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Old 06 Oct 2007, 05:18 pm
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Default what is Honda V- Tec?

What's special?
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Old 06 Oct 2007, 05:22 pm
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Variable valve Timing Electrontric Control, it doesnt do anything until high rpm the the computer takes over and allows the valves to operate at different times
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Old 06 Oct 2007, 05:24 pm
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The cam's, the cam's lock somehow at around 5800rpm and will give you more lift on the valves. or something like that
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Old 06 Oct 2007, 05:27 pm
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VTEC is an acronym for Variable valve Timing and Electronic lift Control. VTEC is a valve train system developed by Honda to improve the volumetric efficiency of a 4-stroke internal combustion engine. This system uses two camshaft profiles and electronically selects between the profiles.
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Old 06 Oct 2007, 05:30 pm
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Depends on the car, usually activated anywhere from 2,500 to 6,000 rpm, where the camshaft has a different timing lobe, and usually a lift lobe to hold the valve open longer, and allow more fuel and air to add more power. It a very ingenious invention since it is relatively easy to add to honda motors, and allows you to have power and economy in the same engine.
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Old 06 Oct 2007, 05:33 pm
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v-tec is quite confusing. the camshaft has 2-3 rocker arms and different lobes. v-tec kicks in at a different rpm on engines so lets say it kicks in at 3k rpm on our example and has 2 profiles. below 3k rpm, the low lift profile is goin at it then you step on it and rpm goes above 3k rpm. now the high lift profile opens up. the valve now opens more. how? the high lift rocker arm has a pin. it is activated by a solenoid valve that senses a change in oil pressure. this moves the pin and locks it with the low lift rocker arm. now both rocker arms are moving together at a high lift. sounds confusing, right?! IT IS! but thats pretty much how it works, i'm sorry i can explain it better. if you email me with a specific question, i can try to explain it better.
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Old 06 Oct 2007, 05:39 pm
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You will feel the different once the VTEC activate!!!!
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Old 06 Oct 2007, 05:42 pm
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V-Tech is also known as "Variable valve Timing and Electronic lift Control."VTEC is a valve train system developed by Honda to improve the volumetric efficiency of a 4-stroke internal combustion engine. This system uses two camshaft profiles and electronically selects between the profiles. This was the first system of its kind.Initially it was designed to increase the power output of an engine to 100 ps/liter or more while maintaining practicality for use in mass production vehicles. Some later variations of the system were designed solely to provide improvements in fuel efficiency, or increased power output as well as improved fuel efficiency.hope i helped
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