There are a few companies with emerging technology for Electronic fuel injection and ignition. The problem is the complexity of the needed fuel lines associated with these. I spent countless hours bending fuel tubing and could never get it just quite right. When I leak tested my system I had leaks and was just not happy.
I was contacted by Steve (Aircraft Specialties) who was intrigued about creating a drop in package of fuel lines for the EFII system. So we set to embark upon creating one.
Here is a picture of the lines I bent. These are tough to make. The most complex bends are in the tunnel that go to the Andair duplex valve. You have to clear the pushrods for the ailerons and the central pushrod for the elevator control. Super hard to get these correct with no tension on the flare.
These are all the hoses I cut for the installation with the various fittings that would provide an installation that is leak and trouble free. I feel the fuel system is the most critical of all systems in the plane. I know everyone comments about weight of stainless braided lines. Yes there is a penalty. I weighted all my aluminum tubes and B nuts and then weighted the stainless lines and fittings. There is a 1.83lb weight increase as a result of these.
The lines were sent back and Steve created exact copies with perfect clocking of the fittings for a smooth install that is functional and aesthically perfect. This allows good visual inspection
The lines for the tunnel between the bulkhead and the fuel valve fit perfect and are clear of the pushrods
Under the seat the fuel in and fuel return lines are easily secured in the brackets. I planned ahead and moved my brake line to the aft most position.
I wrote some detailed instructions for pump install and placement so these lines will work for anyone. Hope this solves a problem for people as more builders are venturing into the EFII systems.