I need some feed back from the pilots
out there that might be using the 555 system.
Here is the leaning pot I found that will solder
to the mother board and poke through the instrument panel.
Also the switches I plan to use.


Another option is to let the builder choose the switches
and pots and mount them remotely from the mother board.
The downside is more skilled labor required to wire them
to the mother board. There will be at least one pot and
one switch for every two injectors. That way the mixture
can be adjusted separately for each rotor based on the EGT.

What do you all think?

I am also looking for somebody
building an EFI engine that would like to try this
prototype system on the ground for free. Let me know
where so I can show up when you are ready to test.

You will need to buy a wide band mixture monitor.

Paul Lamar



Ditto with many others on remote mount.  Allows one to design a nice
control layout that makes sense in the context of your particular panel.

Mark (Rocky Mtn High)