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

Right now, to buy a 33,000 gvw diesel chassis or tractor trailer the order pipeline means delivery early 2024, if you order now including deposit. We know the delays for the diesel (and gas) pickups. These trucks are needed, and the need is becoming acute, nobody is going to shut down production and bring commercial activity to a halt. They aren't shutting down diesel. It will be a very long time to get the current backlog back to some sort of normal, a very long time to get electric vehicles in quantities and capabilities that match the need. I think anyone who thinks they need to order their next CTD because they are going away in a few years is not being realistic. JMO.
 
jsalbre said:
Seriously though, imagine what a properly designed well thought out diesel electric hybrid HD could be like. Going down hill? Who needs an exhaust brake, just dump everything into batteries and use that to blast you up the next hill. Towing an RV? Dump the excess power into the RV battery bank.

If we’re willing to take the 900# weight penalty of a 6.7L why not a slightly smaller engine and a big bank of batteries?

Hell, treat it like a diesel-electric locomotive and decouple the engine from the drivetrain entirely, just using it as a big generator.

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

Im all for it, but the tech is nowhere near as close as you and others think it is.

Not to mention the infrastructure to support it all... we are a few generations away from that alone.
 
Dave01 said:
Right now, to buy a 33,000 gvw diesel chassis or tractor trailer the order pipeline means delivery early 2024, if you order now including deposit. We know the delays for the diesel (and gas) pickups. These trucks are needed, and the need is becoming acute, nobody is going to shut down production and bring commercial activity to a halt. They aren't shutting down diesel. It will be a very long time to get the current backlog back to some sort of normal, a very long time to get electric vehicles in quantities and capabilities that match the need. I think anyone who thinks they need to order their next CTD because they are going away in a few years is not being realistic. JMO.
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Wishful thinking when yo have states implementing stop-sales on ICE vehicles right now as we speak for the near future (2035).

www.gov.ca.gov

Governor Newsom Announces California Will Phase Out Gasoline-Powered Cars & Drastically Reduce Demand for Fossil Fuel in California’s Fight Against Climate Change | Governor of California

Executive order directs state to require that, by 2035, all new cars and passenger trucks sold in California be zero-emission vehicles Transportation currently accounts for more than 50 percent of…
www.gov.ca.gov www.gov.ca.gov
 
Dave01 said:
Right now, to buy a 33,000 gvw diesel chassis or tractor trailer the order pipeline means delivery early 2024, if you order now including deposit. We know the delays for the diesel (and gas) pickups. These trucks are needed, and the need is becoming acute, nobody is going to shut down production and bring commercial activity to a halt. They aren't shutting down diesel. It will be a very long time to get the current backlog back to some sort of normal, a very long time to get electric vehicles in quantities and capabilities that match the need. I think anyone who thinks they need to order their next CTD because they are going away in a few years is not being realistic. JMO.
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Diesel's don't have to 'go away'. They will price fuel to the point we can't afford it forcing us to buy electric or walk.
 
sanda said:
If they would put a turbo on the 6.4 then we would really have something.
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I've often wondered why Ford hasn't come out with an Ecoboost for their HD lineup. They slap Ecoboost motors in pretty much everything else...

A twin turbo 5.0 V8 Ecoboost would probably put out some seriously impressive horsepower and Low end torque. Would also probably tow really nice too mated to an 8 or 10 speed trans.

Fuel mileage would probably fall somewhere in between their 7.3 gasser and the 6.7 powerstroke.

I love diesel, but honestly a heavy duty turbo charged gas motor would bridge the huge gap between the current gas & TDI options, and probably suit my (and many other people's) needs better, and be cheaper to run than a monster turbo diesel.
 
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8.0l V10...I got one of those...and it is mated to a NV4500HD.20171021_133256.jpg

488 Cubic Inches of gasoline drinking happiness.

It is much more powerful down low than my 6.4l HEMI...But that HEMI is so much faster.

I had a Cummins, but it is gone.

I really Love the gasoline Mopar Trucks

We were supposed to get a 7.0l Banshee motor...but the banshee became the new electric tagline.

