How Do A VTEC Engine Works

VTEC Engine is one of the most sought after advancements in the contemporary automotive scene. The cutting edge engine feature has been introduced by esteemed automobile giant Honda Motor Company. The post below is a short brief on the functioning aspects of VTEC engine.

Before proceeding with the VTEC engine, you must know a bit about engine camshafts. Camshafts are vital for running engines at correct speeds and ranges. Cars equipped with lower rpm camshaft would function best while their engines are running at lower rotational rate. Gain, some of the cars have camshafts designed to close & open valves in swift succession while running at higher rpm.  A vehicle needs a completely different camshaft portfolio to perform effectively at both low and high speeds.


However, Honda has already figured out the way for a car engine to stay armed with multi camshafts so that the engine can switch these out effectively when needed. The system has been introduced as VTEC- Variable Valve Timing & Lift Electronic Control. VTEC involves a simple concept. Its mission is to permit the engine to function with optimum efficiency all through the whole RPM range, sans any sort of weakness at any definite range or spot.

VTEC camshaft comprises of one larger lobe centered in between 2 main smaller lobes. The very point when VTEC lobes start to function on engine, is usually termed as “the VTEC crossover”. As VTEC kicks in, one little hydraulic pin would be forced through 3 separate lobes, making one big lobe engineered to run with incredible efficiency at higher RPM. Generally, crossover point for a stock vehicle is nearly 5,000-5,500 RPM.

The VTEC engine switches in between fuel-save operating mode & performance-operating mode. Its accomplished by running a lower speed valve-timing & little cam portfolio at lower engine speeds facilitating enhanced fuel consumption & leaner fuel-burning. If the engine requires more power, the VTEC system achieves higher output by pacing up valve timing & switching to bigger camshaft profile that permits further & longer timing for valve opening.