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ChemE

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    How does VTEC Work?

    in Engine Tuning, Upgrades and Swaps

    Posted

    On the topic of VTEC, anyone know what's up with the new "i-VTEC" on the new Si? It seems like a fad to name things i-whatever nowadays, but I hope there's more to it than that...

     

    Under low load conditions, only one intake valve opens up. This creates a swirling effect that helps achieve more complete combustion. This basically just helps with the fuel economy.

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