Aeromotive’s Gen II Stealth Tank Keeps Our LS Motor Runnin’

A few months ago, we introduced Aeromotives new Gen II Stealth Tank with an unboxing article. We explained some of the features and benefits of the tank, and let you know what vehicles the tank would be available for.

Our Firebird has a modern drivetrain and suspension, it only made sense we upgrade the fuel system accordingly.

We have since installed the tank in our project 1968 Firebird, as pictured in the video above. We also took that time to put the new tank through its paces. Some of you will recognize the Firebird, but for those of you who don’t know, it has an LS-based powerplant under the hood.

Now we have no trouble throwing it into a corner.

The late model engine and trans are kept company by a host of modern suspension and performance underpinnings. Suffice to say, the Firebird is making a lot more power than when it first left the factory in ’68. More importantly, it’s putting that power to the ground more efficiently, allowing it to handle much better, and take corners much harder.

As such, we were running into some fuel starvation issues with the stock fuel tank, and Walbro 255 fuel pump. The stock tank contains no internal baffling, or bladder system of any kind, which allows copious amounts of fuel slosh under hard cornering.

To remedy that, the Aeromotive Gen II Stealth Tank was installed in place of the stock tank, using the factory tank straps. Looks and factory installation location are where the similarities end, though. From the minutiae of wiring the pump and fuel-level sending unit, to switching to -AN fittings instead of rubber lines and hose clamps, everything on the Stealth Tank is better.

Aeromotiv’es proprietary Phantom Baffling system ensures the 340lph fuel pump is submerged in fuel as long as there is some in the tank. When we say “some” – we mean it. We drove the car under low-fuel conditions just to test out how well the baffling/bladder system works, and it never skipped a beat.

Aeromotive’s Phantom baffling not only keeps the 340lph pump submerged in fuel, it also keeps it quiet.

Basically, there is a rubber bladder surrounding Aeromotive’s Phantom foam which works to keep the pump continuously submerged, and quiet (hence the Phantom moniker).

The fuel slosh we were experiencing, coupled with a gravity fed fuel pump would have ultimately spelled disaster if we didn’t upgrade to the Gen II Stealth Tank. The fuel pump would inevitably burn out from working so hard and not being cooled by fuel – cavitation plays a major role, for those of you in the know.

An example of the fit and finish we had the pleasure of dealing with during the install.

Luckily, our fuel starvation woes have been quelled by our new tank, and we’re no longer bogged down in the corners. Our LS-powered Firebird is back to soaring.

Those of you with carbureted engines shouldn’t feel left out, though. These tanks will work with numerous applications. You can find out everything you need to know on Aeromotive’s, website. For now, enjoy the video above, and give Aeromotive a call if you think this system is right for your ride.

About the author

Vinny Costa

Fast cars, motorcycles, and loud music are what get Vinny’s blood pumping. Catch him behind the wheel of his ’68 Firebird. Chances are, Black Sabbath will be playing in the background.
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