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Old 05-18-2019, 10:59 AM
78-79fordman 78-79fordman is offline
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Default dual fuel pump

ok I went dual fuel Bosch pumps setup regulated return from 444fab . here's the pump setup in pics . I'm running stock injectors as of now but will be upgrading to 238/80 in the next couple months when I get the funds saved . starting with fuel since the stock pump started leaking .

so the questions

can I hook up the secondary pump to a pressure switch on the regulated return. if so what pressure should I make the secondary pump kick on . and in pics u can see the one way check valve is installed on the top pump . should it be the primary or secondary pump.
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  #2  
Old 05-18-2019, 11:03 AM
78-79fordman 78-79fordman is offline
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this is my second kit from 444fab also . other kit was a single Bosch setup but a may add a secondary pump to that kit also .

Last edited by 78-79fordman; 05-18-2019 at 11:13 AM.
  #3  
Old 05-18-2019, 11:40 AM
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Magnum PD Magnum PD is offline
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Might be better off just letting both pumps run. Over complicating it
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96 F-350 RC 4x4 Hypermax Rods, PIS 300/200s G head tunes, Garrett GT4294, Beans IDM, ARP head & main, girdle, half filled block, DI cam, Dual IPRs, ceramic coated bowls, anti-friction skirts, Haldex pump over Honey Badger Jr, Diesel site High volume lpop, Billet intake Plenums, Dual SD pumps, Fluidampner, beehive springs, cosmetic head gaskets, Inconel valves, hardend guides, Ported and polished heads by me, home made RR fuel, 5 speed tranny, with SB 3600 DxD. Snow water meth.
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Old 05-18-2019, 11:43 AM
78-79fordman 78-79fordman is offline
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will I have been told to only run one and have the other on a switch which would work but I would like it to come on with out me thinking to turn on a switch
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Old 05-18-2019, 01:36 PM
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Magnum PD Magnum PD is offline
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You could just do one for now with the stock injectors
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96 F-350 RC 4x4 Hypermax Rods, PIS 300/200s G head tunes, Garrett GT4294, Beans IDM, ARP head & main, girdle, half filled block, DI cam, Dual IPRs, ceramic coated bowls, anti-friction skirts, Haldex pump over Honey Badger Jr, Diesel site High volume lpop, Billet intake Plenums, Dual SD pumps, Fluidampner, beehive springs, cosmetic head gaskets, Inconel valves, hardend guides, Ported and polished heads by me, home made RR fuel, 5 speed tranny, with SB 3600 DxD. Snow water meth.
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Old 05-18-2019, 02:02 PM
78-79fordman 78-79fordman is offline
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Quote:
Originally Posted by Magnum PD View Post
You could just do one for now with the stock injectors
that also maybe what happens . but which one I assume the bottom pump as the one check valve would keep it from pumping backward through the top pump right .
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Old 05-18-2019, 07:25 PM
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May already be a check valve
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96 F-350 RC 4x4 Hypermax Rods, PIS 300/200s G head tunes, Garrett GT4294, Beans IDM, ARP head & main, girdle, half filled block, DI cam, Dual IPRs, ceramic coated bowls, anti-friction skirts, Haldex pump over Honey Badger Jr, Diesel site High volume lpop, Billet intake Plenums, Dual SD pumps, Fluidampner, beehive springs, cosmetic head gaskets, Inconel valves, hardend guides, Ported and polished heads by me, home made RR fuel, 5 speed tranny, with SB 3600 DxD. Snow water meth.
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Old 05-18-2019, 07:52 PM
Garbage_Mechanic Garbage_Mechanic is offline
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This is my exact plan for a fuel system as well. I likely do not need a second pump with 160/30’s. My thought is redundant backup. Problem is if the “spare” pump is never used it may not work when finally needed. Something has to excercise it. On landfill gas blowers we just switched to the other one every 30days. Guess I could just switch it every oil change. Thinking strongly of a fuel pressure switch to trigger secondary pump on low psi plus perhaps an excercise circuit like starter operation or glow plug activation causes pump to run. Or the KISS principle just put in a switch to select and switch it now and then....
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  #9  
Old 05-19-2019, 02:53 PM
78-79fordman 78-79fordman is offline
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Ya I was thinking add another pump to my other 444fab that's just one Bosch pump also even thought it wouldn't need but for if it failed
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Old 05-20-2019, 03:30 PM
78-79fordman 78-79fordman is offline
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Anyone got and thoughts on the pressure the switch would need to kick on the pump
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