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Toyota trademarked the NX2.0 engine not so long ago, but they are up to something much more interesting as well...

Ever hear of the Atkinson Cycle?

Lexus recently trademarked “NX 2.0T” for a two-liter turbo version of its upcoming Lexus compact crossover [but] Saga is not convinced that Toyota will emphasize turbocharging across many product lines.

Saga believes that “upsizing” the displacement of engines, and running them on the more efficient Atkinson cycle of fuel combustion — used in Toyota’s hybrid system — may deliver better power gains without sacrificing fuel economy.

While a larger displacement Atkinson cycle engine may offer less top-end horsepower than a traditional Otto internal combustion engine, its increased thermal efficiency allows for strong acceleration and better fuel economy, Saga said.


the real difference in an Atkinson stroke is it compleres all 4 strokes in one cycle of the crank vs the typical 2. Atkinsons will boost efficiency however power is down because of the lower compression ratio. Meaning we could see Toyota/Lexus buck the industry trend of downsizing and actually upsize displacement with the same efficiency gains...
 

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Lower power but higher displacement? I don't really get what the advantage is. Are we just going to get higher displacement engines with less power that are more fuel efficient? Better acceleration I guess. I'll be interested to see all the details and figures about the engine once it actually on the market.

Is it for sure going to be in the NX?
 

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Lower power but higher displacement? I don't really get what the advantage is. Are we just going to get higher displacement engines with less power that are more fuel efficient? Better acceleration I guess. I'll be interested to see all the details and figures about the engine once it actually on the market.

Is it for sure going to be in the NX?
Likely, but Toyota seems bent on integrating Atkinson throughout the lineup. So essentially an Atkinson 2.5L would make the same power as an Otto 2.0L except use less fuel than the 2.0....
 

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This is a good move for them. I believe this is also the same engine that will make it into the Lexus RC coupe.
It will be interesting to see how well the engine does in both vehicles.
 
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