Does anyone know what TiVCT (twin independent variable camshaft timing) is and does? Here's a video:
https://www.youtube.com/watch?v=glUXDMuQ3Bs
https://www.youtube.com/watch?v=mqybhNj0l6I
Most of Fords engines became TiVCT since 2010. Before, some vehicles only have DOHC (Dual over head camshafts) but they weren't variable so they had to set the camshafts somewhere between performance and efficiency. It'd be stupid not to have twin independent variable cams because then you would have only a set time when valves open and close, and you no longer adjust for either efficiency or power.
The reason the 3.5L engine that was put in the Explorer is nearly as powerful as the 4th gen's V8 is due to TiVCT. Allowing the valves to adjust allowed the Explorer to be fuel efficient and then change its timing and valves to max performance. Without it, you'd be at power levels similar to the old cologne 4.0L that yes, had more liters, but had to have camshafts that dictated opening and closing of the valves that was a compromise between efficiency and power.
The 3.5L Ecoboost has always had 4 camshafts, two on each bank. One on each bank is for exhaust valves, the other one is for intake valves, which is still TiVCT because you can only have two camshafts per bank.
4 cylinders due to being inline will only have two camshafts, still TiVCT because it's about the cams for intake and exhaust.
To finally prove my point that all the Ecoboosts have TiVCT, look at this 3.5L Ecoboost with the broken cams.
Phasers that adjusts the cams to make it TiVCT:
https://youtu.be/LKY8UQ4z3Mo?t=99
By the way, the aluminum bodied F-150 2015/2016 still use the 1st gen 3.5L Ecoboost so you can clearly see since this has TiVCT, the previous engines would have to have had TiVCT as well.
