franky
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| posted on 3/4/10 at 06:18 PM |
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Swirl pot basics...
My fuel tank isn't baffled but due to using the donor pump its cross linked to both side's of the tank however I'm aware it'd
be better to use a fuel swirl pot.
What I'd like to know is how many outlets do I need on one and what do they connect to/from?
Am I right in thinking that effectively it works as a mini tank storing a ltr or so of juice?
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rayward
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| posted on 3/4/10 at 06:21 PM |
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you would normally have a low pressure pump from your main tank to the swirl pot, then an outlet from the swirl pot to your high pressure pump and
fuel rail/injectors, then return to the swirl pot via a pressure regulator
hth
Ray
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doddy
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| posted on 3/4/10 at 06:32 PM |
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heres the data that came with mine
On the bottom of the pot, you have two lines - One coming from the LP (low pressure) pump and the other going to the HP (high pressure) pump. The one
coming from the LP pump causes a swirling action. (Hence the name of the swirl pot) At the top end there's another two pipes. The easy one is
the Fuel Tank Return line to the fuel tank in the centre of the pot. The reason for this is because the fuel is doing it's 'swirl'
thing, and so any air that gets into the pot will be pushed towards the centre of the top of the pot. Since that's where the return line is, the
air will disappear *very* quickly. The return line from the fuel rail is like the LP pump's line, but on the opposite side normally. The reasons
for this is because the fuel is coming out of the fuel rail at a great rate, so it helps the swirl action a fair bit.Now, the reason that this system
works is because it keeps the hot fuel up the top of the pot and the cool fuel from the tank at the bottom. Air won't last long in the pot
either.
[Edited on 3/4/10 by doddy]
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boggle
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| posted on 3/4/10 at 06:50 PM |
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exactly that...the primary function of a swirl pot is to de-airate a liquid....they are good on cooling systems too.....
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franky
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| posted on 3/4/10 at 09:32 PM |
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so the low pressure pump is the one I took out of the donor fuel tank and now sits in my kit's tank, the high pressure is built into the fuel
rail? When I took the donor motor out I cut the feed/return from the car and was left with 2 metal fuel pipes connected to the engine. One of these
then goes to the high pressure pump then?
Also I gather it would be worth fitting a small one or two ltr jobbie?
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