Anyone in here familiar with Cat engine electronics?

Discussion in 'Expediter and Hot Shot Trucking Forum' started by rccarlson22, Jul 6, 2021.

  1. crocky

    crocky Road Train Member

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    Yeah, that's why I stayed away from those. They are cool trucks and I like them but all the engines are underpowered. It's possible could be gearing but most guys I've talked to say they are underpowered. That's both with the 12.9 or the cat so it's not a cat-specific thing.
     
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  3. rccarlson22

    rccarlson22 Light Load Member

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    It’s got power when hauling, but you gotta wait for it to build up. I’m pretty sure the new tranny needs to be set when to shift, it shifts way too early and I lose boost. I agree it could use some more power but it’s not horrendously bad. I’m on par with the semis
     
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  4. Brandonpdx

    Brandonpdx Road Train Member

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    Too bad they didn't put the C9's in many of those. That's a proper truck engine. Wet sleeve. Up to 1200 ft/lbs or so. Most of those ended up in motorcoaches I think.
     
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  5. Lite bug

    Lite bug Road Train Member

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    Pardon my ignorance, what is the advantage of Wet versus Dry sleeve ? Thanks
     
  6. Roberts450

    Roberts450 Road Train Member

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    Wet sleve or liners can be replaced as they wear out where dry sleve or parent bore engines, the cylinder are actually part of the block and need to be honed/bored and over sized pistons installed when they get worn out enough.
     
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  7. Brandonpdx

    Brandonpdx Road Train Member

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    Parent bore motors are commonly referred to as "throw-away engines" in the heavy duty world, where an engine may actually get used for enough hours or miles to wear it out to the point of needing a rebuild. All automotive sized engines in cars and light trucks are parent bore up to and including many medium duty diesel engines such as the B6.7 Cummins, CAT 3126/C7, All Duramax and Powerstroke engines. These can last a long time...half a million miles or more with proper maintenance, but the whole engine block has to come out of the truck and be re-machined to rebuild...a tedious and expensive process that most of the time is not worth it when the cost of another good used engine is considered.

    A wet liner heavy duty diesel engine will be rebuildable basically unlimited times without removing the block by replacing the cylinder packs, commonly referred to as an "in-frame". All big truck engines are like this but there is a cut-off down in the upper medium range where this type of engine design starts. The CAT C9 is the smallest one like that. Also the Cummins ISC8.3 and Navistar DT466 I think. Better resale value since they are considered more serviceable.
     
  8. rccarlson22

    rccarlson22 Light Load Member

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    After 2 weeks of hauling empty containers through Houston...I’ve found the tranny needs to be column shifted when hauling. I know when to shift and keep it all happy. With that said, I’m going to have them put two maps on there. Basically one is normal and the other will be tow/haul mode. It doesn’t pull harder than the 3500, but it pulls in a wider rpm range and feels way more “significant”

    I’ve since discovered the turbo is also new, and larger than oem. So I got three factors to sort through 1. Larger diameter tires 2. Different tranny 3. Larger turbo


    Best part is...no truck payments
     
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  9. Lite bug

    Lite bug Road Train Member

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    No truck payments…..now you are stream boating !
     
  10. rccarlson22

    rccarlson22 Light Load Member

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    More like canoeing with a duct tape paddle but hey it could be worse
     
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  11. Brandonpdx

    Brandonpdx Road Train Member

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    You want to put larger diameter tires on it or it already has larger diameter tires? If anything lower-profile tires would be the direction to go on a truck that has modest power. Slightly better gearing leverage by effectively raising the final drive ratio.
     
    Bean Jr. Thanks this.
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