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Aeromotive 340 Stealth Fuel Pump

Old 01-15-12, 08:42 PM
  #26  
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The rewiring of the pump I looked at a few years back. If I am not mistaken that was moving the current circuit to its own relay. How large is the wire for the fuel pump stock?
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Old 01-15-12, 09:14 PM
  #27  
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The stock wiring is large enough until it gets to the wire connector on top of the fuel tank, the problem is there is a large voltage drop by the time the power gets there, and then the wiring down to the pump is hair thin which is not the best either. so the first thing you can do is hook up a relay to send battery voltage through a new shorter wire directly to the wiring above the fuel tank. please search for the good thread about all this
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Old 01-15-12, 09:23 PM
  #28  
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When you buy the pump it comes with rewire instructions, follow the diagram. Use the stock wiring to trigger the relay.
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Old 01-16-12, 02:13 AM
  #29  
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Interesting thread. I am currently considering running 2 of these pumps intank on a CJ-Motorsports assembly over the Boscch 044. I like both options but i would prefer to use a one pump setup.
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Old 01-16-12, 11:21 AM
  #30  
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Ok I found the thread on the simple rewire for the fuel pump. I will use the idea of puling the stock fuel pump fuse and removing the blue wire from the fuel pump relay. I will then place the blue wire to the empty fuse slot under the hood.

I will also replace the stock wires going to the pump in the tank.
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Old 01-16-12, 12:04 PM
  #31  
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Old 01-26-12, 01:58 AM
  #32  
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Originally Posted by R-X-R View Post
for a 350WHP goal is it really necessary?
Just run a Supra pump for 350 whp it's plug and play.
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Old 01-31-12, 10:46 PM
  #33  
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I recently was in Daytona for the 24 hour Rolex race and got the chance to get up close and personal with G's 3rd Gen's 340 lph fuel pump.

Word to the wise---the short length of fuel hose provided by Aeromotive is not rated for intank use and should be tossed in the trash. Upon pulling Garrett's fuel pump the hose was very soft and mushy after about four days use. It was separating around the circumference on each end and because it had degraded so much the worm gear clamps were no longer holding tension.

Last edited by GoodfellaFD3S; 02-08-12 at 09:57 PM.
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Old 01-31-12, 11:14 PM
  #34  
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^^^

Thank you for the info!!!

What would you recommend using?
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Old 02-01-12, 12:33 AM
  #35  
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I installed my Aero 340 pump with the hose, worm gear clamps and wires they provided, soon after I replaced the hose with a Gates submersible hose and used some stock spring hose clamps I had that were the right size, I did this when doing a fuel pump rewire and realized the hose was leaking where the clamps were and fuel pressure was bleeding off quicker than it should have after turning off the car.

The pump works great, I'm just surprised they give you a crappy hose and worm gear clamps, not a good way to hook it up. Also it came with fairly thin wires, that didn't really make sense to me, I rewired it with 10 gauge gas resistant wire straight to the pump.
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Old 02-01-12, 03:47 AM
  #36  
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Yeah I had to spend 20-30 bucks for some submersible fuel hose. Regular fuel hose won't work in tank. It'll just swell up and deteriorate
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Old 02-01-12, 09:35 AM
  #37  
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It suprises me that a company that is selling an intank pump will supply it with non submersable hose. pretty sad.



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Old 02-01-12, 03:00 PM
  #38  
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I've heard that the pumps have a tendancy to over-heat with low fuel levels in 400+ whp cars. Never heard any cons about bosch 044's...
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Old 02-01-12, 09:31 PM
  #39  
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I am having doubts about this pump. As Goodfellas stated it came with junk hose and junk wiring. The pump is rewired with 10 gauge. My very last pull and on the way home the car was wanting to go lean @ Wot in the higher rpms. Testing the car ther next evening it seemed to be fine indicating the pump might have been overheated and not flowing after multiple pulls. I am going to do some further tuning and anymore issues this thing is going back to aeromtive. G
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Old 02-01-12, 09:44 PM
  #40  
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You are no where near maxing out this pump, you need to datalog fuel pressure (along with everything else) to see if it is in fact the pump.

I've had nothing but good performance from the pump (528 hp, 24 psi boost, always datalogging every pull), and run the tank a little low sometimes. And with any high performance pump you should have at least 1/4 tank of gas which is enough to keep the pump submerged to keep it cool.
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Old 02-02-12, 09:41 AM
  #41  
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Thank you for the Tom.

