Cat diesel power!!!!

Discussion in 'Trucks [ Eighteen Wheelers ]' started by 550hpW900L, Nov 12, 2008.

Page 8 of 48
  1. Dec 8, 2008 #71
    underpsi

    underpsi Road Train Member

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    Sep 18, 2008
    Toronto, Ont
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    Judging by your setup im guessing your rpms in top gear at 60mph should be slightly over 1400rpm?
     
    underpsi, Dec 8, 2008
    underpsi, Dec 8, 2008
    #71
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  3. Dec 8, 2008 #72
    550hpW900L

    550hpW900L Road Train Member

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    Just how bad is your millage? Dont expect to see over 6mpg.
     
    550hpW900L, Dec 8, 2008
    550hpW900L, Dec 8, 2008
    #72
  4. Dec 8, 2008 #73
    Rock hauler

    Rock hauler Light Load Member

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    Nov 26, 2008
    Deridder La.
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    The best i get is 6 mpg, and that at 80000lb on flat land. mostly 5.7 but mostly run 95000 to 100000lb.
     
    Rock hauler, Dec 8, 2008
    Rock hauler, Dec 8, 2008
    #73
  5. Dec 8, 2008 #74
    beltrans

    beltrans Medium Load Member

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    Nov 26, 2008
    spokane wa
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    well it is 1350 rpms when going 60mph,
    i get around 5-5.5 mpg, but it is by driving 60 mph most of the time, with extremley light foot on the throtlle. this was my first truck i bought. i compare my truck to my relative's one, he owns 01' 387 pete with c-15 6nz, he gets around 7 mpg driving 70-72 mph all the time. all the specs are same.
     
    beltrans, Dec 8, 2008
    beltrans, Dec 8, 2008
    #74
  7. Dec 8, 2008 #75
    550hpW900L

    550hpW900L Road Train Member

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    Has it been to CAT for their awesome updates? What is the boost pressure, what is your pyro reading..... You could have a crack intercooler and not even know.
    You're buddy with the 387 is full of shat unless hes pulling empty trailer around, especially at 72mph.
     
    550hpW900L, Dec 8, 2008
    550hpW900L, Dec 8, 2008
    #75
  8. Dec 8, 2008 #76
    beltrans

    beltrans Medium Load Member

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    Nov 26, 2008
    spokane wa
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    when i bought the truck 2 years ago check engine was coming on and off, took it to a cat dealer they replaced aps, not sure if they updated anything then.
    turbo goes up to 30psi when rpms are 1500 or above, pyrometer never gets over 900, mostly 600-700 cruising and 800-850 going uphill full throttle.
     
    beltrans, Dec 8, 2008
    beltrans, Dec 8, 2008
    #76
  9. Dec 8, 2008 #77
    550hpW900L

    550hpW900L Road Train Member

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    Id still check the air to air, it should get 6mpg easy driving 60mph.
     
    550hpW900L, Dec 8, 2008
    550hpW900L, Dec 8, 2008
    #77
  10. Dec 8, 2008 #78
    cat from the valley

    cat from the valley Medium Load Member

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    Dec 8, 2008
    jamaica
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    am in jamaica wit a 00 sterling c-15 ecm got a bite a month ago now am down from 550@1850 to 500@1650 wats the price of a good550@1850ecm
     
    cat from the valley, Dec 8, 2008
    cat from the valley, Dec 8, 2008
    #78
  11. Dec 9, 2008 #79
    550hpW900L

    550hpW900L Road Train Member

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    Depends, as cheap as $600 and as much as $2600.
     
    550hpW900L, Dec 9, 2008
    550hpW900L, Dec 9, 2008
    #79
    cat from the valley Thanks this.
  12. Dec 9, 2008 #80
    cat from the valley

    cat from the valley Medium Load Member

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    Dec 8, 2008
    jamaica
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    ok question the 6nz serial u posted for the pete will it be ok in the sterling? i know wit detroit that the pin wiring is diferent for some trucks is it the same for cat?
     
    cat from the valley, Dec 9, 2008
    cat from the valley, Dec 9, 2008
    #80
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