Next-Gen Nissan Titan Equipped With New Turbodiesel Tech
When the next-gen Nissan Titan rolls up to the stage at next year’s Detroit Auto Show, the full-size truck will have a big oil-burner with enough sequential firepower to put all on Truck Mountain on notice.
Car & Driver reports the 5-liter Cummins turbodiesel V8 — expected to pump out 300 horsepower and 500 lb-ft. of torque — will come equipped with a sequential turbocharging system called the Holset M2 Two-Stage System with Rotary Turbine Control; Holset was an engineering firm in England that was purchased by Cummins in the 1970s, then renamed Cummins Turbo Technologies in 2006.
The system uses an electronically controlled rotary valve to direct exhaust flow to either one of the two turbos feeding power to the engine, shifting focus from the smaller to the larger of the turbos as airflow increases with engine speed and load.
As well as regulating boost pressure, the Rotary Turbine Control can be used as an exhaust brake when the accelerator is lifted. In turn, the increased temperatures resulting from the act help burn off more soot in the engine’s particulate filter.
I've owned 6.0 and 6.4 PSDs and know them ins!de out. They don't grenade unless they're abused, WOT from every stop and every hill. And or poorly maintained. Then forced to continue at the 1st signs of trouble. Same with blown head gaskets. None of this happens spontaneously, regardless of what drivers claim.
The 6.0 Was pre emission and only ran EGR. That one engine cost Ford over a BILLION dollars in repairs. As far as the 6.4, you don't scrap a good engine program due to a problematic emissions system. Every single one of the OEM's struggled in the first few years including MD and HD engine manufacturers but nobody Else scrapped their engine platform. They tweaked the emissions and went on their way. I understand Ford wanted to build in house to save money and to be able to control and streamline the entire process from engineering to manufacturing to parts stocking and warranty handling and repairs but the fact of the matter is if they had a solid engine platform that the public was receptive to like GM and Ram have found in the Isuzu and Cummins they never would have ditched the Navistar engine.
"A bit of white smoke means you shut it down and call for a tow, even though it still runs perfectly good." I'm assuming you do this, and that is pretty dangerous for yourself and your passengers and anybody on the road around you. I'll be darned if I'm going to stare at my tail pipe in the rear view mirror while I'm pulling my 14k pound trailer down the road. I check my fluids and tire pressure before I leave and I go. There's enough to worry about on the road without watching for the color of my exhaust to change.
Besides the smell, white smoke or black tells you something has gone wrong, but drivers push it anyways. They don't know, or don't care. What happens down the road is always catastrophic. You can't miss it. It's more pronounced when simply accelerating or pulling a grade, than at idle, but it's there too. You see the smoke in your mirrors. You'd have to be blind otherwise. Both the 6.0 and 6.4 can be awesome, reliable engines when deleting the emissions parts and tune, resulting in dramatically increased power and mpg. Never mind longevity. These were Navistar engines and it was time for Ford to cut all ties with Navistar, for obvious reasons.