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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.
2006 1.8 L R18A2 (Honda Civic) i-VTEC (EDM) 2006 2.0 L R20A1 (Honda Stream) i-VTEC; 2013 2.0 L R20A1 i-VTEC; i-VTEC. K-series. 01–11 K20A Integra TYPE-R; Civic TYPE-R; Accord Euro R (Japan) 02–04 K20A2 RSX Type S (America) 01+ K20A3 Integra IS (Japan) 01–06 K20A3 RSX Base, Civic Si (America) 03+ K20B 2.0l VTEC-i, Stream 4WD (Japan)
Honda: 2.4 L: Inline-four engine: Earth Dreams DOHC i-VTEC gasoline direct injection: Honda Accord Sport: Honda: 3.5 L: V6 engine: Earth Dreams SOHC VTEC: Honda Accord V6: Subaru (Fuji Heavy Industries) 2.0 L: Boxer-four engine: FA20D DOHC AVCS D4-S direct and port injection: Subaru BRZ: 2012 [13] Audi (Volkswagen Group) 3.0 L: V6 engine: V6 ...
The Honda R engine is an inline-four engine launched in 2006 for the Honda Civic (non-Si). It is fuel injected , has an aluminum-alloy cylinder block and cylinder head , is a SOHC 16-valve design (four valves per cylinder) and utilizes Honda's i-VTEC system.
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 ...
Three-stage VTEC is a multi-stage implementation of Honda's VTEC and VTEC-E (colloquially known as dual VTEC) technology, implemented in some of the company's D series engines from 1995 to the present day, allowing the engine to achieve both fuel efficiency and power. VTEC-E (for "Efficiency") is a form of VTEC that closes off one intake valve ...
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 ...
Early variable valve timing systems used discrete (stepped) adjustment. For example, one timing would be used below 3500 rpm and another used above 3500 rpm. More advanced variable valve timing systems offer continuous (infinite) adjustment of the valve timing. Therefore, the timing can be optimized to suit all engine speeds and conditions. [2] [3]