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fuel pressure problem

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Old Dec 27, 2010 | 01:24 PM
  #16  
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you guys are awsome, I hope I can give back one day
 
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Old Dec 27, 2010 | 07:33 PM
  #17  
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Originally Posted by DieselOrings
...80 psi is more pressure than what you want with stock injectors and a basic rule of thumb is anything over 70 psi will not yield any performance increase and will usually only result in a decrease in fuel mileage...
How does the high pressure cause a decrease in fuel mileage?
 
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Old Dec 27, 2010 | 07:58 PM
  #18  
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Originally Posted by dn29626
How does the high pressure cause a decrease in fuel mileage?
Not sure but it might have something to do with how split shot injectors work. Mileage figures on my most recent tank of fuel seems to validate Bob's statement as well.
 
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Old Dec 27, 2010 | 08:39 PM
  #19  
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I can not give you any insight as to the reason why either. No claim to being an injector guru here .... LOL

This just seems to be what many, many Powerstroke owners have reported over the years.

Next time I talk to Dave at Swamps, maybe I can get some insight from him.
 
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