I am just getting around to wiring Tracy EFI/IGN computer
and I had an idea. Tracy uses a 37 pin D sub min male connector
that is rather hard to attach tiny wires to unless you are real good with
a tiny soldering iron or you have a special crimping tool.
This is a job I was not looking forward too as my eyesight
and hand coordination is not what it was when I was younger.

I was driving home from the hangar tonight and had an idea.
I have a whole bunch of these terminal strips left
over from another project and I had the idea of making a small
printed circuit board that would adapt a male 37 pin D sub min
printed circuit board connector to these easy to use terminal strips.
Merely strip the wire, insert it in the hole and tighten the screw.

I am laying out the PC board and will order a bunch of mating male
37 pin D sub min connectors to solder to the printed circuit adapter
board. If anybody wants such an adapter let me
know. Cost should be around $20 or $30.

Paul Lamar

After reviewing the installation instructions on the EC2 it looks
like it might be better to have 15 pin D sub min on the printed circuit
board as well to connect to Tracy Programming & Control Module. PCM for short.
15 fewer terminal blocks would then be required.

Pins 5,6,10,14,15,16,24,25,26 and 32 all go to the PCM. In that case
a 15 wire, off the shelf molded cable with 15 pin D sub min connectors
could be used to connect to the PCM located on the instrument panel.

This would further simplify the wiring and speed the installation.
I'll work on the 3D for that.

Tracy, will this idea also work on the latest EFI/IGN system and the EM2?

Paul Lamar

Here is what it would look like roughly.

Paul Lamar

Paul, see my other e-mail for the url to Phoenix Contact. They have 
exactly what you need. you can get the terminal blocks with the terminals 
front or back. Bill Jepson

But Bill how would they know what pin assignment Tracy made from the 
37 pin to the 15 pin? That is one of the key features.

Pins 5,6,10,14,15,16,24,25,26 and 32 all go to the PCM. In that case
a 15 wire, off the shelf molded cable with 15 pin D sub min connectors
could be used to connect to the PCM located on the instrument panel.

These wires go to specific pins on the 15 pin D sub min connector on the back
of the PCM.


That is a huge site Bill I can't find anything on there that remotely
solves this problem. Perhaps you could capture the picture of the device 
and send it to me.

Paul Lamar
 
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