I'm going to show this in my auto tech class. Will hopefully settle the argument that cam phasing and VTEC are different. Do the new i-VTEC engines also use cam phasing?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CivicDXRaceCar &raquo;</TD></TR><TR><TD CLASS="quote">I learned how VTAK!1 works out of a Haynes manual. It's not that hard of a concept.</TD></TR></TABLE>

I actually thought the cam moved. Not sure how but I honestly thought it did.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 91DA9 &raquo;</TD></TR><TR><TD CLASS="quote">I'm going to show this in my auto tech class. Will hopefully settle the argument that cam phasing and VTEC are different. Do the new i-VTEC engines also use cam phasing?</TD></TR></TABLE>

Yes, the "i" in i-VTEC refers to "intellegent", or the fact that it can rotate the intake cam to achieve optimum power, emissions, fuel economy, etc. 3 lobe vtec like in the video changes both lift and duration of both valves, which by definition changes cam phase. There's like 5 different types of vtec...

 

 

Wow, you got V-Tec! Wish I had V-Tec on my all motor B20Z2!