Jake52CabOver
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- Feb 25, 2017
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Hey guys, I'd like to get some input regarding the gas tank location on my 52 GMC cab over. It has a mid-engine setup with a corvette transaxle (4L60E) directly bolted to an 8.1l Vortec. The independent rear suspension is from a 2004 Ford Expedition.
I'm using a 40 gallon tank from a 2005 Ford Excursion because I'm feeding a very thirsty 8.1l, the fuel pump assembly can be easily upgraded for higher flow and so that I can brag about having a 40 gallon gas tank!
I'm 90% sure I'll be mounting it UNDER the cab for the following reasons;
I'm using a 40 gallon tank from a 2005 Ford Excursion because I'm feeding a very thirsty 8.1l, the fuel pump assembly can be easily upgraded for higher flow and so that I can brag about having a 40 gallon gas tank!
I'm 90% sure I'll be mounting it UNDER the cab for the following reasons;
- I don't have enough room for a large gas tank behind the rear axle due to bed length
- The safest location for a gas tank is in FRONT of the rear axle and between the framerails (we all remember the pinto) according to the research I've done.
- Mounting under the cab would provide the best weight distribution for 250 lbs of fuel.
- The Excursion tank has a wrap-around 1/8" skidplate that goes about 1/2 way up all sides. It has reinforcing ribs and weighs about 80lbs. The thing is stout.
- the tank would be close to electronics (possible ignition source)
- the tank would be close to the front of the engine (heat source)
- fumes may become trapped under the cab (possible emergency cab ejection source
)
- electronics and electrical components are typically well sealed as is the fuel system. Tank vents will be routed high under the hood.
- I'm planning a sheet metal heat shield between the tank and engine
- modern tanks are designed to be mounted under the cab/cabin of most vehicles. Practically all SUVs have them under the cabin.
