Fuel Tank position
Discussion
Has anyone ever had any experience of mounting a fuel tank in the passenger side of a 7? from a competition side, i.e scrutineering !! i have read through the blue book and nothing says you can't, although it does refer to the passenger side in various examples non fuel tank related but essentially making a point of it although not specific to a 7, surely if there was a fire wall between the tunnel and ali toneau cover and no room for a passenger .....it isnt a passenger area?
My concern is at the rear and after a heavy shunt with a car/ tyres/ wall its bursts, now there is a honeycomb panel across the back, and the two rear diagonals from the roll cage do reach the back top part of the chassis but there isnt a lot else protecting it. In the footwell/ side it has the main chassis plus the side of the roll cage to protect it?
Ok you could get a bag tank, etc etc but there heavy and expensive with servicing every 'x' years. So looking for a quicker fix.
My concern is at the rear and after a heavy shunt with a car/ tyres/ wall its bursts, now there is a honeycomb panel across the back, and the two rear diagonals from the roll cage do reach the back top part of the chassis but there isnt a lot else protecting it. In the footwell/ side it has the main chassis plus the side of the roll cage to protect it?
Ok you could get a bag tank, etc etc but there heavy and expensive with servicing every 'x' years. So looking for a quicker fix.
Provided the compartment you create is completely sealed from the cockpit then I see no reason why not. In fact the compartment only needs to be slightly larger than the tank with openings to the underside of the car so spills can escape.
Also none of the hoses should enter the cockpit.
Steve
Also none of the hoses should enter the cockpit.
Steve
Nice one that's a different angle regarding just covering the tank and pipes, also i had thought it a better option for mounting both HP/ LP pumps, swirl pot and loosing a couple feet of pipe in one location, don't Mallock type car and 750 forumla sit next to the tanks?
Anyway excellent idea thanks
Anyway excellent idea thanks
I'm in a similar situation with my Westfield xtr2, passenger space seems perfect for the fuel stuff.
When searching recently i'm sure I saw someone mention the MSA had stopped people doing it in sevens although that was just a comment on a forum.
I think the Sylva r1ot has a passenger footwell tank?? but that is with a passenger aswell!
The blue book also says "The entire fuel tank area 'Licked by the open air stream' must incorporate a crushable structure"
Would the passenger area of a seven count as "licked by the open air stream"?
When searching recently i'm sure I saw someone mention the MSA had stopped people doing it in sevens although that was just a comment on a forum.
I think the Sylva r1ot has a passenger footwell tank?? but that is with a passenger aswell!
The blue book also says "The entire fuel tank area 'Licked by the open air stream' must incorporate a crushable structure"
Would the passenger area of a seven count as "licked by the open air stream"?
Just done it on my Sylva phoenix, not in the UK but no problem with scutineering, purpose built tank then completly sealed in the passenger area, to create a fire wall, My car runs a serious SR20 DET (450BHP) no silencer and exhaust exits behind the front wheel, fuel filler placed where passenger door would be,
Huge problem with heat, as there ws no air flow, put both the lift and feed pumps and the surge tank ere in front of the tank in the foot well,
Car would only run about 30Km fast and then the surge tank emptied, as the lift pump was gettting to hot, and was unable to supply enough fuel.
Relocated the surge tank and both pumps over the diff, and problem solved, but it had completly cooked the pump in side 40 KM, and I had to buy a new one, may not be such a problem if you don't have red hot turbo and exhaust right in front of the foot well, took us a few goes to realise what was wrong, at first we thought it was an eletrical problem cause the miss fire, and of course we found aloose wire that we were happy was the problem then when we concinced ourselve it was heat we tried to feed cooling air in, but could not get enough and in the end had to relocate the pupms.
Huge problem with heat, as there ws no air flow, put both the lift and feed pumps and the surge tank ere in front of the tank in the foot well,
Car would only run about 30Km fast and then the surge tank emptied, as the lift pump was gettting to hot, and was unable to supply enough fuel.
Relocated the surge tank and both pumps over the diff, and problem solved, but it had completly cooked the pump in side 40 KM, and I had to buy a new one, may not be such a problem if you don't have red hot turbo and exhaust right in front of the foot well, took us a few goes to realise what was wrong, at first we thought it was an eletrical problem cause the miss fire, and of course we found aloose wire that we were happy was the problem then when we concinced ourselve it was heat we tried to feed cooling air in, but could not get enough and in the end had to relocate the pupms.
DRCAGE said:
.......The blue book also says "The entire fuel tank area 'Licked by the open air stream' must incorporate a crushable structure"
Would the passenger area of a seven count as "licked by the open air stream"?
If you open up the floor below the tank leaving just a couple of bars holding the tank then yes it is 'licked by the airstream'.Would the passenger area of a seven count as "licked by the open air stream"?
Steve
Some good info there. Licked by the fuel tank, i wonder if a louver can be added to the underside of the compartment facing rearwards, or maybe another smaller one facing forwards for incoming air into the compartment to cool things down before being exited by a larger one to the rear. Might not be too difficult to achieve. The rules cant be that stringent as likes of a radical has its fuel tank in between driver and engine and with a flat floor im sure there isnt anything below it opening it to air.
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