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What to do when upgrading our truck??

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  • #31
    Originally posted by Second Chance View Post

    Don't be so hard on yourself, Brian.
    bertschb I completely agree with Second Chance Rob. This forum is all about helping each other learn things about our RVs (and TVs). We all have different strengths, different backgrounds and different experiences. Where else on the internet can you have a "truck discussion" that stays a friendly as it does here .

    Rob (one of the many)
    Cate & Rob
    (with Border Collies Molly & Angel + Kitties Hazel & Elsie)
    2015 Reflection 303RLS
    2022 F350 Diesel CC SB SRW Lariat
    Bayham, Ontario, Canada
    • Likes 1

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    • #32
      Guys - thanks to Brian bertschb asking the question, I too just learned from our talented and VERY knowledgeable automotive engineer crew about max torque and WOT. You guys are awesome !

      Jim Guest - it was great talking Camaro and Chevelle stories at the rally from you, a GM power train engineer (a guy who knows what he is talking about) ........beverages and talking engines.....can't wait !

      Dan
      Dan & Carol
      2014 303RLS Reflection #185 (10/2013 build)
      2012 Silverado LTZ Crew Duramax 2500HD - 2700/16K Pullrite Superglide
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      • #33
        I'd love to sit around a fire and LISTEN to conversations about cars but I woudn't be SPEAKING at that gathering :-)
        Brian & Kellie
        2020 Grand Design Solitude 310GK-R, FBP, MORryde IS, 1,460w solar and 540ah BBGC3
        2020 Ford F-350 Platinum SRW PSD Tremor, 60g TF fuel tank, Hensley BD3-F air bag hitch

        Previous setups:
        2019 Grand Design Solitude 373FB-R, 2019 Ford F-350 Platinum DRW Powerstroke, Hensley BD5 air bag hitch
        2016 Grand Design Reflection 318RST, 2016 GMC 3500 Denali SRW Duramax, Hensley BD3 air bag hitch

        Comment

        • #34
          So...Gypsies ... did any of this conversation help you with your original question? If not, please restate what is still perplexing and we'll again.
          Forum moderators are not GD employees--we are volunteers and owners presumably just like yourself. Unless specifically mentioned otherwise, we have nothing to gain should you choose to purchase a product or engage a service we discuss on this forum.

          2017 Ford F-350 DRW, '19 315RLTSPlus
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          • #35
            Originally posted by 315RLTSinPA View Post

            There is no need for WOT. My truck makes its 800lbs of torque at 1600rpm and 400hp at 2800rpm.
            The published torque curves for all engines (gasoline or diesel) are typically the best the engine can do at "wide open throttle" or 100% throttle position.
            Under this 100% curve are a whole series of possible torque curves based on throttle pedal position.
            The attached is for "concept only" The scales don't matter.
            The only way to be at maximum rated torque at any given RPM is to have the throttle wide open. At part throttle, you will be on one of the lower torque curves.

            Rob
            Attached Files
            Cate & Rob
            (with Border Collies Molly & Angel + Kitties Hazel & Elsie)
            2015 Reflection 303RLS
            2022 F350 Diesel CC SB SRW Lariat
            Bayham, Ontario, Canada
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            • #36
              Rob,

              Nice graph on the various throttle or load conditions with respect to diesels. I believe we have made a good case in purchasing a truck based on the need.

              Jim
              Last edited by Guest; 05-15-2020, 10:26 AM.

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              • #37
                Originally posted by 315RLTSinPA View Post

                I don't think you have an understanding about modern diesels. There is no need for WOT. My truck makes its 800lbs of torque at 1600rpm and 400hp at 2800rpm.
                See posts #7 & #8. Think again.

                You have completely missed the point of this discussion.

                Jim
                Last edited by Guest; 05-15-2020, 04:47 PM.

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                • #38
                  Originally posted by Gypsies View Post
                  I know this is an ongoing question, but I guess I'll open up the can of worms.

                  We just purchased a Grand Design Imagine 2250RK. We currently pull this (about 8100 #) with a Ford F-150, 5.0 with a 3.55.
                  No problem! However, I am considering upgrading to a Ford F-250 but not sure about a diesel because we use the truck for an everyday vehicle as well. Diesels aren't built for starting and stopping.

                  All my research say that diesels are great for mountainous regions, but I don't think we will be in the mountains often. We live in SC and will be relocating to Ohio due to family. (I'll reserve my comments at this time) We will travel south and west and yes end up occassionally in Oregon. (I know, mountains)

                  Gassers struggle in the mountains and diesels seem unaffected. I am interested really in personal experience. What do you find works the best for the lifestyle I've outlined above. I don't want to buy a truck and wish I had a bigger gas engine or should have opted for a diesel.

                  Just looking for real genuine experiences to help me decide my best plan of action to upgrade.

                  Blessings,

                  Scott

                  Scott, Am I understanding correctly that the travel weight of your 2250RK is 8100 lbs?
                  Dave and Sue
                  2020 GD 2250RK
                  2019 F-150 XLT, 5.0, 4WD, SB
                  Curt 17500 WDH, 3.55
                  GY Endurance, Dexter EZ Flex
                  SCPO(SW) USN, (Ret), HP: Tampa Bay ⚓️🇺🇸

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                  • #39
                    I moved from a Silverado HD duramax to a Ram 1500 because I didn't need that much torque anymore and IMHO half tons are so much nicer to drive unloaded . I also believe if you stay well within the limits and set the truck up properly it can be very stable . am I correct in saying a gas motor @ 4000 rpm isnt necessarily working any harder than a diesel @ 2000 rpm ?

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                    • #40
                      Originally posted by buffalobill View Post
                      I moved from a Silverado HD duramax to a Ram 1500 because I didn't need that much torque anymore and IMHO half tons are so much nicer to drive unloaded . I also believe if you stay well within the limits and set the truck up properly it can be very stable . am I correct in saying a gas motor @ 4000 rpm isnt necessarily working any harder than a diesel @ 2000 rpm ?
                      buffalobill

                      Completely agree. I drive a half ton and purchased a trailer that the truck could handle. Not looking to go larger, and do not need a 6.6L Duramax. Having stated that, I have driven the 6.6L Duramax and it sure is a load of fun. Many great trucks out there where If I were to buy today I would most likely opt for the GMC half ton 3.0L diesel. Its hard to ignore 35+ MPG.

                      An engine running at higher RPM will typically wear faster than one operating at half the revolutions. However, in my case, I rarely ever see 4000 RPM with my 5.3L. Most of my operating range is at 2100 with open converter pulls on grades at 2800.

                      Jim
                      Last edited by Guest; 06-14-2020, 05:07 PM.

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