X-Mozilla-Keys:                                                                                 
Mark Steitle wrote:

I have a 20b running on a test stand.  I hooked up a vac. guage to the
oil injecors (oil pump disconnected) to see what kind of vaccum to
expect.  It varies, as you would expect, depending on the throttle
butterfly position and rpm.  Sorry, but I don't remember the actual
numbers.  Basically, it was what you would get when a vac. guage is
hooked up to the intake manifold on a V-8.  My conclusion was that there
is plenty of vaccum to pull in enough fuel to get you safely to the
nearest airport.

Also, I have developed a direct fire ignition that uses three separate
pickups, three GM ignition modules and three coils.  The three triggers
are installed inside the distributor, but could be located on the
eccentric shaft.  Works good (for test bench purposes), but no vaccum
advance is provided for and it is vulnerable to serious electrical
failure.  Maybe we could fire the trailing plugs off a crank triggered
magneto?

Mark
Austin, TX

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