Discussion
G Man said:
yep use bigger pumps and increase the size of fuel lines into the tank, the factory has done this,
Think he means getting the fuel into the tanks.
Answer No.
Just stand there and fend of the inane questions like 'What is it?' and 'Will you have enough fuel to get back out onto the road?'.
Steve
I remember trimming mine for that reason, probably no more than 10mm off one end. But having said that it still takes an age to fill up as the splash back trips the fuel filler nozzle. It must take at least twice as long a my regular car to fill and that does not include running round to the other side and starting all over again.
pb3 said:
I remember trimming mine for that reason, probably no more than 10mm off one end. But having said that it still takes an age to fill up as the splash back trips the fuel filler nozzle. It must take at least twice as long a my regular car to fill and that does not include running round to the other side and starting all over again.
If you point the jet of fuel down the side of the filler neck alongside the rear edge of the door opening the fuel runs cleanly around the first bend in the filler pipe which reduces the blow back.
Steve
steve_d said:
If you point the jet of fuel down the side of the filler neck alongside the rear edge of the door opening the fuel runs cleanly around the first bend in the filler pipe which reduces the blow back.
Steve
That'd just what I do. You still have to go easy with the trigger though.
It's just trial and error really.
The best pumps are those with the hose at the top, like this:
andygtt said:
I fitted a large -12 balance bar between the tanks high so that after putting 10litres into one tanks (so that you can't get surge from one tank to the other) it starts filling the other as well.... means filling both tanks from one side only which is faster.
I was told by "someone in the know" that it was a bad idea to link the tanks (at any height). The reasoning being that each tank and its respective filler is designed to prevent fuel spilling out at certain pressures. The kind of G forces the car can pull there is a risk that the surge can increase this pressure and force fuel out of the fillers (which would be bad). As I'm a simp I didn't disagree and am prepared for extra inconvenience to ensure the fuel stays where it ought to.
I performed a search on "fuel tank connections" and discovered this is a well trodden path. The -6 link at the top being an overflow, I think the contentious issue was the "balancing" connection while filling tanks. I Don't want to repeat it all again except to say that I'll stick to the factory safety warning (was in one of the searches). Thanks.
andygtt said:
There is a link/join at the top of the tanks to prevent any pressure build up.
Doesn't work like that. Imagine tipping the car over at 45 degrees. With separate tanks the filler may only be a couple of inches under the fuel level. With joined tanks the lower filler may be a couple of feet under the fuel level.
Well having run one I can say it never happened, given that the fuel filler is actualy about 1ft above either tank and that its also on the inside of the tanks, and -12 doesn't equalise the tanks that quickly.
Of cause many senarios are possible if you do the maths, for example an Ultima can theroretically outhandle the capability of the accusump, and a 450bhp V8 can use more fuel than a -6 Fuel line can supply etc etc.
I'd always say if in doubt stick with the factory setup its the safe option.
Of cause many senarios are possible if you do the maths, for example an Ultima can theroretically outhandle the capability of the accusump, and a 450bhp V8 can use more fuel than a -6 Fuel line can supply etc etc.
I'd always say if in doubt stick with the factory setup its the safe option.
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