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Best Fuel Tank Placement

General Tech Talk

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BEST placement of O/E fuel tank


Right Behind The Cab
10
56%
As Far Back On The Rails As Possible
4
22%
IT WONT MATTER
4
22%
 
Total votes: 18

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A1
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Best Fuel Tank Placement

Post by A1 »

As some may know Ive been building up a chopped down LWB Vitara

Well time has come to mount the fuel tank which I had removed plus o/e brkts I was intially going to move the fuel tank as most do to up behind the cab but as it stands now yet to have the TRAY/EXO made it is very much nose heavy ......
Now the tray is goin to be as simple yet strong and tied into the exo so I'm not anticipating it to weigh alot ......so with this mind should a maybe keep the tank as far back as possible to add atleast a little bit more ballast to the rear to help with negotiating step down hills .....

Or do people really think that the distance that it will be back wont really change the distribution..........



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Last edited by A1 on Sat Aug 05, 2006 2:10 pm, edited 1 time in total.
[b][i] DAN [/i] [/b]


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Post by Rhett »

I always thought you would try and keep fuel tank as central as possible becouse fuel will move in the tank, changing centre of gravity consantly.

I supose a feul cell with foam will stop it moving too much though.
Its a wheelbase thing
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Post by GUHOON »

Putting you spare wheel and toolbox etc as far back as possible on the tray will also help with weight balance
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Post by DamTriton »

"As Far Back On The Rails As Possible"

You've got a heap of weight already over the front of the vehicle. The big issue whichever way you go would be to keep it as low in the chassis as you can, given the short wheelbase you are working with.
George Carlin, an American Comedian said; "Think of how stupid the average person is, and realise that half of them are stupider than that".
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Post by DamTriton »

Rhett wrote:I always thought you would try and keep fuel tank as central as possible becouse fuel will move in the tank, changing centre of gravity consantly.

I supose a feul cell with foam will stop it moving too much though.
40l petrol = 30kg, and it's only moving a couple of inches in its CoG within the tank, given the dimensions of the tank. In fact the fuller the tank the less the CoG change within the tank at an angle. The more empty the tank is the less the CoG really matters anyway. Not a significant issue...
George Carlin, an American Comedian said; "Think of how stupid the average person is, and realise that half of them are stupider than that".
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Post by christover1 »

My Sierra LWB has never been so good as it is now in most situations.
My tank is 60L and is mounted flat to floor right behing the seats/cab.
It climbs and behaves much better off road and on.
I can feel the extra body roll because its higher than it was, and would mount lower if it was at all possible. But it doesn't fall over any more than it already did :lol:
It comes down to practicalities of the space, tools etc.
But anywhere is better than the stock position.

You may be quite surprised just how much trays and exos and similar stuff can weigh. IMHO the tanks weight won't be as critical as you think???
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Post by ozy1 »

Dan in my GQ ute i mounted mine right behind the cab, as the truck was always popping mono's before, i had the truck weight for engineers and the front end cam in at 1.2T and the rear came in at 0.7T, so if i had it mounted as far back as possible the weight would have been distrubuted more evenly,

but it will come down to personal opinion, i would guess with the small amount of fuel you have it wont matter alot
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Post by Rhett »

30kg will make a bit a a wieght change when it hits the side of the tank
Its a wheelbase thing
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