Cummins engine that never was..

[Renze]

Apparently, Cummins wanted to make a V6 version of the V8 now used by Nissan:

https://www.motortrend.com/news/0612dp-new-cummins-v6-and-v8/

 

[aba4430]

Just FYI - Nissan stopped using the Cummins sourced V8 5-liter diesel in late 2019. There were numerous issues with the Titan HD diesel trucks. Starting in 2020 the HD's were equipped solely with the 5.6 liter VK56VD motors.

 

[Renze]

There were numerous issues with the Titan HD diesel trucks.

With the trucks, or with the engines ?

 

[aba4430]

Due to the engines.

 

[Tinhack]

Apparently, they haven't gotten around that problem with the VK56VD.

 

[aba4430]

The VK56VD had issues also until late 2019. The 2020 and beyond trucks with the VK56VD gassers are fine. I can link you to the specifics if you are interested. I had a non-hd 18 Pro-4X that I drove for ~43.5k miles. No issues. However my VK56VD engine was within the scope of the defect. I traded it in 2023 for a 23 Pro-4X non-hd again, and now have a bit under 19k miles on it. No issues. One of the most under rated trucks out there.

 

[Renze]

Due to the engines.

I didnt know that. There is one 5.0 Cummins at a grey market importer here in Holland, although ive never seen one.
Ram 1500 converted to propane is most popular here nowadays. Two or three in our town, as redneck status symbol.

Anyways, i found that article about Cummins V8 while searching for the origins of the VT-903-660 in the Bradley AFV, which apparently is the predecessor of the VT8-460 found in the Israeli M51 Sherman upgrade, which was a souped up V950 short stroke V8 for trucks in the era that people that were used to gas engines, preferred a high rpm short stroke V8 diesel over the turbocharged inline 6 NH series, though in class 8 trucks, demand for the V8 disappointed. Cummins just doesnt have luck with V8 configurations

 

[Hay Dude]

I just saw a Generator with a V-8 Cummins last week.

 

[Renze]

I just saw a Generator with a V-8 Cummins last week.

All the Cummins V8 engines were high rpm short stroke engines, to replace a gasoline engine in medium duty applications without overstraining existing drivelines.. So lots of noise and little low end torque, as opposed to the NT855. It is said that this idea embedded into the medium duty market that V8 wasnt made to last as long as an inline 6, contributed to the popularity of the 6BT powered Dodge compared to IH and GM V8 diesels...

Cummins started building these short stroke high rpm diesels in the UK too, but they didnt gain widespread acceptance untill they began building the L10, C8.3, B5.9 engines in the early 80s.
Krupp built those engines under license in Germany, which is why Krupp disappeared from the market: the Krupp 2 strokes ran 1 million km, yet the Cummins short stroke V8 was nothing but trouble. Krupp engineers solved the issues that plagued the Cummins designs too (worn cams and lifters) but it was too late for Krupp...

 

[BravoXray]

Anyways, i found that article about Cummins V8 while searching for the origins of the VT-903-660 in the Bradley AFV, which apparently is the predecessor of the VT8-460 found in the Israeli

A long time ago, I was at Weller Truck Parts in Grand Rapids, MI with a friend. He was looking to buy a Cummins VT8-430 to put in a Freightliner cabover, and Weller said they had several takeouts, and they were cheap. They actually had 10 or 12 of them in a pile, said he could have the whole pile for scrap price. The company that had bought trucks with them pulled them out and replaced them with NTC engines as they were maintenance and fuel hogs. HE didn't but one, but later he did buy a Mercedes V8 or V10 that he tried to get running for a couple of years, but never did.