Say you can't fit a fuel cell in the back of your car because, say, there's a bigass radiator there. Where would you put it?
If we're fine-tuning this hypothetical, say it's a 5-gallon vertical cell and it's a fully-prepped hillclimb car with only a driver's seat.
Where does the rule book say you can put it?
Anywhere as long as it is boxed off from the driver.
Don49
HalfDork
2/23/15 5:00 p.m.
Passenger side as close to the middle of the car as possible. Aluminum box and you're good to go.
I like Don49s location, get it as close to the CoG as possible. Although 5 gallons of gas only weighs 35lbs or so, it can't hurt.
Don49's location is the second best if you can't put it under the rear seat/shelf area. This is the best place for both weight distribution and safety. You're not dedicated to using a hypothetical vertical cell, are you?