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  #1  
Old 17th December 2009, 11:46 AM
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jasongray5 jasongray5 is offline
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Default Couple of fuel tank questions...

Bloke thats ment to be making it has let me down abit, so, was thinking i could do it myself!
Are there any issues with using steel instead of ally?

And Is there a problem with sitting it ontop of the diff cage instead of behind it?

Is there any problem with my tank being wide, deep, but not very tall (570x350x140) it will have a 100x100x100 swirl pot on the bottom. With at least 4 baffles in it to stop the slosh from beeing so shallow?

Cheers Guys, Jas
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Old 17th December 2009, 12:40 PM
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Hi, the book one is steel so no issues there, you can have plastic too as long as its fit for purpose.
Above the diff should be fine too, actually more protected from a rear impact.
all sounds good to me
have you read the IVA manual on fuel tanks if not should give you some reassurance before you make it
Ray
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Old 17th December 2009, 12:57 PM
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Cheers Ray!
I have had a quick scan through the manual and plastic ones must be type approved or something silly like that!
Hadn't thought that it will be better protected, but now you mention it...
Also, its going to give abit more room to fit fuel pump and filters where the tank would normally go, but below the outlet!
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Old 17th December 2009, 01:24 PM
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Most production cars had pressed steel fuel tanks so I wouldn't worry about it. I think 4 baffles is too many though. Just make sure its protected from corrosion with plenty of nice paint etc

I wouldn't make the tank too small, or you'll have an awful range on the car. I've made my tank slightly taller, but sitting in the same location. I imagine if you fit it on top of the diff cage, any kind of servicing is going to be a nightmare, unless you wanna drain and remove the tank to adjust the handbrake cable
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Old 18th December 2009, 11:05 AM
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Jase,

spikehaus on here as fitted his on the diff cage and looks good. Looks to be plenty of room for diff maint as well.
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Old 18th December 2009, 01:32 PM
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Cant see it being a problem mounting it there

The only thing i can think of is that when the tank is full the centre of gravity of the car will be slightly higher

You would probably have to be able to drive like the stig to notice any detrimental affect to the handling though
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Old 18th December 2009, 01:36 PM
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Quote:
Originally Posted by mark View Post

You would probably have to be able to drive like the stig to notice any detrimental affect to the handling though
well Spikehaus has fitted a V6 so should be nice to drive

andy
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Old 19th December 2009, 06:40 PM
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Cheers for the replys guys!

Think its going in the "conventional" place afterall, will make it abit easier to do diff maintainance, and will give me somewhere to put my helmet (oooo-err)

All the best guys, Jason
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Old 21st January 2010, 06:54 PM
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Right, i think i'm going for an ali tank afterall

Sooooo...

What have you guys done for outlet/inlets (8mm) and a fuel cap?

I have heard that several people used caps like this Click!

But as its not a locking one, it has to be teathered? How would you guys go about that?
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Old 21st January 2010, 07:06 PM
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drill a hole through the cap tap it and screw a bolt into it. then put the tether round the bolt. attach the other end of the tether to the car.
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