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24 Valve 2nd Gen Dodge Cummins 98.5-02 Discussion of 24 Valve 5.9 Liter Dodge Cummins Diesels with VP44 Injection Pumps
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what does fuel pressure need to be on vp44?

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Old Oct 16, 2009 | 10:23 PM
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98dodgecummins's Avatar
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Default what does fuel pressure need to be on vp44?
i was wondering what fuel pressure i need to have for my 98 24 valve cummins.
 
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Old Oct 16, 2009 | 10:24 PM
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12 to 18 PSI
 
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Old Oct 16, 2009 | 10:24 PM
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oh it varys but i like mine around 14-15 psi. zero is bad mid teens is golden
 
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Old Oct 16, 2009 | 10:29 PM
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Minimum in my book is 10! Factory says 5 IIRC.
 
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Old Oct 16, 2009 | 10:49 PM
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I agree at least 10 and keep it under 25
 
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Old Oct 16, 2009 | 10:55 PM
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Why under 25? Can damage occur to the Vp if it is higher that 25?
 
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Old Oct 16, 2009 | 10:57 PM
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Good thread, good info.... just one question what is IIRC, i hear it alot.
 
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Old Oct 16, 2009 | 10:58 PM
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so 10 is as low as you want to go. does it hurt anything if you go to 8 or 9 psi.
 
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Old Oct 16, 2009 | 11:03 PM
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It shows a start of what is to come $$$$... Keep it above 10 at WOT and you will be golden.
 
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Old Oct 17, 2009 | 12:44 AM
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Originally Posted by RAWilliams
Why under 25? Can damage occur to the Vp if it is higher that 25?
I forget the exact number but was told 2 years ago or so that too much pressure is bad too.
 
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