This eliminates pumping loss (where the cylinders are sucking against a closed intake manifold) and gives finer control over the mixture. Vtec is a variable valve lift (how far the valve opens). VVT is variable valve timing (how soon/late the valve starts opening in relation to the crank position). i-Vtec has both. Teknologi VVT-i ini kemudian dikembangkan dan disempurnakan oleh para insinyur Toyota menjadi Dual VVT-i. Secara global teknologi ini pertama kali dipakai pada tahun 1998 di mesin berkode 3S-GE untuk mobil Toyota Altezza. Di Indonesia, Toyota Corolla Altis yang diluncurkan pada tahun 2010 menjadi mobil pertama yang memakai teknologi mesin Dual The 1.5-liter Dual VVT-i engine is rated at 106hp and 140Nm, while the 1.3-liter Dual VVT-i motor produces 98hp and 123Nm. By comparison, the previous NZ-FE engines had the following output: 107hp and 142Nm for the 1.5-liter, and 85hp and 122Nm for the 1.3-liter. The Valvematic is a development of the Dual VVTi engine, and incorporates Toyota's Optimal Drive enhancements - which improve efficiency, reduce emissions, etc. The Valvematic is slightly more powerful - 132bhp compared to 124bhp - and will also have a six speed manual gearbox as opposed to the previous five speed. Quote. The major portion of the change chunk lies under the hood. Seems like Toyota has devoted its entire workforce to build a better performing and efficient Vios. Talking specifically about the Thai market, it will now be getting a new 1.5L Dual VVT-i mill, code named 2NR-FE. The said mill will be replacing the older 1.5L (1NZ-FE) E85 running engine. New 2016 Toyota Vios launched in Malaysia - EEV, Dual VVT-i, CVT, VSC standard, RM76,500 - RM96,400. Posted in Cars, Local Car Launches, Local News, Toyota / By Danny Tan / October 4 2016 10:46 am qjviaz3.

single vvti vs dual vvti