Interestingly, one item needing less oiling are the VCT phasers on the camshafts. Thanks to the cam torque actuation strategy, the phasers do not require high-pressure oil from the pump, but are instead fed bleed oil from the front cam bearing. Had CTA not been used, the oil pump would have needed enlargement to keep a relatively large volume of pressurized oil ready to go next to the phasers in the cylinder heads. And that would have cost horsepower.
http://www.mustang50magazine.com/tec...te_oiling.html

Camshaft movement in traditional TiVCT systems is accomplished by porting pressurized oil into the cam phasers attached to the drive end of each camshaft. These have two each advance and retard chambers to physically move the cams. Pressurized oil is routed into the chambers by a shuttle valve and solenoid actuator under computer control.

The Coyote's TiVCT benefits from cam torque actuation. Instead of high-pressure oil energizing the cam phasers, CTA uses the valvespring energy torquing through the camshafts. At certain periods of cam rotation, valvespring pressure tries to advance the cams, and retard them at other points. This snappy back and forth energy is traditionally dissipated uselessly into the timing chains, but with CTA it's used to power the cam phasers. Engine oil is still used to fill the cam phaser chambers and thus hold the new cam position, but not physically advance or retard the cam-that work is done strictly by cam torque from the valvesprings. As such, there is no hardware in CTA. It is only a strategy.

In fact, in exchange for some crafty thinking and hard-won computer software, there are less hardware and cylinder-head-design headaches with CTA. The control mechanism for shuttling oil in and out of the phasers is a simple solenoid because the three-way shuttle valve is not required. High-pressure oil is also not needed, so the engine's oil pump can be downsized and horsepower saved. Nor are dedicated oil passages to the phasers required. Instead, the Coyote's TiVCT with CTA system siphons off bleed oil from the nearest cam journal.


[Looking much like the Three-Valve part, the Coyote gerotor-style oil pump was enlarged by lengthening it 6 mm to provide adequate oil flow and pressure at the Coyote's high rpm, and with the small loss posed by the piston squirters.]