Variable cam timing again

[Daniel Ridge]

Hi everyone!

> to control overlap, etc.  I don't see how you could get that kind of 
> control while using a cam shaft.

I don't expect that you can have this kind of control with a camshaft. 
I have a Lampredi designed 4cyl SOHC in my '77 Fiat. The cam is in a 
seperate casting above the head and acts directly on the tappets. I have 
oft wondered whether the cam might be replaced altogether with 8 
computer driven hydraulic solenoids. Arbitrary valve timing schedules 
would become available.

______________________________________________________________________
   Daniel Ridge                      |   USRA  CESDIS                   
   Technical Specialist              |   Code 930.5
   email: newt at cesdis.gsfc.nasa.gov  |   Nimbus Rd., Bldg. 28, Rm. W274
   tel:   301-286-4403               |   Goddard Space Flight Center
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