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Highest MPG while loaded

Discussion in 'Trucks [ Eighteen Wheelers ]' started by 05 FreightShaker, Jan 30, 2014.

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  1. Feb 5, 2014 #41
    05 FreightShaker

    05 FreightShaker Light Load Member

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    Jan 20, 2013
    Houston
    0
    Wow thats pretty amazing! What RPM's do you cruise at? I cruise at about 1300rpm's on my 14.0l detroit
     
    05 FreightShaker, Feb 5, 2014
    05 FreightShaker, Feb 5, 2014
    #41
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  3. Feb 5, 2014 #42
    dude6710

    dude6710 Road Train Member

    2,162
    622
    Mar 26, 2010
    MN
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    1425-1450 I wish it could be lower. But it seems to work alright.
     
    dude6710, Feb 5, 2014
    dude6710, Feb 5, 2014
    #42
  4. Feb 5, 2014 #43
    05 FreightShaker

    05 FreightShaker Light Load Member

    265
    30
    Jan 20, 2013
    Houston
    0
    I would adjust the fueling table and torque tables to taper off at 1200 RPM if i could work on CATs. What RPM's do you shift at?
     
    05 FreightShaker, Feb 5, 2014
    05 FreightShaker, Feb 5, 2014
    #43
  5. Feb 6, 2014 #44
    dude6710

    dude6710 Road Train Member

    2,162
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    Mar 26, 2010
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    Turbo is laggy. I shift at 1600 so it won't lug. The tune works great it don't need any changes.
     
    dude6710, Feb 6, 2014
    dude6710, Feb 6, 2014
    #44
  7. Feb 6, 2014 #45
    05 FreightShaker

    05 FreightShaker Light Load Member

    265
    30
    Jan 20, 2013
    Houston
    0
    Oh ok that's why. Stock turbo?
     
    05 FreightShaker, Feb 6, 2014
    05 FreightShaker, Feb 6, 2014
    #45
  8. Feb 6, 2014 #46
    dude6710

    dude6710 Road Train Member

    2,162
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    Mar 26, 2010
    MN
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    No stage 1 pdi
     
    dude6710, Feb 6, 2014
    dude6710, Feb 6, 2014
    #46
  9. Feb 6, 2014 #47
    05 FreightShaker

    05 FreightShaker Light Load Member

    265
    30
    Jan 20, 2013
    Houston
    0
    Isn't a stage 1 PDI turbo a re-branded borg-warner 171702? That big boss nozzle ring turbo would solve the turbo lag but it costs a pretty penny. A VGT turbo would also solve that but too many moving parts.
     
    05 FreightShaker, Feb 6, 2014
    05 FreightShaker, Feb 6, 2014
    #47
  10. Feb 6, 2014 #48
    dude6710

    dude6710 Road Train Member

    2,162
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    Mar 26, 2010
    MN
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    I believe so. They use it on the Detroit too. It was much cheaper than a stock replacement from cat.
     
    dude6710, Feb 6, 2014
    dude6710, Feb 6, 2014
    #48
  11. Feb 6, 2014 #49
    05 FreightShaker

    05 FreightShaker Light Load Member

    265
    30
    Jan 20, 2013
    Houston
    0
    How much is a replacement from cat? Detroit stock costs about 750-900 here in houston but PDI is better because it doesn't have a waste gate. I don't even think stock turbos can even handle 600hp?
     
    05 FreightShaker, Feb 6, 2014
    05 FreightShaker, Feb 6, 2014
    #49
  12. Feb 6, 2014 #50
    dude6710

    dude6710 Road Train Member

    2,162
    622
    Mar 26, 2010
    MN
    0
    It was like 2800 because of the dumb emissions turbo Mbl series.
     
    dude6710, Feb 6, 2014
    dude6710, Feb 6, 2014
    #50
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