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GOVERNMENT ENGINEERING COLLEGE
VALSAD
i-VTEC ENGINE TECHNOLOGY
NEED OF i-VTEC -:
• excellent fuel efficiency
• superb performance
• cleaner emissions
• driving comfort
i-VTEC-:
• i-VTEC is the acronym for intelligent VTEC (Variable Valve
Timing and Lift Electronic Control), an evolution of Honda's
VTEC engine.
• The i-VTEC engine works by controlling the timing and
lifting of the camshafts depending on engine speeds.
The General diagram of four stroke IC engine
The valves open smaller during
low engine speeds to achieve
maximum fuel efficiency.

The valves will open bigger at
higher engine speeds to achieve
higher performance.
•key advantages of i-VTEC -:
1.

Class-leading power and fuel efficiency.

2.

High performance and low fuel consumption in a single engine.

3.

i-VTEC regulates the opening of air-fuel intake valves and exhaust
valves in accordance with engine speeds.

4.

By regulating valve opening to match engine speed, the agile iVTEC engine adjusts its characteristics to realize both superior
power and low fuel consumption.
I vtec

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I vtec

  • 3. NEED OF i-VTEC -: • excellent fuel efficiency • superb performance • cleaner emissions • driving comfort i-VTEC-: • i-VTEC is the acronym for intelligent VTEC (Variable Valve Timing and Lift Electronic Control), an evolution of Honda's VTEC engine. • The i-VTEC engine works by controlling the timing and lifting of the camshafts depending on engine speeds.
  • 4. The General diagram of four stroke IC engine
  • 5. The valves open smaller during low engine speeds to achieve maximum fuel efficiency. The valves will open bigger at higher engine speeds to achieve higher performance.
  • 6. •key advantages of i-VTEC -: 1. Class-leading power and fuel efficiency. 2. High performance and low fuel consumption in a single engine. 3. i-VTEC regulates the opening of air-fuel intake valves and exhaust valves in accordance with engine speeds. 4. By regulating valve opening to match engine speed, the agile iVTEC engine adjusts its characteristics to realize both superior power and low fuel consumption.