Quote:
Originally Posted by brucepick
Where is the RPM increase? I open the throttle to maintain vehicle speed. Speed maintained means RPMs are maintained. Transmission is a conventional 5-speed, not variable ratio. We have confirmation of a more open throttle, which does not necessarily mean more fuel if lean burn is in use. It just means more air.
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Speed maintained, does not mean RPMs are maintained. I'll explain it with a ridiculous example. Say during lean-burn (less fuel is injected), power at cruise RPM (say 10Kw) is halved, to maintain speed, you must correct RPM such that power is bumped back up to 10Kw. Now that RPM increase may not be so pronounced due to the improvement in efficiency with more throttle, but it will be there.
RPM may even decrease under IamIan example, but I doubt that would be the case unless designed to do so.