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Factory REV limiter …..

Discussion in 'Trucks [ Eighteen Wheelers ]' started by bonder45, Apr 9, 2023.

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  1. Apr 9, 2023 #1
    bonder45

    bonder45 Road Train Member

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    So my two new trucks came with a 1700 max RPM REV limiter ….. the question is do I leave it there or push it up to 2000.

    I’ve never had one before nor do I know anything about it so looking for some feedback!
     
    bonder45, Apr 9, 2023
    bonder45, Apr 9, 2023
    #1
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  3. Apr 9, 2023 #2
    loudtom

    loudtom Road Train Member

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    I've never seen an advantage to pushing mine past 1500. I normally cruise 1100-1300 and 1300-1500 on long pulls or while engine braking.
     
    loudtom, Apr 9, 2023
    loudtom, Apr 9, 2023
    #2
  4. Apr 9, 2023 #3
    RockinChair

    RockinChair Road Train Member

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    CC, TX
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    Unless the HP peak is above 1700 there's really no point in changing it, especially if 1700 is the engine's listed governed speed.
     
    RockinChair, Apr 9, 2023
    RockinChair, Apr 9, 2023
    #3
  5. Apr 23, 2023 #4
    Dadetrucking305

    Dadetrucking305 Heavy Load Member

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    1300 is too low on an ISX or X15 in the long run.That low rpm high torque causes liner fretting and eventually dropped liners.1500 rpm and above.
     
    Dadetrucking305, Apr 23, 2023
    Dadetrucking305, Apr 23, 2023
    #4
    krupa530, Oxbow and lester Thank this.
  7. Apr 23, 2023 #5
    MacLean

    MacLean Road Train Member

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    This. You start lugging those engines and they’ll start slobbering and using oil.
     
    MacLean, Apr 23, 2023
    MacLean, Apr 23, 2023
    #5
    krupa530, Oxbow and Dadetrucking305 Thank this.
  8. Apr 23, 2023 #6
    Big Road Skateboard

    Big Road Skateboard Road Train Member

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    Be easier to advise if we knew what engine
     
    Big Road Skateboard, Apr 23, 2023
    Big Road Skateboard, Apr 23, 2023
    #6
    Cat sdp and Oxbow Thank this.
  9. Apr 23, 2023 #7
    bonder45

    bonder45 Road Train Member

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    Oct 2, 2011
    Williston, ND
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    605/2050 X15
     
    bonder45, Apr 23, 2023
    bonder45, Apr 23, 2023
    #7
    Oxbow Thanks this.
  10. Apr 23, 2023 #8
    Big Road Skateboard

    Big Road Skateboard Road Train Member

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    Autos? Assuming not
     
    Big Road Skateboard, Apr 23, 2023
    Big Road Skateboard, Apr 23, 2023
    #8
    Oxbow Thanks this.
  11. Apr 23, 2023 #9
    bonder45

    bonder45 Road Train Member

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    Oct 2, 2011
    Williston, ND
    0
    No 18 speed
     
    bonder45, Apr 23, 2023
    bonder45, Apr 23, 2023
    #9
    Oxbow Thanks this.
  12. Apr 23, 2023 #10
    Big Road Skateboard

    Big Road Skateboard Road Train Member

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    Pretty sure they're 1900 RPM engines. I would personally, but you may not need it.

    Peak torque is @ 1000 IIRC.

    How's it geared? And where/what are you pulling?
     
    Last edited: Apr 23, 2023
    Big Road Skateboard, Apr 23, 2023
    Big Road Skateboard, Apr 23, 2023
    #10
    Oxbow Thanks this.
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