Too true.

That little detail floated into my brain shortly after obsessing over
engine conversions...... -- ;^)

Neil.

--
Neil Nicholson. 1981 Air Cooled Westfalia -
"Jaco"  (Bustorius)

http://web.mac.com/tubaneil

Please send me your Vanagon/Westfalia links!
http://vanagonlinks.googlepages.com/home

On 8/20/07, Jake de Villiers <crescentbeachguitar@gmail.com> wrote:
> No valves!   :)
>
> On 8/19/07, Pensioner <al_knoll@pacbell.net> wrote:
> >
> > Lift and Duration are the two parameters of interest in cam design along
> > with the ramp geometry.
> >
> > Lift is how far the cam pushes the valve open.  Measured in inches.
> >
> > Duration is how long the cam keeps the valve open.  Measured in degrees.
> >
> > Overlap is the degree (Degrees/360) of total rotation where both the
> > intake
> > and the exhaust valves are open at the same time.
> >
> > The ramp geometry determines the acceleration of the valve and valve train
> > as it is pushed up by the cam lobe.  This attribute helps to determine the
> > rpm at which valve 'float' occurs.  When the valve cannot follow the
> > oscillation of the cam lobe it is said to 'float'
> >
> > Why don't 2 stroke engines have valve float? (NVC).
> >
> > Al (some cats are two stroke)
> >
>
>
>
> --
> Jake
> 1984 Vanagon GL
> 1986 Westy Weekender "Dixie"
> www.crescentbeachguitar.com
>