Fuel system swirl pots
17 March 2009, 08:32 PM
#1
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Fuel system swirl pots
What pumps do people use for lifting fuel to the swirl pot?
By my reckoning you need one with a greater flow than the walbro 255lt but by how much?????
Any help would be great
TIA
By my reckoning you need one with a greater flow than the walbro 255lt but by how much?????
Any help would be great
TIA
17 March 2009, 09:40 PM
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Just found this beaut.
https://secure.demonweb.co.uk/earls1...5e38cbc71991b9
Need something to help the surge around Cadwell
Managed a 1.49 with a fare bit of surge. Grrrrrrr
https://secure.demonweb.co.uk/earls1...5e38cbc71991b9
Need something to help the surge around Cadwell
Managed a 1.49 with a fare bit of surge. Grrrrrrr
17 March 2009, 09:45 PM
#4
I've got one of these...
This is not the Bosh 044, rather the monster that pumps at 10 bar! Should do the job
Thanks to Harvey for supplying.
Currently getting parts together my my external setup.
This is not the Bosh 044, rather the monster that pumps at 10 bar! Should do the job
Thanks to Harvey for supplying.
Currently getting parts together my my external setup.
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17 March 2009, 10:29 PM
#9
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Why would you need anything other than a walbro or similar to act as a lift pump, for most applications???
I use the standard Spec C in tank pump (virtually the same as a Walbro) to supply a 044 external Bosch and Swirl Pot. This provides AMPLE fuel to 4 x 1150cc Injectors, which are only being tickled for it's current 500+bhp output.
I use the standard Spec C in tank pump (virtually the same as a Walbro) to supply a 044 external Bosch and Swirl Pot. This provides AMPLE fuel to 4 x 1150cc Injectors, which are only being tickled for it's current 500+bhp output.
17 March 2009, 10:36 PM
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Now I knows!
17 March 2009, 10:43 PM
#14
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Wrong way round mate... low pressure is to swirl pot, feed to injector rail is high pressure and needs the pump with the guts!
Mmmm... as regards to the fuel surge, I would of thought that a separate swirl pot and high pressure pump would be much more effecient. I know a few OEM set-ups have the combined pump and pot, but perhaps there lies the answer. I would suspect it is cheaper and certainly not meant for the rigours of track conditions?
Mmmm... as regards to the fuel surge, I would of thought that a separate swirl pot and high pressure pump would be much more effecient. I know a few OEM set-ups have the combined pump and pot, but perhaps there lies the answer. I would suspect it is cheaper and certainly not meant for the rigours of track conditions?
17 March 2009, 10:49 PM
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Wrong way round mate... low pressure is to swirl pot, feed to injector rail is high pressure and needs the pump with the guts!
Mmmm... as regards to the fuel surge, I would of thought that a separate swirl pot and high pressure pump would be much more effecient. I know a few OEM set-ups have the combined pump and pot, but perhaps there lies the answer. I would suspect it is cheaper and certainly not meant for the rigours of track conditions?
Mmmm... as regards to the fuel surge, I would of thought that a separate swirl pot and high pressure pump would be much more effecient. I know a few OEM set-ups have the combined pump and pot, but perhaps there lies the answer. I would suspect it is cheaper and certainly not meant for the rigours of track conditions?
You have totally misunderstood
low pressure high flow to fill the swirl pot, then the walbro fitted in the swirl pot to feed the injectors.
AFAIK there is nothing in the rule book to say you cant fit the injector pump into the swirl pot, it makes sense in terms of packaging to me.
18 March 2009, 08:13 AM
#17
Shaun is talking sense.
Std Walbro in tank to feed the swirl pot, then a proper pump (external to the swirl pot) to feed the rails. I have an 044 that does that job for me.
I regularly run to below the empty light on track now and not a sign of surge.
Std Walbro in tank to feed the swirl pot, then a proper pump (external to the swirl pot) to feed the rails. I have an 044 that does that job for me.
I regularly run to below the empty light on track now and not a sign of surge.
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