Quote:
Originally Posted by Big Dave
It this not exactly how Toyota puts an Atkinson cycle engine in the Prius? Its a Yaris engine with a different cam and the hybrid motor masks the poor low-end torque of the engine.
Holding the intake valve open beyond TDC vents off pressure, effectively reducing the compression ratio making it possible for high ratio engines to run low octane fuel.
|
Honda does something similar with the R18 motor in the modern Civic, some info on it here:
Technical Overview of Honda's new R18 i-VTEC Implementation