VVT-iE (Variable Valve Timing - intelligent. by Electric motor) is a version of Dual VVT-. i that uses an electrically operated. actuator to adjust and maintain intake. camshaft timing. [2] The exhaust camshaft. ftiming is still controlled using a hydraulic. actuator. This form of variable valve timing.
Junior Member. Join Date: Sep 2010. Posts: 6. Replace '04 1GRFE with Dual VVT 1GRFE. My 2004 1GRFE engine is a goner and am either trying to find the best place to buy a remanufactured one or the cost of putting in the new 1GRFE with Dual VVT since I am going to have if forever hopefully. What has to be updated for the Dual VVT engine to work Are there any real advantages to using dual vvti vs single vvti? I would think that dual vvti would be capable of more cam overlap at higher rpms. Any chance this would be worthwhile, or would it be better to simply stick with the single vvti head. FJ / 4 runners have the dual vvti 1GR .. tacos still have the old single vvti 1GR. pretty much identical though. the dual vvti with a super would be a beast as the dual vvti is already 30+ hp ahead of the single. nd4spdbh, Feb 24, 2014 #14. Dual VVTi adalah teknologi yang memungkinkan buka tutup katup otomatis tepatnya di bagian katup intake dan exhaust valve. Inilah yang menjadi perbedaan VVTi dan Dual VVTi. Pada tipe VVTi, hanya katup intake saja yang dilengkapi dengan fitur pengatur waktu buka tutup. .