Guys who removed their stock gas tank?

[Mark Ugrich]

Originally Posted by Greg Reimer 7376

Any time you cut up a gas tank, an explosion hazard is created. The best bet would be to fabricate a replacement panel from 18 gauge steel that would replace the OEM tank. Be sure the tank is outside when any cutting or welding is being done in the shop. Fumes can travel quite a ways and carry a flame back to their source and do damage.DON'T cut or weld on the gas tank itself.

replacement tanks usually aren’t real expensive. But a new one and cut away.

[Mike Gray]

Originally Posted by Mark Ugrich

Actually i’ve seen just the opposite. Section the tank and use the lower half. From under the car it looks like it still had the stock tank, then mount the fuel cell inside on top.

I thought about doing that, but I’m not sure it would be acceptable. A call to NHRA tech office would be a good idea.

[Mark Ugrich]

Originally Posted by Mike Gray

I thought about doing that, but I’m not sure it would be acceptable. A call to NHRA tech office would be a good idea.

Probably wouldn’t hurt to check, but I know of at least one stocker mustang built that way.

[Mark Yacavone]

Originally Posted by Kenney Kelley

What i was talking about how i would cut the top off the gas tank was run a nitrogen purge in the tank for about an hour then put an O2 Meter ( Oxygen Analyzer) in the tank to make sure the gas fumes are gone. I've seen it done where you run a hose off an exhaust pipe and purge the tank that way also. Then and only then would i cut the tank I'm sure you would do the same.

Kenney Kelley

We used to cut stock tanks all the time in the 70's for S/S.
Used the relocating Moroso rear spring hangers, and the welded new sides to the narrower stock tank.
First thing was to flush the empty tank with water, several times . Then cut the ends off with a jig saw, leaving as much water in as possible.
No room for fumes = no explosion
The opened tank would still sit outside for a few days, before tig welding the sides on.

In this case though, I'd just buy a piece of sheet metal and tech screw it down.
No need to make a production out of this ;-)

[kansas stocker]

Neighbor of mine used the exhaust method to clear a slightly larger tank.. They burried him four days later. Fire and/or sparks near gas fumes can be deadly.