Electronic valve control

[Corey & Alicia Beaverson]

     I have heard about the no starter thing........but any I.C. engine I have
ever worked with will leak down i.e. the cylinder pressure dissipates, especially
over time...

steve ravet wrote:

> Shannen Durphey wrote:
>
> >   I guess my earlier post never made it through.  One way to do this would
> > be to control the lifter bleed down rate.  If the cam had a high lift/long
> > duration lobe, then the bleed off could be held to a minimum during the
> > earliest part of the lift, and then dumped before the valve is open too long
> > to create early valve timing and lift.  As RPM increases, this could be
> > reversed.  If the lifter were made such that it had a minimum mechanical
> > lift then it would always open the valve no matter how much fluid pressure
> > there was within the lifter body.  In current engines, this could give a
> > rough form of valve control by using lifters with a fixed bleed down rate
> > and controlling the supply pressure.  Crude, but still better than fixed
> > lift and duration.
> >
> > Shannen
>
> That already exists, it's called a Rhoads lifter.  It collapses more at
> low RPM, which gives your lumpy cam a better idle.
>
> I know the electric valve topic has come up before and gotten some good
> discussion, esp from the Ford guy (Ed Hernandez??)  Haven't seen him
> post in a while, though.  One of the good ideas that came out of the
> discussion was eliminating the starter:  Computer locates a couple of
> pistons that are near the top of the power stroke.  Open the intake,
> squirt in some fuel, close the intake, apply a spark, voila the engine
> is started.
>
> --steve
>
> --
> Steve Ravet
> International Meta Systems
> http://www.imes.com
> steve at imes.com