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Paccar MX-13 can't find a Dealer to increase Horsepower and Torque

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Night-Train, Jun 8, 2017.

Page 1 of 7
  1. Jun 8, 2017 #1
    Night-Train

    Night-Train Bobtail Member

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    Jun 8, 2017
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    I just purchased a 2012 Pete 386 with a Paccar Mx13 engine. It's now at 430 HP and Torqued at 1350 . I'm always carrying no less than 78,000 running mostly from down south to the east coast or up north. Averaging 6.2 mpg. Problem is truck does ok on average hills and mountains but when I get on decent incline here I go dropping gears. Going up north on US65 out of Little Rock into Missouri I had to drop down to low side gears. I have been to two Dealers trying to get truck turned up no luck. According to engine specs this engine can be turned up to 510HP and 1850ft torqued. But doesn't look like I can find a Dealer that will or knows how to accomplish this. Can anyone help me on this matter.
     
    Night-Train, Jun 8, 2017
    Night-Train, Jun 8, 2017
    #1
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  3. Jun 8, 2017 #2
    Brandt

    Brandt Road Train Member

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    Pittsburgh Power can probably turn it up. They work on the Paccar engines now.
     
    Brandt, Jun 8, 2017
    Brandt, Jun 8, 2017
    #2
    runningman0661 Thanks this.
  4. Jun 11, 2017 #3
    Macneil

    Macneil Heavy Load Member

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    Sudbury, ON., Canada
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    Watch how high you turn the torque up. Make sure your clutch can handle it
     
    Macneil, Jun 11, 2017
    Macneil, Jun 11, 2017
    #3
    Super-Trucker, Lightning McQueen, Hegemeister and 1 other person Thank this.
  5. Jun 11, 2017 #4
    AModelCat

    AModelCat Road Train Member

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    Canuckistan
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    Good point. Engine might be capable of it but the rest of the driveline might not be good for it. Peterbilt probably won't re-rate it due to liability.
     
    AModelCat, Jun 11, 2017
    AModelCat, Jun 11, 2017
    #4
    Lightning McQueen and KB3MMX Thank this.
  7. Jun 11, 2017 #5
    Strange77

    Strange77 Light Load Member

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    DAF controls the calibrations, it's not simple like uprating a Cummins. You have to request it from DAF so I can't see why they wouldn't know or want to know what was in the unit before releasing calibration. Plus it ain't cheap i've heard its $1,000 just for the calibration. I haven't personally done one nor do I know of anyone who has done one. I just know it is possible.
     
    Strange77, Jun 11, 2017
    Strange77, Jun 11, 2017
    #5
  8. Jun 11, 2017 #6
    Diesel Dave

    Diesel Dave Last Few of the OUTLAWS

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    Hesperia, Ca.
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    The drivetrain shouldn't be any issue unless you have a heavy foot mashing it thru each gear. If you let torque/horsepower built up gradually, an increase/upgrade shouldn't be an issue.
    I'm running modified tune on my CAT and the transmission is a RTO15613, the first set of numbers is the torque rating "15"= 1500 lbs of torque. I had a 2050 torque program in the engine and never had a problem. It's all about how you drive it.
     
    Diesel Dave, Jun 11, 2017
    Diesel Dave, Jun 11, 2017
    #6
    2013Maxx, Itsbrokeagain, magoo68 and 1 other person Thank this.
  9. Jun 13, 2017 #7
    Macneil

    Macneil Heavy Load Member

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    Dec 15, 2010
    Sudbury, ON., Canada
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    I very much agree. However, how many people do you see out there driving like they give a #### about their equipment? Chances are is hes an O/O looking for a little boost but you never know.
     
    Macneil, Jun 13, 2017
    Macneil, Jun 13, 2017
    #7
  10. Jun 16, 2017 #8
    magoo68

    magoo68 Road Train Member

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    Being a 2012 bully dog has a programmer for it I believe
     
    magoo68, Jun 16, 2017
    magoo68, Jun 16, 2017
    #8
    KB3MMX Thanks this.
  11. Jul 21, 2017 #9
    Robert0512

    Robert0512 Bobtail Member

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    Jul 21, 2017
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    Yeah I'm having problems with torque too. I have a 2012 587 peterbuilt and just had the ecm updated now it just doesn't have the pulling power.
     
    Robert0512, Jul 21, 2017
    Robert0512, Jul 21, 2017
    #9
    KB3MMX Thanks this.
  12. Jul 21, 2017 #10
    haz-matguru

    haz-matguru Road Train Member

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    You should have got a truck with a real motor and trans. Paccar engines are junk
     
    haz-matguru, Jul 21, 2017
    haz-matguru, Jul 21, 2017
    #10
    kuzima93, 2013Maxx, dngrous_dime and 4 others Thank this.
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