Electronic valve control

[Dave Williams]

-> 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

 That's how the Siemens setup works.  It came out several years ago, was
advertised in the trade journals, but either nobody was interested or
production lead times are so long they haven't shown up yet.

 The nifty thing about the Siemens setup is it uses what are basically
modified electric fuel injectors as the lifters.  The technology is all
quite simple and easy to produce.  As an added fillip, it looks quite
easy to retrofit to older engines.

==dave.williams at chaos.lrk.ar.us===http://home1.gte.net/42/index.htm==
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