Chat,

 

A bunch of guys are flying with the fuel system just like the manuals and don't have any problems.  Two things came up when I was working on my fuel system.  One, the boost pump should be mounted as low as possible.  It doesn't pull fuel as well as it pushes fuel.  Two, the 90 fittings are restrictive.  Tim Ong quoted a percentage loss per 90 degree fitting and recommended using the large radius mandrel bend fittings whenever possible.  I was able to eliminate all 90 degree fittings and I didn't have to bend any 1/2" aluminum tube.

 

A couple other guys already described how I did my fuel system, but here's a brief description.  I replaced the 90 degree fitting for the fuel line at the tank with a straight strainer fitting, Lancair sent them to me, some guys have made their own with silver solder.

 

I ran a continuous Aeroquip flex line from the tank to the fuel selector.  It goes forward along the fuselage wall and then under the foot rest.  To install the wing, the line runs diagonal across the rear seat floor giving you enough length to tighten the fitting with the wing sticking out about a foot.

 

I used the mandrel, large radius fittings at the fuel selector and had to modify my floor console to accommodate the extra width.  Same basic thing in the return line but I left the 90 degree fitting on the tank.

 

The boost pump is mounted in the center and I used another mandrel, large radius fitting at the gascolator. You need to be careful that the large radius fitting doesn't interfere with the rudder peddals.

 

See attached photos.

 

Mike Easley