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Ford 7.3 gas engine!

Discussion in 'Expediter and Hot Shot Trucking Forum' started by Pucsc, Jul 27, 2019.

Page 3 of 5
  1. Jul 28, 2019 #21
    Pucsc

    Pucsc Bobtail Member

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    Jul 27, 2019
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    The hp and torque max numbers aren't the issue for gas engines, it's getting those numbers at low rpms with as little fuel as possible. A new cummins 3500 dually like mine can be bought new for 47k, but all of the emissions stuff is driving me nuts. It would be a dream to go back to a gas engine.
     
    Pucsc, Jul 28, 2019
    Pucsc, Jul 28, 2019
    #21
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  3. Jul 28, 2019 #22
    Adieu

    Adieu Light Load Member

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    Dec 3, 2018
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    Oh for sure

    Reader-full of pesky three letter emission codes, those consumer diesels...

    DEF this, SCR and EGR that, blockage what blockage, feasibility say again feasibility? what does that even frikkin mean??? Etc etc

    And then some kid in Puerto Rico tells the internet that he just sawed it all off and now gets 1.5x horsepower AND 2.0x mpg... and the sad thing is, you kinda believe him
     
    Adieu, Jul 28, 2019
    Adieu, Jul 28, 2019
    #22
    stillwurkin and Pucsc Thank this.
  4. Jul 28, 2019 #23
    tommymonza

    tommymonza Road Train Member

    4,519
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    S.W. Florida
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    I don't see where bigger cubes in a gasser is going to get you better economy .

    Bigger cubes =more power =more air x more fuel.
     
    tommymonza, Jul 28, 2019
    tommymonza, Jul 28, 2019
    #23
  5. Jul 28, 2019 #24
    Pucsc

    Pucsc Bobtail Member

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    Jul 27, 2019
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    It's still dependent on what rpm the engine runs and where the peaked torque and hp numbers are achieved. More rpms=more fuel. Larger cube engines generally make their power with fewer rpms. With the newer timing controls and cam designs, the theory is that they can achieve the same or more power at a lower point in the rpm range. I'm not saying ford can do it yet, but it peaked my interest when listening to the engineer talking about the goals of the new 7.3.
     
    Pucsc, Jul 28, 2019
    Pucsc, Jul 28, 2019
    #24
  7. Jul 29, 2019 #25
    singlescrewshaker

    singlescrewshaker Road Train Member

    4,817
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    Dec 31, 2017
    Little Havana, FL
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    A guy on another fourm ran a '06 F350 4.30 rear, 2wd with the 6.8L v10 for a hotshot. I think he dumped it around 230k miles. If I recall correct, 34k lb gross weight, minimum breakdowns, & averaged about 6mpg on IFTA quarterlys.
    Just getting fuel every 200 miles seems terrible to me.
    I believe Gas auxiliary tanks have higher standards & are more spendy. Something to look into..

    Not my cup of tea, but maybe yours..
     
    singlescrewshaker, Jul 29, 2019
    singlescrewshaker, Jul 29, 2019
    #25
    stwik Thanks this.
  8. Jul 29, 2019 #26
    Adieu

    Adieu Light Load Member

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    34k lb?

    Not according to Ford, not even close, GCWR 23k / tow ~16k

    Your buddy was just being a brazen scofflaw
     
    Adieu, Jul 29, 2019
    Adieu, Jul 29, 2019
    #26
  9. Jul 29, 2019 #27
    singlescrewshaker

    singlescrewshaker Road Train Member

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    Dec 31, 2017
    Little Havana, FL
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    My 2012 Ram 6.7L cummins g56, 3.73 was only rated by dodge for 21000 gcvwr. It lived between 27k-36k its entire life.

    Dot goes by whatever weight you register for. If the axles are all legal, & you're at or under the registered gross you're good. Ford, Ram, & GM's GCWR means exactly diddly squat unless it's stamped in the door jab..
     
    singlescrewshaker, Jul 29, 2019
    singlescrewshaker, Jul 29, 2019
    #27
    Pucsc, stwik, Lite bug and 1 other person Thank this.
  10. Jul 29, 2019 #28
    Adieu

    Adieu Light Load Member

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    Dec 3, 2018
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    Wait what?

    I mean I guess I have noticed that my grocery getter truck has similar engine specs to tractor trailers of days gone by... but still...

    Why do they under-rate then?
     
    Adieu, Jul 29, 2019
    Adieu, Jul 29, 2019
    #28
  11. Jul 29, 2019 #29
    AModelCat

    AModelCat Road Train Member

    29,206
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    Jul 7, 2015
    Canuckistan
    0
    The new diesels are hard on fuel. My old service truck was a 2014 F550 with the 6.7L Powerstroke and 6 speed auto. 95% of the time I was around 18,000 lbs when I rolled onto the scales. I was lucky to see anything better than about 7 - 7.5 MPG out of it.
     
    AModelCat, Jul 29, 2019
    AModelCat, Jul 29, 2019
    #29
  12. Jul 29, 2019 #30
    24kHotshot

    24kHotshot Heavy Load Member

    801
    874
    Feb 19, 2019
    New York
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    My truck (2019 6.7 cummins/Aisin) with an empty trailer is 20k and I get 11 mpg that's with 4.10s at 70-75 mph with a heavy foot. If I stay at 65 or below it gets better. I'm still in the break in period too and was told I'll get better mileage after the break in period.
     
    24kHotshot, Jul 29, 2019
    24kHotshot, Jul 29, 2019
    #30
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