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5.9L 12V Performance Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps Related to Performance and Longevity

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  #1  
Old 02-07-2008, 09:32 PM
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what would be the best set of delivery valves for my 94 12v with the power i have
 
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  #2  
Old 02-07-2008, 10:01 PM
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Probably 181s. Your makeing 50psi with that much fuel?
 
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  #3  
Old 02-07-2008, 10:06 PM
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ya she is set at 50 just to be safe from blowing the head
 
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Old 02-07-2008, 10:56 PM
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your still playing on borrowed time at 50
 
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  #5  
Old 02-08-2008, 12:05 AM
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the stock head is rated at 55PSI so im not woried
 
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Old 02-08-2008, 02:41 PM
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not so much the head its the headgasket
 
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  #7  
Old 02-08-2008, 05:12 PM
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thats also rated for 55PSI
 
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Old 02-08-2008, 06:18 PM
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Where did you get that info from? I only ask because my head gasket blew at 40psi.
 
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  #9  
Old 02-08-2008, 08:39 PM
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me and my buddie are in a 2nd year diesel mechanic program and know from experience and i red it in one of the diesel power mags a few months ago
 
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Old 02-09-2008, 07:55 PM
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Its usually not so much the hg blowing out as much as it is the head lifting becuase the bolts arent strong enough.
 
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