I have trolled a few other sites about this pump and it looks like this pump is pretty good.
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Old 02-02-12, 02:14 PM
  #42  
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Originally Posted by tom94RX-7 View Post
You are no where near maxing out this pump, you need to datalog fuel pressure (along with everything else) to see if it is in fact the pump.

I've had nothing but good performance from the pump (528 hp, 24 psi boost, always datalogging every pull), and run the tank a little low sometimes. And with any high performance pump you should have at least 1/4 tank of gas which is enough to keep the pump submerged to keep it cool.
We rewired a few things and cleaned the grounds well for the relay. The relay might have been the problem with the overheating. I will swap in my old rp pump and run it low boost to see if any more problems arise. Time will tell

Last edited by G's 3rd Gen; 02-02-12 at 02:18 PM. Reason: i love milk
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Old 02-07-12, 07:08 PM
  #43  
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My Denso crapped out on me, so was going to simply replace it with another Denso. But then I went surfing to find latest and greatest intel of one pump vs. another. Of everything I surfed up, the below link takes you to a comparison of the Aeromotive, Denso, Bosch, and Walbro pumps that presented the simple and best summing it all up.

What sold me on the aeromotive is the lower Amp draw vs. the Denso and it flows the best at the 40-50 psi range. The higher flow rate is perhaps overkill in my 306hp set up, but I'm a big believer in over engineering. With a little more surfing, I was able to find it for $151.25 including shipping. Part #11141 is what's suggested for either an FC or FD.

http://realstreetperformance.com/sto...on-test-5.html
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Old 02-07-12, 07:14 PM
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^^^ Nice find
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Old 02-07-12, 07:41 PM
  #45  
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I had looked at the same thing with amp draw for the pump. I liked what the flow was stated to be as well.

I just have not had the time or money to finish the car so I thought I would ask what people thought that had used the pump seeing I bought mine about 2 years ago. No one really had used it.
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Old 02-08-12, 12:14 AM
  #46  
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Originally Posted by GoodfellaFD3S View Post
I recently was in Daytona for the 24 hour Rolex race and got the chance to get close and personal with G's 3rd Gen's 340 lph fuel pump.

Word to the wise---the short length of fuel hose provided by Aeromotive is not rated for intank use and should be tossed in the trash. Upon pulling Garrett's fuel pump the hose was very soft and mushy after about four days use. It was separating around the circumference on each end and because it had degraded so much the worm gear clamps were no longer holding tension.
I guess I'll be pulling the pump [email protected]%&****!

On the dyno we found with 3 gallons or less fuel the A/F started leaning out so we added more fuel and the problem was solved. Don't beat on the car with less than 4 gallons of fuel.
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Old 02-08-12, 08:37 PM
  #47  
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Originally Posted by Mr rx-7 tt View Post
I guess I'll be pulling the pump [email protected]%&****!

On the dyno we found with 3 gallons or less fuel the A/F started leaning out so we added more fuel and the problem was solved. Don't beat on the car with less than 4 gallons of fuel.
Interesting! Some positive updates to share. I have tested the car at low and high boost my afrs are rock solid again. Make sure to upgrade the in tank hose.
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Old 02-08-12, 09:02 PM
  #48  
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Glad to hear. I have one on the way.
Going to replace my Walbro with the Stealth.
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Old 02-08-12, 09:40 PM
  #49  
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I contacted Aeromotive with my concerns about the in tank hose and recieved this reply:


Chris,

The hose provided is intended for submersion and is of the same construction used by various OEMs over the years. We have many thousands of hours of in-house testing of these pumps, using the drop parts kit we provide, in fuels of many types and brands, and have had zero failures of the hose. Further, so far knock wood, and there are over 10,000 340 Stealth pumps in the field with no reported failures of the hose provided.

That said, fuel formulations for pump gas vary ever more widely across the country, from season to season, from city to city, and from one fuel refiner to the next. It has been our experience that certain brand fuels have been found to be particularly chemically active against any elastomer material. We attempt to account for this in our testing, but If there is a case where the supplied hose is not holding up well, it has not been directly reported to us. If someone has such an experience we need to be appraised of this directly, and wed like to see the hose and know which fuel brand/type created the problem, in order to do further due diligence.

Hope that helps, let us know if you need further assistance and thanks for choosing Aeromotive!


Brett Clow
Aeromotive, Inc.
I will pull my pump this weekend and let you all know the results. I have had my pump in the car for 6 or seven weeks.
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Old 02-08-12, 10:02 PM
  #50  
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Someone needs to tell Brett Clow that he should provide SUBMERSIBLE fuel hose for his submersible fuel pumps.

Pretty basic. Kinda like Chris or I building you an engine with coolant o-rings that degrade when exposed to coolant
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