VTEC allows for differing cam profiles, meaning different valve lift and duration, depending on the engine RPM. This video will dissect a Honda Civic Type R engine to show the ins and outs of how VTEC ...
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How VTEC works - Honda horsepower!

What is VTEC? How does VTEC work? VTEC, or variable valve timing and lift electronic control is used to increase airflow within an engine cylinder at high rpm. Many companies have versions of their ...