Sentences with phrase «rpm cam lobe»

Not exact matches

Because of this, at low RPM, when VTEC is not engaged, one of the two intake valves is allowed to open only a very small amount due to the mild cam lobe, forcing most of the intake charge through the other open intake valve with the normal cam lobe.

In basic form, the single cam lobe and follower / rocker arm of a conventional engine is replaced with a locking multi-part rocker arm and two cam profiles: one optimized for low - RPM stability and fuel efficiency, and the other designed to maximize high - RPM power output.

At higher RPM, both intake valves run off the larger intake cam lobe, improving total air flow and top - end power.

Multi-valve engines tend to have smaller valves that have lower reciprocating mass, which can reduce wear on each cam lobe, and allow more power from higher RPM without the danger of valve bounce.

The cam lobe profile selected for engine speeds below 3000 rpm has a duration of 214 degrees and lifts the valves 5.5 mm.