installed fuel system
I have installed the dual fuel pump, dual filter, check valve fuel system on my plane and it worked perfect. I posted a picture of it a while back.
I used 3/8 copper/nickel hard line instead of braided rubber and instead of aluminum because it is not subject to fire like braided hose, and it is about 5 times stronger than aluminum only a fraction of weight more, and it is inexpensive and very easy to work with.
Since I have the radiator under the belly of the plane that is enclosed in a custom aluminum sheet duct, it made for a perfect solution to hide the fuel system. I know it will be a compromise to the flow of air in to the radiator because it hangs down in front of the radiator, (I know Ross wont like the sight of that! Since his is so skillfully streamlined - Sorry Ross) but I am also confident the radiator and ducting will still provide all the cooling I need. I suspect I may lose 3-4 MPH on the top end from this but I never intended on building a racer.
The other benefit is that I do not have any fuel fittings in the cabin of the plane. To me, that is a plus. It will also make it easy to service as I used an6 fittings in strategic places to make changing the fuel filters easy.
I did a static fuel flow test using different combinations of one tank and one pump to both tanks with both pumps. One the least flow was with the back up pump using only one tank still produced 30 gph. Both tanks and both pumps flowed about 70 gph. I am using dual wasbro GSL393 pumps.
The bad news is that I am having to pull the engine to take off the nose gear to get it modified at the machine shop to comply with the Servie Bulletin. What a pain! but...gotta do it.
Next I am going to start working on a shroud for the intercooler.
Last edited by charosenz : 11-11-2019 at 06:57 PM.