Why are there no serious HD Gas engines that could compare to a HO Cummins?

[Brutal_HO]

Spec is "governed" speed for the current ISB6.7 G (LNG) commercial engine for buses, transit vehicles, etc. .

No data I've seen for a "gasoline" version.

 

[MEGA HO]

I don’t think we’re there with technology today, but battery tech is improving rapidly, it won’t be far off.

I doubt there's enough Lithium in the world to replace EVERY ICE vehicle with EV (battery operated).

Batteries are for city commuters and are not an answer, no one has time to sit and wait for hours to charge it after driving it for one hour. If we want to go electric we need to develop hydrogen fuel cells tech. It's still electric but it generates its own power rather than storing it, H2 refills are as quick as filling up your tank. There are currently a few companies working on this tech and there are prototype cars but there's little interest from governments and there's no infrastructure to support this tech.

 

[jsalbre]

I doubt there's enough Lithium in the world to replace EVERY ICE vehicle with EV (battery operated).

Batteries are for city commuters and are not an answer, no one has time to sit and wait for hours to charge it after driving it for one hour. If we want to go electric we need to develop hydrogen fuel cells tech. It's still electric but it generates its own power rather than storing it, H2 refills are as quick as filling up your tank. There are currently a few companies working on this tech and there are prototype cars but there's little interest from governments and there's no infrastructure to support this tech.

Oh, I doubt we’ll replace every ice vehicle with battery power. At least not with current battery chemistry. Who know what someone will come up with one day though. My comments above were for hybrid systems, which can work quite well. In fact, if the new Hurricane I6 3.0TT comes to the heavy duty trucks I bet that’s how they do it. The engine is much lighter than the Hemi. Take that and throw 1000# of batteries and electric motor on there and you’ll have a truck that weighs a bit less than the Cummins, puts out probably 700-800 HP, gets 30mpg cruising with a light load, and can do short around town runs without even running the engine. This is all speculation of course, but it’s not out of the realm of possibility. I know that recharging it wouldn’t be free from a plug, but a lot of people with hybrids never plug them in and get all their charge from regenerative braking.

I tend to agree that fuel cell is the most likely and logical long term path forward. You can get fuel cell cars in California I believe. I remember seeing a number of fuel cell Hondas running around when I was in LA for work a few years ago, so someone has started building an infrastructure.

 

[gonecamping]

I haven't seen any better than what have for towing.

 

[jetrinka]

6.4 liters isn't big?! You guys are hurting my ego!!!

 

[chas0218]

I just returned from a 1600 mile round-trip towing an enclosed car trailer with my '16 3500 HO CC SRW. Running 70-75mph or so, averaged ~11.3 mpg. Diesel around here is currently nearly $2/gal more than gas, and when you add DEF and oil changes and fuel filter changes, etc, the running costs of a diesel are crazy more expensive than a gasser. But there are no comparable RAM gassers that will tow over ~17K of trailer! Ford is king of the gasser hill currently, but they pale in comparison to the Cummins HO. The Cummins is certainly a great engine, and a very capable puller, but seriously, it would make way more financial sense to build a 8L+ monster gasser that would compare with the Cummins. I know it can be done, and financially it has to be pretty compelling I'd think.

I towed for quite a few years with a 454 Chevy 3500, and it got the job done and never complained. Certainly the Cummins I replaced it with was way more capable, but also more expensive to run.

I love the Cummins and just ordered a '23, but if there was a viable option, I'd go for gas in a heartbeat!

My trucks tow rating with 4.10s and mega cab is 16,660. I'm pretty sure it's capable of 17k but in a 2500 that's perfectly fine by me.