Fuel. Dual Walbro or Aeromotive a1000 external?

[empera]

I am redoing my fuel system but i am having a tough time deciding on what type of pump(s) i'd want to use. Currently i am using 1 walbro pump and haven't had any issues with it, I have a second one sitting in the garage but no everyone likes the walbros. So i'm thinking of running the aeromotive a1000 with the stock fuel tank, tapping the bottom and running -10AN feed to the stock fuel rail and with a -8 return.

So if you have any useful input please help me out with this since this is a very critical step in my near future build. (stay tune for thread in a few months/weeks)

Thanks,
-emp.

 

[sneakypete]

im also in this same position. im probably going to go with dual walboros, as ive heard of some of the "problems" with running an external.
how much power do you estimate your going to be pushing? what size injectors are you running?
-pete

 

[Mk3runner]

this is a question im having too. i was thinking dual walbros but been hearing bad things!

 

[IJ.]

Running dual Tsunami's in tank and getting good results.

They're a bit noisy if run flat out though so mine are PWM controlled and I only run one when not on boost.

Might be difficult to get the pair in through the stock tank hole though.

 

[sneakypete]

this is a question im having too. i was thinking dual walbros but been hearing bad things!

what bad things have you heard?
i just bought the dual pump hanger from wesbeech. wont get around to the install till it warms up a bit.
-pete

 

[Mk3runner]

now IJ, did you have to mod your tank to run duals or do you have a fuel cell?

 

[IJ.]

115L custom tank.

 

[foreverpsycotic]

My vote is a bosch 040 internal. Should fit in the stock tank, and will supply you with enough fuel for a good bit of power.

 

[Mk3runner]

thats right i remember you saying you had that large tank..

sneakypete: just fitment issues. no first hand experience with it tho. wesbeech had some nifty stuff! i know wesbeech builds good stuff.....shit, i made no sense... oops. been drinking mucho coffee and not enought sleep.

 

[IJ.]

My vote is a bosch 040 internal. Should fit in the stock tank, and will supply you with enough fuel for a good bit of power.

Make sure it's a "Made in Germany" one though I had 2 Chech ones fail within 2 weeks of installation.

 

[empera]

i already have 2 walbros just need a hanger or i got a buddy with an extra aeromotive a1000 fuel pump thats he's selling me for a good price...so my dilemma still exist, those are my choices atm...both on stock tank.

 

[sneakypete]

thats right i remember you saying you had that large tank..

sneakypete: just fitment issues. no first hand experience with it tho. wesbeech had some nifty stuff! i know wesbeech builds good stuff.....shit, i made no sense... oops. been drinking mucho coffee and not enought sleep.

lol

but to the OP, dual walboros seem like a good route to me. genuine walboros shouldnt die on you and its more economical than external. when i was researching, the cost of an external (or 2), the controller, lines and fittings was way out of my price range for the amount of fuel i plan on pumping in the future...
if i had the money and my supra wasnt my daily driver, i would go with an external if thats what was required.

 

[upgradedsupra]

im also in this same position. im probably going to go with dual walboros, as ive heard of some of the "problems" with running an external.
how much power do you estimate your going to be pushing? what size injectors are you running?
-pete

If you "heard" something and have no facts, then I suggest saying nothing.

I've run the external for many years and it's fine. I actually have an Aeromotive eliminator pump for sale (still on car) as I'm now running a 2345 Weldon. I run a -10 from tank to pump and pump to rail a -8. -6 is my return.

Duane

 

[funky_monkey58]

I have an external A1000 and a sumped stock tank. -8 feed and -6 return. If you decide to go external A1000 let me know and I can make you a mount for it and get it to you with that nitrous kit.

-Sean

 

[figgie]

.... as ive heard .....
-pete

<-- Looks at the Forum we are in...

Hmm 7M-GTE TECHNICAL Discussion.

"I heard" is called hearsay. No facts. Do not post if there is no technical accuracy to what you are posting about (ie, Sound physics, math, first hand experience but then that is somewhat ancedotal etc).

 

[sneakypete]

If you "heard" something and have no facts, then I suggest saying nothing.

I've run the external for many years and it's fine. I actually have an Aeromotive eliminator pump for sale (still on car) as I'm now running a 2345 Weldon. I run a -10 from tank to pump and pump to rail a -8. -6 is my return.

Duane

sorry to offend you. i should have elaborated. the "problems" i was referring in my opinion, are the noise it produces, the plumbing required (isnt exactly a problem), and of course the cost. for a car that isnt only driven on the track and doesnt need that much fuel, i dont believe that an external is needed. but im no expert
-pete

 

[sneakypete]

<-- Looks at the Forum we are in...

Hmm 7M-GTE TECHNICAL Discussion.

"I heard" is called hearsay. No facts. Do not post if there is no technical accuracy to what you are posting about (ie, Sound physics, math, first hand experience but then that is somewhat ancedotal etc).

i should just shut up.
i am a mechanical engineer. but im not an expert in fluid dynamics nor have i done any calculations on the subject for this application. but im just using my common sense.

 

[upgradedsupra]

sorry to offend you. i should have elaborated. the "problems" i was referring in my opinion, are the noise it produces, the plumbing required (isnt exactly a problem), and of course the cost. for a car that isnt only driven on the track and doesnt need that much fuel, i dont believe that an external is needed. but im no expert
-pete

Noise or price, I wouldn't consider a "problem" Maybe you have a different meaning of the word problem? I would use it in a different context is all.

Either way, running an external hasn't been any problem for me and I've run one for years even before my car was a weekend/summer car. A tad noisy but no big deal. The Weldon I run now, I'm sure will be louder than the previous pump.

 

[empera]

ok hopefully we're back on track here Anyone have experience with the aeromotive a1000? Would it be a good idea to run this on a stock tank? wat about a stock rail? Sorry for so many questions just wanna clear things up.

 

[upgradedsupra]

ok hopefully we're back on track here Anyone have experience with the aeromotive a1000? Would it be a good idea to run this on a stock tank? wat about a stock rail? Sorry for so many questions just wanna clear things up.

I run a sump in the OEM tank but..I also run a stock fuel rail on mine and is fine. Just tap the rear for larger fitting. Nate runs a stock tank that has an A&N fitting on the bottom with his A1000.