And for RAM it is working pretty well with the base 6.4 and available 6.7

Although us enthusiasts always want more
 
Just put a big positive displacement blower on it and drive very quickly from gas station to gas station. :D
 
gimmie11s said:
Wishful thinking when yo have states implementing stop-sales on ICE vehicles right now as we speak for the near future (2035).

www.gov.ca.gov

Governor Newsom Announces California Will Phase Out Gasoline-Powered Cars & Drastically Reduce Demand for Fossil Fuel in California’s Fight Against Climate Change | Governor of California

Executive order directs state to require that, by 2035, all new cars and passenger trucks sold in California be zero-emission vehicles Transportation currently accounts for more than 50 percent of…
www.gov.ca.gov www.gov.ca.gov
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Right, if you consider 2035 the near future then ok, maybe you won't be able to order a 2035 CTD on your 3/4 ton truck. But I find people are talking (I don't mean you) as if diesel pickups and heavy duty trucks are going away in several years, it just isn't happening.
 
jsalbre said:
I don’t think we’re there with technology today, but battery tech is improving rapidly, it won’t be far off.
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Not really. That is the big road block to EV's viability. Battery tech has only really improved incrementally over the last 50 years. And there has been a LOT of money and manpower thrown at it over the years. That big breakthrough in energy storage has been "right around the corner" for more than 20 years, but it never materializes. When I pop the hood on my 22 Ram, I see 2 batteries that look, weigh and function pretty much like the ones in my first car back in the mid-70's.
 
Dave01 said:
Right, if you consider 2035 the near future then ok, maybe you won't be able to order a 2035 CTD on your 3/4 ton truck. But I find people are talking (I don't mean you) as if diesel pickups and heavy duty trucks are going away in several years, it just isn't happening.
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If you are correct, and I hope you are, I can guarantee it won't be for lack of effort on your elected officials' part. Better buckle up!
 
I saw Cummins will have a 6.7 gas engine next two years. Bottom end is similar with new top end for gas. Power specs are supposed to be similar to the diesel counterparts.
 
Brutal_HO said:
The ISB6.7 G is only 560lb.ft.
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This video mentioned HP at around 320 with 660 lb.-ft of torque. Not HO numbers, but the torque number is nice. I wonder if the stroke would be the same to deliver that torque. It would be nice to have a gas truck that doesn't need 5000 RPM to get over a hill.

 
Dave01 said:
Right, if you consider 2035 the near future then ok, maybe you won't be able to order a 2035 CTD on your 3/4 ton truck. But I find people are talking (I don't mean you) as if diesel pickups and heavy duty trucks are going away in several years, it just isn't happening.
Click to expand...
Actually it will happen more quickly than that. Much of Eastern Canada and now 13 states have also adopted the 2025 deadline . That is only 12 years away. Look at what happened to the Charger and Challenger. They could have made a 10 -12 year replacement model going gas but instead went to electric way early. I am afraid our trucks are not far behind. They won't wait until the very last year.
 
Well, the way the world is going, I guess my 2021 will be my final diesel, just sad
 
A HD truck is not a Charger. I'm betting trucks get a reprieve when electrics don't cut it.
 
rb92673 said:
This video mentioned HP at around 320 with 660 lb.-ft of torque. Not HO numbers, but the torque number is nice. I wonder if the stroke would be the same to deliver that torque. It would be nice to have a gas truck that doesn't need 5000 RPM to get over a hill.

Click to expand...

So this would have about 230 more lb.-ft., 50% improvement, over a 6.4. That is a difference maker. The 90 hp less would, I think, make for a bit less foot to the floor performance than the 6.4, but that won't be a big deal if the torque advantage makes towing heavy more realistic. Still not going to match a CTD.

Another aspect of moving from diesel to gas for heavy towing or commercial use is losing the exhaust brake, I think that may be significant for some people.
 
rb92673 said:
This video mentioned HP at around 320 with 660 lb.-ft of torque. Not HO numbers, but the torque number is nice. I wonder if the stroke would be the same to deliver that torque. It would be nice to have a gas truck that doesn't need 5000 RPM to get over a hill.

Click to expand...

The current ISB6.7 G spec is 2,400 RPM max.
 
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