julio, sounds good. I was just thinking outloud really, since I have been debating the same scenario lately!

Good luck.

[julio]

Julio, sounds good. I was just thinking outloud really, since I have been debating the same scenario lately! Good luck.

Yea, I thought the same way about that setup, but after seeing a few setups in action and trying to push fuel back through a pump myself I figured it was legit.

P.S. for some reason aussies hate walbro's, claiming they are junk and don't last more than a year. lol, I dont know why, but most experiences here in the states has been pretty good. I have had them run for years in multiple cars.

[GTS4-R]

Hard pickup tubes are not recommended for the aeromotive or the fuelab pump, it really shortens lifespan when they have to lift fuel, they aren't self priming pumps.

so whats the method of running an a1000 external? run an oem or walbro in tank to it? doesnt that restrict flow?

[Cjmartz2k]

Lift pump like a walbro or even stock pump running in to a surge tank, then the A1000 is fed from there. Or just plumb the pick up for the A1000 right in to the tank.

[GTS4-R]

how does the pickup for the A1000 your talking about differ from a hard pickup?

[240z4u]

To do it properly, you would need to add an outlet at one of the lowest parts of the tank and keep the pump lower than the outlet from the tank so it doesn't start dry.

[julio]

Yea, I would love to run an aeromotive pump, but I don't want run a surge tank.

[WhatsADSM]

FWIW, there are some rumors out there about A1000s not being very good in street cars. Then tend to die fairly quickly. Not too sure how valid it is as I have only had one friend run one (and he didn't keep it very long anyways).

And yea walbros are s***.

[julio]

FWIW, there are some rumors out there about A1000s not being very good in street cars. Then tend to die fairly quickly. Not too sure how valid it is as I have only had one friend run one (and he didn't keep it very long anyways).

And yea walbros are s***.

Yea, I believe any external pump (which I believe the a1000 is) isn't necessarily designed to be in a street car due to cooling issues with extended usage. That is unless you have it being cooled like an intank pump is.

[Carl H]

just run a bosch 044 pump or two...more than enough fuel for a fraction of the a1000 price.

[GTS4-R]

i wanna see some pics of dual 044 setups, preferably with no surge tank. in tank and external.....

[SullivanRacing06]

a walbro 255 in tank feeding a 4l surge tank with a single 044 with a -8 feed line is good for 825ish whp =best set up

[GTS4-R]

what about the bosch 040 intank pump. or even 2 with a -8 feed

[SullivanRacing06]

same whp range but under cornering if the pump runs dry youll be sucking air

[julio]

a walbro 255 in tank feeding a 4l surge tank with a single 044 with a -8 feed line is good for 825ish whp =best set up

I didn't think an 044 was capable of supplying that much fuel. Is that with a voltage booster?

[S12_hybrid]

The best setup I have seen with dual pumps was in my friend's 330ci drag car. Check it out:

http://forum.e46fanatics.com/showthread ... 40&page=15

keep in mind - for this setup is was intended as a double redundancy, ran in parallel - not using one as a lifter pump etc.. But all the same, very clean install.

-dan