12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

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Old May 1, 2009 | 12:58 AM
  #11  
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oh ok ya i will but i think im gunna keep it high until saturday cuz that is wen i dyno, so i want to have more boost haha maybe i'll get higher numbers.
 
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Old May 1, 2009 | 12:59 AM
  #12  
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not necesarily evry truck i know round hear that has been on the rollers, the optimal is about 30psi anything over is superheating the air and throwing your performance out the window
 
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Old May 1, 2009 | 01:03 AM
  #13  
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wait so you think that boost over 30lbs will actually slow me down
 
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Old May 1, 2009 | 01:17 AM
  #14  
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much over 30psi the stock exhaust housing is choking the engine BADLY. The drive pressures and EGTs are going through the roof, not good for the engine or the turbo. Your just asking for a big $$$ repair bill!
 
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Old May 1, 2009 | 08:58 AM
  #15  
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so you think it will have more power at 30psi
 
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Old May 1, 2009 | 09:36 AM
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On a HX35 your max effecient boost is about 35% anything above that, its just more hot air. Also since your dumping alot more fuel I'm thinking the egr is helping your bog situation since its just dumping alot of soot/incompletely burnt fuel back into the motor. Like you said you need to get rid of that crap.
 
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Old May 1, 2009 | 11:30 AM
  #17  
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well i got it tuned so im not blowing much black smoke.
 
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Old May 1, 2009 | 02:09 PM
  #18  
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did you end up fittleing with the boost elbow yet
 
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Old May 1, 2009 | 03:41 PM
  #19  
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no i'm gonna later tonight
 
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Old Jun 28, 2009 | 10:11 AM
  #20  
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no you will have more with more boost
 
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