> > Yes, accelerate insofar as highway RPM engine pumping losses are a
> > deceleration.
>
> It isn't at all. So that would be insofar as not at all.
>
> --
> Wayne Dobson
> AKA "Dobbie The House Elf"
What? The engine's combustion cycle involves decelerations during 3
of the strokes, you fucking moron. Under zero throttle, the
mechanical valvetrain is still operating. This is how engine braking
WORKS, you freakin idiot. The engine is a glorified air pump.
Do you even drive a car? The work involved in compressing the air, as
well as drawing it in and moving it out constitute decelerations.
With no power stroke under zero throttle, the engine is a BRAKE, IOW,
a deceleration. Any idiot can shift his car into neutral and figure
this out immediately.
I suppose you haven't figured out why the signs say "steep grade,
trucks use low gears"?
Trav
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