12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

Fuel line size

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Old 05-13-2012, 12:16 PM
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Default Fuel line size

Hey guys,
Im new here. I am doing a 2nd gen 12v conversion on my 1973 Ford Crew Cab Longbed 4x4. It is almost all done, just need to run a few lines. For the fuel lines my stock feed line is a little less than 3/8". Will this be to small and cause a restriction in power?

Thanks!!

-Jon

Ill fill out my sig and everything tonight when i time
 
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Old 05-13-2012, 03:07 PM
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I think my feed is 3/8" and my return is 5/16".
 
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Old 05-13-2012, 06:25 PM
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Thats what i have read that they should be. Thanks for the info
 
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Old 05-14-2012, 10:19 AM
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Welcome
 
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Old 05-14-2012, 03:36 PM
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Got any pics of your rig?? I love that body style Ford truck
 
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Old 05-14-2012, 07:10 PM
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When u say almost 3/8 is that od or id. U should have at least 3/8 id line to the lift pump
 
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Old 05-14-2012, 11:40 PM
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Inlet. I don't think it would be possible to have a 3/8" OD fuel line, at least for it to handle any amount of pressure.
 
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