Has anyone installed a pyro gauge on an pete 579 with an MX13?

Discussion in 'Ask An Owner Operator' started by scoobertdoo, Feb 2, 2021.

  1. Brettj3876

    Brettj3876 Road Train Member

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    Keep it under 1000 on a sustained pull and you'll be fine
     
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  3. Trucking in Tennessee

    Trucking in Tennessee Road Train Member

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    Pre will give you a more accurate EGT reading. I also read to let your exhaust temps post turbo come down to 400 degrees to prevent coke buildup in the turbo.
     
  4. Don379

    Don379 Medium Load Member

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    hey buddy. is this your first trucck? IF so, WE ALLL were scared of things and over thinked things. So if, My opinion is that you are way overthinking it. Just weld a bung to your downpipe after the turbo. Adding 300 degrees is a bit of a stretch imo. Post turbo pyro temp at 1000 degrees isnt gonna hurt anything for a mile steep grade. IF you feel that is too hot and you have an several mile steep grade, Go for another downshift and keep the rpms high. Just find that sweet spot and gear that makes the pyro to your liking.
     
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  5. SmallPackage

    SmallPackage Road Train Member

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    Isspro’s usually come with a weldable bung with the probe in the complete kit. Not sure about other brands.
    They always recommended welding it between 3”-6” post turbo.
    Drill 1/2” hole, weld bung, install probe and gauge, go truckin’
     
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  6. Trucking in Tennessee

    Trucking in Tennessee Road Train Member

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    It's not my problem. I ran a race car with 8 egt probes, so I feel I have some expertise on the subject. Diesel runs about the same temps as a gas motor, so even if it's 1300 pre-turbo it won't hurt things for a short period of time. Keeping RPMs high will raise exhaust temps.
     
  7. pushbroom

    pushbroom Road Train Member

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    Putting an egt probe pre turbo runs the risk of cracking the exhaust manifold or blowing the probe out from the back pressure. The probe can also break off and run though the turbo.
    There is really no good location on a paccar post turbo to mount one either.
    The engine already has multiple EGT sensors and monitors everything so there is nothing you can do to create a high EGT situation. Leave it alone and drive the #### thing.
     
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  8. Don379

    Don379 Medium Load Member

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    Ok well pull the steep grades at 1300 rpms then. Good luck on the quest for egt probes
     
  9. Trucking in Tennessee

    Trucking in Tennessee Road Train Member

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    Again, you are confused. I am not buying or using probes. Try and follow the thread. Maybe if you started from the top.
     
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