Quote:
Originally Posted by cRiPpLe_rOoStEr
The only advantage that I can see in that Atkinson effect applied through a longer intake valve timing is that the mixture that goes back to the intake manifold decreases further the temperature of the subsequent intake charge.
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If the charge has entered the cylinder and has also been squeezed somewhat, then Boyle's law and common sense would expect the charge temperature to be higher, even allowing for the latent heat of evaporation of the fuel.
Simon