Can I put an 18spd in place of my 10 spd on my paccar 13?

Discussion in 'Questions From New Drivers' started by teamscanada, Aug 30, 2021.

  1. teamscanada

    teamscanada Bobtail Member

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    Jul 21, 2021
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    I have paccar 13 with 455 with 10 speed can I put 18 speed for more power or/and boost up torque power or ? ….with 10 speed power power on the hills

    my setting 340-455 hp and set at 455 hp 4A243A1F-2115-4F29-9980-7E05407360B7.jpeg
     
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  3. teamscanada

    teamscanada Bobtail Member

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    Jul 21, 2021
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  4. Magoo1968

    Magoo1968 Medium Load Member

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    I believe they can’t raise the torque but can uprate to 485 hp same torque though. The 500 hp from those years use a bigger turbo. Seeing that your Canadian I’d talk to diesel spec out of Montreal about a non factory safe tune .
     
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  5. teamscanada

    teamscanada Bobtail Member

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    Jul 21, 2021
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    But if u look at picture say only 340 to 455 …that means I can still boost up and I like to put better transmission in like 18
     
  6. Judge

    Judge Road Train Member

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    Turn the fuel rail pressure up to 16lbs, speed up,don’t know max torque on Paccar, I’d say you could go to 1600-1650
    Most wont max them.
     
  7. AModelCat

    AModelCat Road Train Member

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    You're maxed out by the looks of it.
     
  8. Long FLD

    Long FLD Road Train Member

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    A 13 speed will be more drivable because you can split the gears. Since it’s out of warranty I’d just find a place and see if they’ll put the 510/1850 tune in it.
     
  9. flood

    flood Road Train Member

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    Check the torque rating on the trans.. most are 1,800. If so the max you can go is 1,750.
     
  10. Brettj3876

    Brettj3876 Road Train Member

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    If they turn up to 1850 they'll probably just sign a waiver saying it's on him if something goes boom
     
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  11. Magoo1968

    Magoo1968 Medium Load Member

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    To turn up through a dealership they have to send a request to another country who only goes by turbo and transmission specs . That’s why I recommended aftermarket through a known good company. 18 speed or 13 speed will only make a noticeable difference in top few gears. Being Canadian he probably hauls 100,000 lbs or 87000 lbs if a tandem.
     
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