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Advanced VTEC
Advanced VTEC is a system designed to allow the variation of valve timing and lift. It is designed to improve engine Fuel efficiency without sacrificing performance. It is an evolution of a long line of VTEC systems from Honda.
== Differences from other VTECs ==
Honda's advanced VTEC technology departs greatly from its previous incarnations by no longer relying on switching between two sets of lobes on a given camshaft. It instead uses a single cam lobe per valve, and two rocker arms per valve whereby the second rocker arm has a movable pivot point, there by provide the varying cam lift. Advanced VTEC motors still use the now standard oil pressure controlled variable cam gear angle mechanism. With these two technologies combined Honda has developed an infinitely variable valve timing and lift system ("VVTL"). Previous versions of VTEC included only staged VVTL i.e. High-Low. With the introduction of i-VTEC the systems gained infinitely variable valve timing but still only staged lift i.e. High-Low. The "infinitely variable" portion of the A-VTEC is what makes it stand out as a serious evolutionary step in the world of VTEC.〔http://www.vtec.net/news/news-item?news_item_id=659664〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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