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In the STREAM page on the official Honda of Japan's web-site, one sub-page was specifically dedicated to the implementation
of the new i-VTEC mechanism on its K20A. There is a wealth of information contained on that sub-page so as usual, TOVA's japanese
articles specialist Kaz Mori did a translation of that to english. After looking at the translation, I decided that the article
was much too fragmented to be published just by itself. I decided that the most effective way to present the translation is
to incorporate it into a K20A article of my own, written in such a way so that the whole will present a coherent and technically
informative article that you are reading here.
As I have mentioned at the beginning, do not judge the K20A by its
mere 154ps power rating. What is important is not its specific power output but the sheer amount of technologies that Honda
has put into it. It is truly a new generation VTEC engine - the DOHC iVTEC. As can be expected, a lot of wonderful current
technologies have been carried over to the K20A, frequently enhanced in a way that makes the K20A overall a wonder-engine
in its own way.
| Vtec engine with hybrid supercharged.. |
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The K20A : Honda's first DOHC iVTEC Engine
The K20A used in the new Honda STREAM is the first of the new generation i-VTEC engines.
Eventhough the engine does not produce a humongous amount of power in absolute terms, the importance of the engine is that
it tells us of the new technologies that Honda is working on, and directly indicates the technologies that will be used on
the new generation i-VTEC super high-performance engines that is to come.
In the STREAM page on the official Honda
of Japan's web-site, one sub-page was specifically dedicated to the implementation of the new i-VTEC mechanism on its K20A.
There is a wealth of information contained on that sub-page so as usual, TOVA's japanese articles specialist Kaz Mori did
a translation of that to english. After looking at the translation, I decided that the article was much too fragmented to
be published just by itself. I decided that the most effective way to present the translation is to incorporate it into a
K20A article of my own, written in such a way so that the whole will present a coherent and technically informative article
that you are reading here.
As I have mentioned at the beginning, do not judge the K20A by its mere 154ps power rating.
What is important is not its specific power output but the sheer amount of technologies that Honda has put into it. It is
truly a new generation VTEC engine - the DOHC iVTEC. As can be expected, a lot of wonderful current technologies have been
carried over to the K20A, frequently enhanced in a way that makes the K20A overall a wonder-engine in its own way.
| Vtec cam profile diagram |
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