I’m using dual Lightspeed ignitions instead of traditional magnetos. So I need to install the two brain boxes somewhere. I tried the ribs behind the firewall, but the included wiring didn’t reach. So, I made this mount that holds both boxes. It attaches to the top angle on the firewall and the rudder support bracket. The end result is rock solid, convenient for wiring and service if needed.
Another view.
Installed.
I was able to fit the ignition sensor connector through the firewall without cutting by disassembling d-sub and slotting the SafeAir firewall pass-through.
Another view from the aft side of the firewall.
Bowen Aero 
Are the dual ignitions for redundancy (sp?), or are you supposed to have two to begin with?
For both redundancy and efficiency. The typical piston aircraft engine has two magnetos, which are proven and effective. But the this EI is solid state, has variable timing and a hotter spark. Zoom-zoom! 🙂
Larry,
Now that you have had the Lightspeed in for over a year, how has it worked out? I’m just installing a pair that came with a Superior IO-360 that was bulit in ’04 but never installed.
Jim Kinninger
NV33.com
I wish I could tell you! The project is moving forward, but slowly. No engine start yet. I’m currently figuring out the electrical implications of dual LSI’s…