Dodge/Ram Diesel Tech Discussions on all generations of Cummins Diesel powered Rams plus the new Eco Diesel

Fuel Pressure?

Old Sep 10, 2007 | 12:42 PM
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ga_noplugs's Avatar
ga_noplugs
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Default Fuel Pressure?

So now that I have a FP guage, i'm seeing ~10 at idle and 5-6 at WOT (Wide Open Throttle). Is this about right?

What are ya'll (that dont have FASS's, Walbros, etc) seeing?
 
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Old Sep 10, 2007 | 04:58 PM
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Mayfair's Avatar
Mayfair
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Default RE: Fuel Pressure?

I've got a FASS, so don't go by me, but that sounds a bit low to me. I'm running about 13-14psi at idle and about 12psi at WOT.
 
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Old Sep 10, 2007 | 05:13 PM
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NickBeek
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Default RE: Fuel Pressure?

I believe I have read here before that if you are 5+ at WOT your ok. I've been reading also that guys are having to regulate some of the aftermarket pumps because fp is too high. It seems like around 18 is considered optimal.
 
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