turning up Cummins 290

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Isxrookie, Jun 1, 2020.

  1. Isxrookie

    Isxrookie Light Load Member

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    Jan 24, 2011
    New Orleans, la
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    How can I turn up this engine?
     
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  3. Deere hunter

    Deere hunter Heavy Load Member

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    Change the fuel button in the back of your pump. But 290 has no aftercooler so be real careful. Once turned up you’ll have to watch gauges close.
     
  4. Isxrookie

    Isxrookie Light Load Member

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    Jan 24, 2011
    New Orleans, la
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    Can I add an after cooler?
     
  5. Deere hunter

    Deere hunter Heavy Load Member

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    Yes easy.
     
    BoxCarKidd Thanks this.
  6. DougA

    DougA Road Train Member

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    Do you have a working pyrometer?
     
    clausland and OLDSKOOLERnWV Thank this.
  7. Isxrookie

    Isxrookie Light Load Member

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    Jan 24, 2011
    New Orleans, la
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    Not sure yet. Can I add one?
     
  8. Deere hunter

    Deere hunter Heavy Load Member

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    Yes and you’ll need it!
     
    clausland Thanks this.
  9. Bean Jr.

    Bean Jr. Road Train Member

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    Aftercooler has little to do with longevity. It is coolant to air cooler for the charged air. Increase the pressure, increase the heat. Lower the heat, increase the density of the charged air. Air-to-air works better than coolant to air, so that's what we have now.

    The problem with trying to squeeze horsepower is that the 290, unlike the higher hp Cummins had a modular crank as opposed to forged. Put too much to it, the crank is liable to snap.
     
    Diesel Dave Thanks this.
  10. BoxCarKidd

    BoxCarKidd Road Train Member

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    Pulse manifold, updated turbo and the cooler will cain a lot.
     
  11. Deere hunter

    Deere hunter Heavy Load Member

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    Also cam followers, been to long for me don’t remember to add gaskets or subtract.
     
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