ricky tango Posted September 1, 2010 Share Posted September 1, 2010 hi guys bit of a question on fuel tanks , currently have a rrc bobtail 3.9 petrol with underslung ali tank looking to fit a rear winch in the space where the tank is fitted plus i need a larger tank as mine is only 32 liters the tank I'm looking at is 900mm wide x 500 mm deep x 230mm tall it will be made professionally of ali with internal baffles and will be mounted in the back of the truck to the boot floor I'm not building this to be a competing truck but i would like the chance to give it a go in the future and so want to get the tank fitted and shielded right to allow me to do so if i feel in the mood to compete lightly in the future what ive been told is the tank needs to be fully enclosed from the cab / driver , so is this just a case of making a box for this tank to be fitted inside with all feeds returns exiting through the floor of the vehicle ? can this box be a bolt together item so as to allow access to the tank when needed? does the filler pipe have to be enclosed also as this would be running from the rear quarter in to the the vehicle and then into the top of the tank? Quote Link to comment Share on other sites More sharing options...
nik 1 Posted September 2, 2010 Share Posted September 2, 2010 hi hope this helps nik This is from the MSA blue book Fuel Systems 5.13.1. Have any fuel lines passing through the driver/passenger compartment protected and, if nonmetallic, to be internally or externally metal braided hydraulic pressure hose or fuel lines complying with FIA specifications. 5.13.2. They may only be joined by screwed sealing joints or vehicle manufacturers approved joint. 5.13.3. If fitted with fuel fillers in a closed boot, or under closure, have collector/spill trays incorporated to drain outside the vehicle. 5.13.4. Use Pump Fuel (see definition Nomenclature and Definitions) except, subject to prior written authority having been given by the MSA, where permitted otherwise under event SRs, and Championship Regulations. 5.13.5. If using LPG, the entire system must conform with Construction and Use regulations and LPG Industry Technical Association Code of Practice No. 11. 5.13.6. If using non-pump fuel have a 3 inch diameter ‘Day-Glo’ orange disc affixed immediately adjacent to the Competition Numbers on both sides. (so is this just a case of making a box for this tank to be fitted inside with all feeds returns exiting through the floor of the vehicle ? can this box be a bolt together item so as to allow access to the tank when needed?) yes it can as this is now your boot Tank Fillers, Vents and Caps 6. Tank fillers and caps must not protrude beyond the bodywork or be situated within the driver/passenger compartment. The caps must have an efficient locking action to reduce the risk of opening during an accident and to ensure closing after refuelling (14.1.2). Air vents must be at least 25cm to the rear of the cockpit and must be designed to prevent the escape of fuel should the vehicle be inverted. It is recommended that a non return valve is incorporated in the vent system. The entire fuel tank area ‘Licked by the open air stream’ must incorporate a crushable structure as follows: the crushable structure bit is for single seater race cars 14.1.2. Fuel (a) Fuel Tanks and Pipes – every effort should be made to isolate fuel tanks and pipes from the driver/passenger compartment. The risk of fuel spillage from accident damage can be reduced by use of bag type tanks or by coating metal tanks with GRP. Tanks should be located so that they are given maximum protection by the structure of the vehicle. Vents should be designed to avoid spillage if the vehicle becomes inverted. (b) Fuel Fillers – these should be designed and located to reduce risk of damage. Filler caps should not be liable to open in the case of an accident. Simple screw caps are effective. The positive locking of the fuel filler caps is recommended. The filler pipe to the tank should be of minimum possible length and not protrude beyond the bodywork (6). Quote Link to comment Share on other sites More sharing options...
bishbosh Posted September 6, 2010 Share Posted September 6, 2010 If you want a ready made tank I have a 17 gallon one for £50...... Quote Link to comment Share on other sites More sharing options...
bishbosh Posted September 7, 2010 Share Posted September 7, 2010 Err, sorry, now sold! Quote Link to comment Share on other sites More sharing options...
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