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5.9 Liter CR Dodge Cummins 03-07 Discussion of 5.9 Liter Dodge Cummins Diesels with Common Rail Injection

optimal fuel pressure??

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Old 01-23-2010, 11:16 PM
dangerous1965's Avatar
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Default optimal fuel pressure??
Anybody know what the optimal fuel pressure should be set at on the airdog? I hear between 15 and 25psi!?? Somebody want to narrow this down!
 
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Old 01-23-2010, 11:36 PM
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i got mine set at 17lbs but thats 99 cummins and an Raptor 150
 
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Old 01-24-2010, 01:07 AM
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15 psi on a third gen should be plenty. But you may want to bump it up a couple - u look like you have some healthy mods. How low can you pull it?
 
Last edited by Dr. Evil; 01-24-2010 at 01:11 AM.
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Old 01-24-2010, 02:16 AM
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I have mine set at 20 psi on my AirDog no issues
 
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Old 01-24-2010, 10:06 AM
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I'm just setting it up now I can pull down to 0 on the stock lift pump! I'm sure I'm starving the system! However my rail pressure seems to be holding up at least for a while!
 
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Old 01-24-2010, 11:11 AM
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Yea, that's not good... That's how I killed two lift pumps before I got the AirDog installed. Start saving your pennies!
 
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