eDIST, or ignition the final answer

Bruce nacelp at bright.net
Mon Dec 24 02:11:08 GMT 2001



  In case you haven't heard FAST has a neat little deal called eDIST that
allows you to run the Coil Near Plug set up found on LS1 cars on other
applications.  In case you haven't been under the hood of a LS1, they have
one ignition coil pwer cylinder.
  The one little gotcha in interfacing it is that to be sure you have a full
time EST signal.  On GM ecms they may not be a full time EST signal from the
ECM.  ie on the GNs it looks like there is a 250 rpm min threshold for the
timing calculation.   What I did was use a 1K pull up resistor, and then the
coil triggers tied together as *point* signal, that inverted the signal, but
the eDIST has a selector switch for correcting that.
  I just got mine running on my GN yesterday, so testing for the moment is
scetchy.  But, there does seem to be a noticable change in the way the car
runs.
  If one ign coil is good,  3 must be better,  and 6 is just enough <g>
More notes as things progress
  I can say the idle seems cleaner, my normal cruise TPS, is about .84v at
65, with the eDIST it's now at .8, thou the average might be closer to .78..
I doubt anyone has a lower throttle opening then I do for cruise, and to
improve on it would take some doing, and, installing the eDIST did.   I
passed some cars in a 55 zone during the first test drive, and well, I was
caught off guard with the way it responded.
   If you want to test a coil out by it's self just get one, and test fire
it.  But, be warned, it's high voltage, and stand well clear of it.  The CNP
stuff is impressive, deep dark blue spark.
   Bruce
        Now where is that new manifold <GGGG>.
        Yes, Dr., I'll be OK, you see the GN is running well.  Oh a GN is a
Buick with a Turbooo, ugh, yes, I understand....

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