I am one of those who found EFI intimidating but I
always thought I
would deal with it when the time came.  However,
there is almost a
continuous thread of problems faced by other
builders trying to get
reliable performance  out of the the electronic
ignition and EFI
which of course I have been reading for years.  I
can't exaggerate
the relief I felt the when I decided to go to crank
fired ignition
and a carb.  It was a matter of accepting my own
limitations.   Jerry


Furthermore one is expected to solder 37  tiny wires
on this
connector. I would say 80% of the people on here
don't have the eye sight,
skill and manual dexterity required  to do this let
alone the electronic knowledge
to trouble shoot such a system.


I suggested years ago a simple printed circuit board
adapter and screw
type connectors but the idea was rejected out of
hand.
--
Paul Lamar ...No rotor no motor.

NO, NO NO! Soldering is out as far as the connectors
for the computers goes- you will not get the
consistant results that you need for reliable wiring.
I was lucky enough to have Richard Martin show me the
sub-D crimp style connectors. The crimpers make
absolutely consistant connections with the pins, which
you then insert into the connector body. If you put a
pin in the wrong hole, you can take the removal tool,
remove it and then put it in the right place. I would
not have tried to do my wiring with the solder type
pins. The connectors and gold plated pins, both female
and male are available from one electronics store here
in Seattle, but I am sure they are widely available.
As far as the crimping tool goes, I think it costs
about ~$100, but I got mine at Boeing Surplus for
about $10, and then had to turn a die on a metal lathe
for the size pins I was crimping. Crimping is the only
way to go on the computer wiring.

Brian Trubee


IIRC, Bob Knuckols (sp?) of the AeroElectric connections agrees with the
crimp over solder for the average guy/gal to use.  He states, again, IIRC,
that they are both equivalent as to electrical connectivity, however, the
crimp is more uniformly made for the average guy.  FWIW.

Chris


Guys....
You only have to look at aero standards. Crimp connectors are used for
commercial aircraft and all spacecraft. The electrical conductivity is not
the issue. A soldered connector can have the solder flow up the wires
internal to the insulation. The wire subjected to vibration will break right
where the solder stopped flowing. That is why we should only use crimp
connectors.
Larry

Larry,


Exactly.  The same reason we use crimp connections to all of our industrial
equipment. Using the proper wire standard is also a must in vibrational
prone applications.  All copper wire of the same diameter are not created
equally.

Doug F.


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