The fact that there is now an SUV in the BMW M line-up opens a door to a whole lot of new possibilities, including the potential of a high performance M diesel SUV or a high performance diesel version of the X5/X6 that’s as powerful as M cars but without the badge, if they want to keep that last remaining bits of exclusivity.
After all, even though the Cayenne Diesel has specs that are abit of a bore, the most powerful Audi Q7 is the Audi Q7 V12 TDI.
The latest rumours to hit the web is the development of a tri-turbo diesel for this high performance diesel BMW X5 which could produce 354 horsepower and nearly 800Nm of torque. BMW’s star diesel powerplant right now is the all-aluminium N57B30 which makes 245 PS and 540Nm of torque.
Its most powerful diesel is a V8 from the E65/E66 745d, making 329 hp and 750Nm of torque. The tri-turbo diesel could slot above the 730d as an upmarket diesel model in the new F01/F02 7-Series. But all of these figures are still short of the Q7 V12’s 500 PS and collosal 1000Nm.
Tri-turbo engines are not new, though I’m not sure if any made it to production there are companies who have showcased concept engines. One of the more recent examples that also so happens to be a diesel is the concept Mercedes-Benz SLK320 CDI Tri-Turbo which had a V6 diesel engine with 2 small turbos that connected to 1 large turbo. It made 286hp and 628Nm of torque. It never went into production because engineers said it was too expensive.
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Better late then never….
Turbodiesels for the win!
…diesels have really come a long way since the days when they were notoriously clattery and sluggish…
Nah… too expensive, too complicated and utterly pointless. twin turbo would do just fine if not better. Why do you need small turbo in a diesel when you have VTG? If it's a tri-turbo petrol engine I get, but not diesel.
Since the fuel price fall down the floor, all these crazy SUVs starts to roll off. Remember Obama said this is the time we change, not to get back to oil addiction again. And now this? Tri-Turbo? all these power figures not some numbers we never seen before. Whats the aim of this car?? Computer have dual core and quad-core for faster speed. does this make the world's most efficient car? or simply just a piece of art
Javanese,
It's Variable Geometry Turbine, VGT, as in Ford Ranger, or Volvo D5. I think must be some disadvantages, as Volvo already apply this tech almost a decade, and yet not many manufacturers follow suit. Maybe it's cheaper to built than multi turbo/turbine, but not that effective.
Three turbos?? make it 5 can beat Veyron's turbo layout.
[quote comment="228850"]Three turbos?? make it 5 can beat Veyron's turbo layout.[/quote]
Haha then we'll watch in awe as the world goes into turbo madness!
how does 3 turbos work?
the air that passes through the large turbo goes into the 2 smaller turbos and spools it up?
could be either 2 cylinders to 1 turbo each, or a sequential setup like the concept merc which you can read here:
http://paultan.org/archives/2005/08/02/mercedes-b…
[quote comment="228819"]Javanese,
It's Variable Geometry Turbine, VGT, as in Ford Ranger, or Volvo D5. I think must be some disadvantages, as Volvo already apply this tech almost a decade, and yet not many manufacturers follow suit. Maybe it's cheaper to built than multi turbo/turbine, but not that effective.[/quote]
Ford or Volvo ? They are using discharged Audi Technology from the 1980s (Audi Quattro). The 5 cylinder Volvo engine was purchased from Audi when Audi didn't had any use for it any more. When Ford bought Volvo, they found that the engine is so advanced, that they use it now in Ford cars too…
Actually, ALL VW/Audi TDI are using "Variable Geometry Turbine" since about 1990…