Cummins isx pulling rpm

Discussion in 'Ask An Owner Operator' started by Massey1100, Feb 7, 2023.

  1. Bean Jr.

    Bean Jr. Road Train Member

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    I have a DDEC2 that's been turned up. I have to drive it in the mountains. I back out of it because it doesn't have coolers. If I kept my foot in, I'd cook it. Fortunately for me, I learned how to drive a 262. Ya got to pay attention while driving!
     
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  3. snowwy

    snowwy Road Train Member

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    Must be tough come summer time.
     
  4. Magoo1968

    Magoo1968 Road Train Member

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    Mar 18, 2021
    St Malo mb
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    Watch pyrometer gauge and go from there .. if it’s doesn’t have one make that your next purchase.. nobody here knows how the delete was done some burn down very quickly unless monitored .
     
    D.Tibbitt, Oxbow and mitmaks Thank this.
  5. Dadetrucking305

    Dadetrucking305 Heavy Load Member

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    Cibolo,Texas
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    ISX’s last the longest at higher rpm ranges 1500 and up.Low rpm and high torque kills them and the extra vibration at low rpm’s drops liners in them.
     
  6. abyliks

    abyliks Road Train Member

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    ludlow MA
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    Been quite a while since I’ve been behind an isx but I’m pretty sure fuel cut off is 2350, usually keep my n14 16-1850 pulling and keep boost low much below 1500 rpm, don’t need to fret the mains
     
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