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Old 11-09-2018, 04:25 PM   #1 (permalink)
Daox
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Location: Germantown, WI
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CM400E - '81 Honda CM400E
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Toyota 2.0L M20A-KFS dynamic force engine

This engine seems pretty packed with new technology. Pretty interesting stuff IMO.

2.0-liter Dynamic Force Engine, a New 2.0-liter Direct-injection, Inline 4-cylinder Gasoline Engine

Quote:
...the newly developed 2.0-liter gasoline vehicle and hybrid vehicle engines achieve world-leading thermal efficiencies of 40 percent and 41 percent respectively...

Not too shabby! What nifty techniques did they use? Lets see:


Quote:


Very neato Toyota! Lets hear more:

Quote:
Details of new technologies

Piston with Laser Pit SkirtWorld's first
By subjecting the skirt sliding surface to mirror finishing, reduced friction is realized. On the skirt surface, narrow crosshatch grooves created by lasers improve scuff resistance.





Performance

Cylinder head (for conventional engine vehicles and HVs)
Adopting a laser clad valve seat for the intake valve seat to make the intake port compatible with strong tumble flow (fuel consumption performance) and intake flow rate (output performance).





Fuel Consumption





Common architecture of combustion



Wooo, that BSFC map looks nice!



Here is a video explaining some of the technology too.


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