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Normally, the term “torque reserve” brings up visions of the Dodge Demon’s 808-horsepower, drag-race-focused powertrain and its various tricks. But torque reserve can also be used to make ordinary cars, using two-stage valve lift (normal and high performance), smoother.
The reason for having a low-valve-lift mode is to increase efficiency, by reducing pumping losses. The high-lift mode increases the valves’ ability to move a lot of air quickly,
Read the full story: Smoothing engines with torque reserves »
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The reason for having a low-valve-lift mode is to increase efficiency, by reducing pumping losses. The high-lift mode increases the valves’ ability to move a lot of air quickly,
Read the full story: Smoothing engines with torque reserves »
More...