X-Mozilla-Keys:                                                                                 
Ken Powell wrote:

     Remember that once 'knock' has initiated, timing or load must be
     reduced to a much lower point than what would be required to prevent
     the initial event from occurring.  We do have one variable that is
     controllable without a huge loss of power if we are running Tracy's
     EFI; we can enrichen the mixture manually.  If we have a means to
     identify the knock, we can retard the throttle (if possible depending
     on the situation) and enrichen the mixture to kill the knock.  The
     trick is to use the knock sensor to map the EFI and the boost (if
     turbo or supercharged) under safe test conditions to keep us from
     getting into a destructive knock in the first place.  Yes, I need
     Paul's circuit board so I will be able to test properly.  It would be
     a good idea to write up test criteria be sure that testing has been
     done at quantifiable temperature, manifold pressure, boost, etc.  This
     would take at least a year (testing thru most temperature variables)
     and none of us have a labratory to conduct these types of tests except
     the one that God provided for us.  What have I forgotten to consider?

     BTW, the Ford 1.9L is an American engine (actually, I think the
     original design work was done by Ford of Germany).  It has been build
     as a 1.3l. 1.6l, 1.9l, and is currently in production as a 2.0l.  I've
     never owned one and hope I don't have to.

     Ken Powell

The Aircraft Rotary Engine Newsletter.              Powered by Linux.

http://home.earthlink.net/~rotaryeng/            http://www.linux.org