2020 GMC Sierra HD

[deerefan]

My knowledge is limited, but let me share what I have experienced. I have seen Ford V10 engines running large irrigation pumps. I believe they maintain about 3k rpm in doing so. In my younger years, I worked on pile driving equipment. The power packs driving the vibratory hammers were diesel, no gas engines available. The bigger the hammer, the bigger the engine. We had a V32 hammer powered by a 16V-71 Detroit Diesel equipped with 2 blowers and 2 turbos. A beast of a unit. I feel they both have their place, however, for a consistent, continuous load, I do not see how the efficiency and power of a diesel engine can be topped.

 

[buickanddeere]

How am I playing games? You make a claim, I asked you to substantiate it. It's not my responsibility to provide the support for your claims.

I've spent a lot of time working on engine designs and operating dyno's, if you dont agree with what I stated about torque/hp that's fine but nothing I said was false, go ahead and research it. And no I'm not here to get into a pissing match about it.

Since you like examples I can point you to a old 4cyl 2stroke diesel that operated a generator that powered a town, I'd have to find the electrical specs but the engine output was 300hp @ 300rpm giving it a torque output of 5,252ftlbs. Pretty sure the electrical output is higher then a 350hp 5-600ftlb genset.

As for engine designs, we could go all day about bore/stroke/piston speed/piston acceleration/VE/flame propagation etc. but I dont think this is the right thread to go down that path.
Plus typing all this on the phone isnt easy.

Wrong. The 350HP gen set will have a higher Kw output than the 300HP gen set .

 

[buickanddeere]

Serious. How long do you think a car or light truck engine will run under continuous load at rated hp? I知 betting not very long and I知 betting overheating is the first point of failure. What does the high school physics teacher have to do with it?

There is no continuous 100% duty for a car or light truck application , gas or diesel . A few minutes up a hill and it is down the other side .
We have a lot of people mixing up HD applications with light and medium duty applications .
Fact is the percent of million mile diesel pickups is so statistically low . They don稚 matter .
300,000 miles is very high end for any vehicle outside of commercial delivery , taxi and heavy trucking.
The new Tier IV common rail diesels do not have the low cost per mile of the old classic mechanical diesels . Just as one example .All those 2003-2004 Duramax needing new injectors have cost the owners more than any 都avings ? Then there are the Fords that need the EGR delete , head bolts etc . Even the classic Cummins had some that split the block behind the starter and leaked coolant .
Once upon a time the Diesel engine ruled supreme . However with the EPA , Tier IV , fuel prices , and maintenance costs . The DI gasser has pushed the diesel out of the light and even some of the medium duty applications .
You won稚 believe me so try asking someone else with credentials that you may possibly believe regarding 菟ower?

 

[buickanddeere]

My knowledge is limited, but let me share what I have experienced. I have seen Ford V10 engines running large irrigation pumps. I believe they maintain about 3k rpm in doing so. In my younger years, I worked on pile driving equipment. The power packs driving the vibratory hammers were diesel, no gas engines available. The bigger the hammer, the bigger the engine. We had a V32 hammer powered by a 16V-71 Detroit Diesel equipped with 2 blowers and 2 turbos. A beast of a unit. I feel they both have their place, however, for a consistent, continuous load, I do not see how the efficiency and power of a diesel engine can be topped.

Problem is people keep looking at HD applications and then think the same answer fits for light and medium duty applications .
We are forever getting people on here that can not tell the difference between 1960’s gas and diesel farm tractors vs gas and diesel 2019 light highway vehicles .

 

[crreed67]

Yes, the brand that has given me "by far" the least problems as they get older...

Your first clue is, it says Silverado on it...

Don't even get me started on the other two money pits!!

SR

Interesting. I've been researching for a few months...... narrowed it down to F250 or 2500 Silverado. Kinda leaning towards Silverado. Thanks for the input.

 

[deerefan]

Problem is people keep looking at HD applications and then think the same answer fits for light and medium duty applications .
We are forever getting people on here that can not tell the difference between 1960’s gas and diesel farm tractors vs gas and diesel 2019 light highway vehicles .

As you can see in my post, my experiences revolve around heavy to extreme heavy duty applications. However, I do agree gas engines,becoming more powerful and efficient, have been able to replace diesels in some light duty applications. In my case, a gas engine is not feasible.

 

[4570Man]

There is no continuous 100% duty for a car or light truck application , gas or diesel . A few minutes up a hill and it is down the other side .
We have a lot of people mixing up HD applications with light and medium duty applications .
Fact is the percent of million mile diesel pickups is so statistically low . They don稚 matter .
300,000 miles is very high end for any vehicle outside of commercial delivery , taxi and heavy trucking.
The new Tier IV common rail diesels do not have the low cost per mile of the old classic mechanical diesels . Just as one example .All those 2003-2004 Duramax needing new injectors have cost the owners more than any 都avings ? Then there are the Fords that need the EGR delete , head bolts etc . Even the classic Cummins had some that split the block behind the starter and leaked coolant .
Once upon a time the Diesel engine ruled supreme . However with the EPA , Tier IV , fuel prices , and maintenance costs . The DI gasser has pushed the diesel out of the light and even some of the medium duty applications .
You won稚 believe me so try asking someone else with credentials that you may possibly believe regarding �ower?

I do agree with you. I think owning a diesel truck without 6 or more wheels is a waste. I also agree with you about any million mile claim is crazy. The whole truck is junk by then and very rarely is a motor even the blow that kills a truck unless it’s operator error. I also agree with you and heavy duty and light duty application and a big generator that runs continuous duty is definitely heavy duty.

 

[buickanddeere]

I do agree with you. I think owning a diesel truck without 6 or more wheels is a waste. I also agree with you about any million mile claim is crazy. The whole truck is junk by then and very rarely is a motor even the blow that kills a truck unless it’s operator error. I also agree with you and heavy duty and light duty application and a big generator that runs continuous duty is definitely heavy duty.

I am somewhat surprised, baffled and unsure what to do now. Nobody has agreed with me before !!!

 

[bigtiller]

I am somewhat surprised, baffled and unsure what to do now. Nobody has agreed with me before !!!

Buy a lottery ticket.

 

[ovrszd]

I am somewhat surprised, baffled and unsure what to do now. Nobody has agreed with me before !!!

Even a broken clock is right twice a day.