Question about the Aeromotive stealth 340

[Blackened300a]

While doing research I read aeromotives FAQ section of the website. http://aeromotiveinc.com/tech-help/frequently-asked-questions/faq-340-stealth-fuel-pumps/

#6 has this quote as the last line.
"Modifications can be made to the OEM “returnless” fuel system, to the various hydraulic components and electrical supply, to incorporate such a 340 Stealth Pump, and it has been done successfully and with amazing results, BUT, it truly requires re-engineering much of the OEM fuel system components and controls, and is not something the average enthusiast will be capable of handling on their own. For this reason you won’t find recommendations for the 340 Stealth pump to be used in returnless fuel systems in Aeromotive’s application guide."

Now on the same website, go to the application guide and look what's listed as the last vehicle http://i32.photobucket.com/albums/d12/blackened300a/null_zpsb4b0e513.png

Now the burning question. A bunch of us have been running this pump with no problems for thousands of miles. What's the danger down the road going by why don't/do list this as a correct pump?

[Blown3.8]

I think cause of the computer modifications required and maybe FPDM mods. And also fuel line size to take advantage of the extra flow.

[RacerX]

It does also draw more current and needs improved wiring. I think it's more of a "If you screw it up, it ain't our fault" warning.

[Vortech347]

It does also draw more current and needs improved wiring. I think it's more of a "If you screw it up, it ain't our fault" warning.

Actually more of a IT WILL screw up unless you do these things. The amperage that pump draws is insane. There are multiple better options out there.

[RocsMerc]

You will be fine!


7.) Q: My car has a “return-less” fuel system and uses a driver module to use “pulse modulation” to vary the speed of the pump, thereby controlling fuel system flow and pressure (common in, but not exclusive to, Ford vehicles including Mustangs 1999 to present). Can the 340 Stealth Pump be pulse modulated without damaging it?
A: Much of the answer to this question can be found in 340 Stealth FAQ #6 with respect to the “returnless” part of this question, but with specific regard to the “pulse modulation” aspect, unlike most aftermarket in-tank style pumps, the Aeromotive 340 Stealth Pump is fully compatible with aggressive speed control strategies. One of the many features that make the 340 Stealth pump unique is the “turbine” style pumping mechanism. This type of pump is much more tolerant of the aggressive type of “Pulse Modulation” method of controlling pump speed, employed by the factory engineers, to create flow and control fuel pressure.

Unlike positive displacement pumping mechanisms, “turbine” rotors are not radically affected by the inertial forces related to the aggressive starting and stopping that is caused by the low frequency pulse modulation needed to vary fuel pressure by up to 30 PSI. Aggressive pulse modulation can “cog” a conventional pumping mechanism to pieces by locking it up in both directions on a continuous basis. The Aeromotive Stealth 340 Pump features the same “turbine” style pumping mechanism used by many OEM’s in these same applications, providing potentially excellent reliability in a speed controlled fuel system which has been properly re-engineered to take advantage of the Stealth 340’s high-flow capabilities.

There's more than one type of returnless fuel system out there. Our cars are pulse width modulated. I was actually recommended this pump because of our returnless system by a tuner Martyo recommended to me. I ended up not using his tuner because his schedule was booked, but I still followed his advice. I've been running it for 2 years now and no problems.

[RocsMerc]

The amperage that pump draws is insane.

This might be true, but I will say that running this pump on the stock wires has never blown a fuse in my car. I remember when I installed it, I basically said to myself, if it blows a fuse, I'll run new wires. The fuse is going to be rated to whatever amperage is considered safe for those wires. It's not drawing enough to blow it.

Just as an aside, I wasn't stupid enough to take a chance like that with my fuel system with boost involved. I know what the risks of running lean are. I installed the fuel pump two weeks before I started working on installing the supercharger. I drove it normally and it ran a little rich during that time, but that was all.