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Honda heightens your driving enjoyment with a rare combination of spirited engine response and exceptional fuel efficiency. This ideal balance is achieved by Honda's next-generation 1.8-liter SOHC i-VTEC engine - the first entirely new Civic power plant in 17 years. Through Honda's advanced i-VTEC (Intelligent Variable Valve Timing and Lift Electronic Control) system and DBW (Drive By Wire) technology, it performs like two types of engines in one compact unit. At high engine loads, such as when starting from a standstill or stepping on the accelerator, DBW fully opens the throttle while VTEC optimizes intake valve timing to generate 2.0-liter-equivalent power. At low engine loads, such as during high-speed cruising, DBW narrows the throttle opening while VTEC delays valve closing to achieve 1.5-liter-equivalent fuel efficiency. Settings are intelligently switched in a seamless manner to ensure smooth, linear response at all revolutions
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High-output mode rocker arm and fuel economy mode rocker arm are not inter-connected. Valves operated according to high-output cam profile.
High-output mode rocker arm and fuel economy mode rocker arm connected via the synchro piston Valves operated according to fuel economy cam profile with delayed valve closing. |
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