<< VO wrote:
 >
 > Paul,
 > Trigger point it is pretty complex multi-dimensional equation which
 > is dependent not only on signal from sensor only, but on manifold
 > pressure, temperature, RPM, load, etc.  My direct, almost 2year
 > research on this topic, showed there is dependency on humidity
 > and air viscosity as well.
 > So, simple delay buy detected signal from sensor it is not enough.
 > If need more details, drop me a note.
 > Vlad
 >

 I am always interested in more details. Send away.
  >>

Have you guys investigated the J&S knock sensor? No sense in reinventing the
wheel when other have done it successfully. Sophisticated unit has it's own
mic and processing circuitry and is used by Mazda racers. Retards the timing
upon incipient noise of detonation. Replaces the stock knock unit (or can
accompany it). I have one here installed on my 94 car and am testing it. It
also comes with a fuel air monitor display as well. It was easy to install on
the car.
Tracy might want to try and adapt his EC-2 unit to monitor this input
signal!!! (Or build a purpose unit almost the same for less $)

Marc Wiese 20B in something this way comes.....

He is in So Cal someplace but I went to the address I had for him but
wrong address. For aircraft I think I will try to anticipate the conditions
that cause knock and mitigate those conditions somehow before the fact.
Not use the knock sensor at all.

Paul Lamar
 
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