Isx15 smoking! Help

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Black389, Jun 24, 2019.

  1. Roberts450

    Roberts450 Road Train Member

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    I hauled 105,500 with 450hp for years and it did just fine here in the northwest.
     
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  3. spsauerland

    spsauerland Road Train Member

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    Keep us posted.
     
  4. AModelCat

    AModelCat Road Train Member

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    We ran a 475 C-15 in a tridrive/tridem trailer configuration grossing about 118k in the BC mountains. I think you're kidding yourself that 450 is inadequate for a measly 84k. The 475 wasn't the quickest up the hill but it held its own. The guy with the Signature 600 with the same weight and setup could pull the hills about a half gear higher.
     
    Last edited: Jun 28, 2019
  5. spsauerland

    spsauerland Road Train Member

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    Most drivers couldn't feel the difference between a 475 vs a 550. 475 pre-low NOx beats a 550 low NOx any day of the week.
     
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  6. AModelCat

    AModelCat Road Train Member

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    This was a stock MBN bridge engine too.
     
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  7. Black389

    Black389 Light Load Member

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    That could be the problem someone hacked up the tune. But why da #### u assuming id show off? Dont come here sayin #### like that dont got non good to say dont post. Hater
     
  8. Humblepie

    Humblepie Pontificator

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    Yep I’m a hater. But I’m still trucking.
     
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  9. Black389

    Black389 Light Load Member

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    Im leaning toward the c15 ill keep ya posted thanks for guiding me really appreciate it. Would i need to change any gear ratio to make c15 be perfect? Or would it work out with what i have right now, i have 3:55 and 18 speed
     
  10. Rubber duck kw

    Rubber duck kw Road Train Member

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    They'll work fine until you get some money back in your pocket and the truck's pocket.
     
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  11. Black389

    Black389 Light Load Member

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    Thanks!
     
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