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can any1 take a look at this dyno ????

Discussion in 'Trucks [ Eighteen Wheelers ]' started by mert, Jul 19, 2013.

Page 1 of 2
  1. Jul 19, 2013 #1
    mert

    mert Light Load Member

    90
    10
    Jul 13, 2013
    0
    t600 2007 736k mile 20130719_000225.jpg 20130719_000237.jpg
     
    mert, Jul 19, 2013
    mert, Jul 19, 2013
    #1
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  3. Jul 19, 2013 #2
    BullDoggin

    BullDoggin Light Load Member

    183
    56
    Jan 27, 2013
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    Ok. Now what?
     
    BullDoggin, Jul 19, 2013
    BullDoggin, Jul 19, 2013
    #2
  4. Jul 19, 2013 #3
    2bit

    2bit Light Load Member

    178
    39
    Mar 13, 2012
    Medford,WI
    0
    I don't know much about dyno reports but the torque seems to high compared to the hp. I think the formula is (torque x RPM)/5252. The 1st reading on the second page (5434.12 x 1573.5)/5252=1628.06 hp or (410.43hp x 5252)/1573.5RPM=1369.9 ft-lbs torque. What gear were you in? Mph sure is slow for that RPM.
     
    2bit, Jul 19, 2013
    2bit, Jul 19, 2013
    #3
  5. Jul 19, 2013 #4
    mert

    mert Light Load Member

    90
    10
    Jul 13, 2013
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    i wanna know if the parameters are ok for this type of truck , im bout to buy it !
     
    mert, Jul 19, 2013
    mert, Jul 19, 2013
    #4
  7. Jul 19, 2013 #5
    little cat 500

    little cat 500 Road Train Member

    1,950
    1,004
    Jan 17, 2010
    Abbottstown PA
    0
    what rear end gear is in the truck
     
    little cat 500, Jul 19, 2013
    little cat 500, Jul 19, 2013
    #5
  8. Jul 19, 2013 #6
    mert

    mert Light Load Member

    90
    10
    Jul 13, 2013
    0
    3.55 sir with 285/r75 22.5 475hp as it states on the paper
     
    mert, Jul 19, 2013
    mert, Jul 19, 2013
    #6
  9. Jul 19, 2013 #7
    little cat 500

    little cat 500 Road Train Member

    1,950
    1,004
    Jan 17, 2010
    Abbottstown PA
    0
    so your tq is 1650 not to bad hp is kinda low for a 475
     
    little cat 500, Jul 19, 2013
    little cat 500, Jul 19, 2013
    #7
  10. Jul 19, 2013 #8
    Ashman_42

    Ashman_42 Light Load Member

    248
    64
    Aug 14, 2011
    0
    If its a C15 mxs or nxs the boost is low, should be in the 40psi area. Might explain why the hp levels are a bit low.
     
    Ashman_42, Jul 19, 2013
    Ashman_42, Jul 19, 2013
    #8
  11. Jul 19, 2013 #9
    mert

    mert Light Load Member

    90
    10
    Jul 13, 2013
    0
    Cummins isx
     
    mert, Jul 19, 2013
    mert, Jul 19, 2013
    #9
  12. Jul 19, 2013 #10
    Mr. Haney

    Mr. Haney Road Train Member

    2,693
    2,035
    Dec 17, 2008
    0
    The torque would be divided by the rear axle ratio to come up with the correct number at the ground. Then you need to calculate driveline loss to come up with flywheel torque. There are also other things to consider, was the engine fan on during this run? This will effect the final number more than most people would think.
     
    Mr. Haney, Jul 19, 2013
    Mr. Haney, Jul 19, 2013
    #10
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