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A Honda K24A Engine with i-VTEC. VTEC (described as Variable Valve Timing & Lift Electronic Control, but stands for Valve Timing Electronically Controlled) is a system developed by Honda to improve the volumetric efficiency of a four-stroke internal combustion engine, resulting in higher performance at high RPM, and lower fuel consumption at low RPM.
Variable Cylinder Management (VCM) is Honda's term for its variable displacement technology, which saves fuel by using the i-VTEC system to disable one bank of cylinders during specific driving conditions—for example, highway driving. The second version of VCM (VCM-2) took this a step further, allowing the engine to go from 6 cylinders, down ...
Cutaway view of Variable Valve Timing with intelligence on a ZR engine in Techniquest Glyndŵr. VVT-i, or Variable Valve Timing with intelligence, is an automobile variable valve timing petrol engine technology manufactured by Toyota Group and used by brands Groupe PSA (Peugeot and Citroen), Toyota, Lexus, Scion, Daihatsu, Subaru, Aston Martin, Pontiac and Lotus Cars.
Honda wasn't the first or last to do variable valve timing and lift, but no one did it with such style.
In 2006 Honda created the J30A5 to mark the 30th anniversary of the Accord. It boosted output to 244 hp (182 kW) ( SAE Net 08/04) and 211 lb⋅ft (286 N⋅m) (SAE Net 08/04) of torque. According to Honda, horsepower gains were achieved with improvements to the airflow of the intake and exhaust system.
In 1989, Honda released the VTEC system. [13] While the earlier Nissan NVCS alters the phasing of the camshaft, VTEC switches to a separate cam profile at high engine speeds to improve peak power. The first VTEC engine Honda produced was the B16A which was installed in the Integra, CRX, and Civic hatchback available in Japan and Europe ...
In Honda's 2006 Civic Hybrid, the 1.3-liter i-VTEC engine uses a 3-stage valve design, an advancement from the 2005 i-VTEC technology. Aside from weight and friction reduction, the engine operates on either low-speed timing, high-output timing or 4-cylinder idling when the VCM system is engaged, each yielding better engine output upon varying ...
Honda K45 CBR150R: 2014–Present 17 hp @ 10.5000 rpm Honda CBR150R Lokal Indonesia Honda K56: 2015–Present 15.5 hp @ 9000 rpm Honda New Sonic 150R; All New Supra X 150 GTR; Winner 150R Honda GL150: 2013–Present Four-stroke, SOHC 2-valve, Single-Cylinder, Air-cooled. 149.16 9.5 :1 57.30 x 57.80 ECU PGM-Fi 5-Speed Manual clutch, wet 11.5 hp