I have to disagree, respectfully. I never knew, or cared that the Facet was approved by the FAA, and still don't. I used one on my first KR and with the pump turned off, the engine would continue to run. Steve Bennett has one on his KR with the carburetor mounted on top of the engine. If the pump is not running, the engine will still be able to pull enough fuel ( sucking carburetor ) to allow it to run up to 2400 rpm. This is why I am installing 2 of them on this plane. If the flow is restricted by half ( assumption ), I will have doubled the capacity for flow, so it should be restricted by none. ( assumption ).
I don't think they suck badly at all. Quite the opposite. I think they work very well. I also thought about doing the bypass with a check valve, but was advised of the problem that you found, of not being able to overcome the spring pressure with gravity and not loosing any flow, so discarded the idea and went back to the two pump solution. One thing for sure, your results WILL vary. There is a time for building and a time for FLYING and the time for building has expired. See N64KR at http://KR-Builder.org - Then click on the pics Daniel R. Heath - Columbia, SC See you in Mt. Vernon - 2005 - KR Gathering YOU Wrote: we use Facets because they are approved by the FAA Serge Vidal Paris, France
