VTEC Tech. Honda also uses VTEC systems on the Acura NSX sports coupe, Integra GS-R, Prelude, del Sol, Accord and Civic automobiles. How VTEC Works. At engine speeds below 7000 rpm, the Interceptor's camshafts open only one intake and one exhaust valve per cylinder. Above 7000 rpm, cams open both intake valves and both exhaust valves for each

Such engines are set to a single cam profile, whereby what works for a high RPM doesn’t work for a low one. Enter the VTEC Engine. VTEC works by modifying your engine’s cam profile and ensures transitions from high to low RPM (and vice versa) are smooth and indetectable. The camshafts are vital in this process as they control the valves.
VTEC Engine and the 4-stroke engine. There are four strokes in a 4-stroke engine. These are intake, compression, power, and exhaust. The piston works downwards in the intake stroke, and the air gets into the cylinder compartment of the engine. In the compression stroke, the piston works upwards and compresses the mixture of air in the cylinder.
How it works. 3. Turbocharger with electronic wastegate. ‘Turbo lags’ are a typical outcome of conventional turbo engines. Accelerations tend to lag upon accelerating, as exhaust energy must rise to spin the turbines which then increase intake amount. This problem is rectified with the VTEC TURBO – using a turbocharger with electronic Honda vehicles use a variable valve timing system known as VTEC, which stands for Variable Valve Timing with Electronic Control. Briefly, since this system uses pressurized engine oil to activate the valve timing system, the PCM (Powertrain Control Module) uses a control solenoid to control the flow of oil to the VTEC system.

1880 posts · Joined 2007. #8 · Aug 6, 2008. gsrfrostyco on Aug/06/08 said: umm it sounds like ur beating on your motor pretty bad tooif ur cracking vtec in 5th gear i can only imagine what your doing with your low gears lol its common to burn a little oil in vtec engines but when you notice that 3 or 4 quarts happened to vanish into

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    • how does a vtec engine work