Fuel tank weight distribution

[Cobbo1]

Hi Ausfishers

I'm looking at getting a custom fuel tank made to live under the floor in front of the existing tank, but I'm a little worried about having too much weight at the back, the red area marks the existing tank, and the green is where I want to fit a new tank (yes I'm aware I will have to move the oil tank), the blue I would imagine would be a better place but as you can see I would have to cut the plates out to do so, not really an issue I guess, would the green area make for too much weight in the rear? Current tank is 120L and we're looking at adding another 80 - 100L providing that much will fit. What does everyone think?

http://i1077.photobucket.com/albums/w473/coreymenear/F1401AFA-1100-46FD-B8CA-4F815C750263_zpseacgdysq.jpg (http://s1077.photobucket.com/user/coreymenear/media/F1401AFA-1100-46FD-B8CA-4F815C750263_zpseacgdysq.jpg.html)

From a side perspective, the current tank is in line with the "Q" in my rego numbers, and the green area would be in line with the 6/4

http://i1077.photobucket.com/albums/w473/coreymenear/4AB27A04-2B54-42E1-830E-DBAD05A52A85_zpsdkeytuji.jpg (http://s1077.photobucket.com/user/coreymenear/media/4AB27A04-2B54-42E1-830E-DBAD05A52A85_zpsdkeytuji.jpg.html)

[scottar]

Get some (4) 20 litre buckets, fill em up and go for a run. Position them above the various floor spaces and see how the anticipated weight gain effects the dynamics of the hull at various speeds.

[Cobbo1]

I like your thinking, cheers

[Chris Tucker]

Good advice, remember petrol weighs 750grams per litre, so weight wise 20L of water is the equivalent of 26L of petrol.

[Dignity]

Oh and use buckets with lids 😰

[scottar]

Oh and use buckets with lids 😰
Or take a video.......