Hair brained scheme

[Y33TREKker]

Any reason a combination of tank sizes and placements couldn't be used? If you're wanting to go full CNG, would you actually be removing the stock fuel tank? The space gained would allow for the mounting of some of the tanks there. Even if they had to be custom made to fit in the space, the cost of the custom build would most likely be recouped in little time with the later fuel cost savings.

If you then wanting to mount additional tanks on the roof, they wouldn't have to be as large or as numerous, although I would personally make absolutely sure that they were mounted as solidly as possible to prevent them from becoming "missiles" in accidents like you referred to earlier.

[housertl]

Any reason a combination of tank sizes and placements couldn't be used? If you're wanting to go full CNG, would you actually be removing the stock fuel tank? The space gained would allow for the mounting of some of the tanks there. Even if they had to be custom made to fit in the space, the cost of the custom build would most likely be recouped in little time with the later fuel cost savings.

If you then wanting to mount additional tanks on the roof, they wouldn't have to be as large or as numerous, although I would personally make absolutely sure that they were mounted as solidly as possible to prevent them from becoming "missiles" in accidents like you referred to earlier.

Apparently, doing a full CNG conversion (removing the gas tank) is illegal, but adding a secondary fuel system is fine. I had thought of swapping the gas tank for a smaller one, to see if a decent sized cylinder could fit into the space created, problem with that is that you lose range on extended trips, as CNG can be problematic to find stations for. If you live in TX, no problems, but other places, it really only makes sense if you have a station in your local area (I happen to pass the place that should be getting set up for it on my daily commute). Baker equipment has a system that they will install on ford and GMC vans that has a 500 mile range and has passed crash tests, but looks like rotten arse.