| 21. | Some versions have variable valve timing ( VVT ).
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| 22. | It is an all-aluminum design which, while still a pushrod engine, boasts variable valve timing.
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| 23. | Compared to the American version, both Active Fuel Management and variable valve timing were removed.
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| 24. | The engine also features Nissan's VVEL valve timing technology.
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| 25. | Valve timing and the valve profile are continuously altered according to conditions and engine load.
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| 26. | Honda accomplished these improvements primarily through the use of " intelligent " variable valve timing.
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| 27. | VTEC, by the way, stands for " variable valve timing and lift electronic control ."
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| 28. | Variable valve timing ( VVT ) was also introduced.
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| 29. | Holden introduced the new " Displacement on Demand and variable valve timing have been removed.
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| 30. | For 2000, the engine gained variable valve timing for five extra horsepower ( to 125 ).
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