What is the normal max boost on a 550 HP, C-15, 6NZ engine?

Discussion in 'Peterbilt Forum' started by Mr. Cob, Oct 30, 2018.

  1. Mr. Cob

    Mr. Cob Light Load Member

    Howdy Loaderlue,

    Thanks for your reply it’s nice knowing my truck is performing as it should. I don’t need any more power but being a normal guy like most I would not turn down more if it didn’t cost a lot or hurt reliability.

    Many years ago I drove to put bread on the table now I drive for fun BIG difference, hope there comes a time when you folks can do the same.

    Dave
     
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  3. 6NZoom

    6NZoom Bobtail Member

    39
    13
    Feb 4, 2019
    British Columbia
    0
    I have an '01 Pete 379 with a 6NZ 475, no custom flash files. Turbo and exhaust manifold were upgraded to a BullyDog set up. Dyno says around 535 WHP. Max boost when I'm pulling a hill is 40 psi at 700 to 800 degrees.
     
  4. Mr. Cob

    Mr. Cob Light Load Member

    Howdy 6NZoom,

    Sounds like you have a runner. :)

    Dave
     
  5. 6NZoom

    6NZoom Bobtail Member

    39
    13
    Feb 4, 2019
    British Columbia
    0
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