Originally Posted by THE BULL

In one end the DE 35 did get better by the last iteration which was the HR

This idea already exists in a form of HR hybrids.

These utilize a VHR block paired with the double VTC 35 HR heads.

By going with higher lift cams you essentially obtain some characteristics of lift the rest is playing with duration and overlap electronically

Reason why VVEL did not come in other vehicles is because of trims and turbos.

Nissan/Infiniti moved to turbos and in many example of production vehicles you'll see a lack of variable lift. Boost helps compensate for the lift. What you end up seeing mostly is cam timing.

These HR hybrids do well however mostly on cams and ethanol.