|
Bob: I have used a digiflo in my 73 P337 for 4 years now, and in a Seneca II for 4 years before that. I find them to be extremely accurate, although I have only empirical data to back up my claim. I always keep the tanks full. If I fill the tanks myself, I'm always within .5 gallons per side. If I have somebody else fill up the tanks, I'm usually within 1-2 gallons per side, but I attribute this to differences in what the line guy considers to be full. Sometimes I'm off "over" and sometimes "under". The differences average out to be within my .5 gallons personal usage.
As a double check, I find that the fuel flows presented by the digiflo match almost exactly the book values for a given power setting, temp, and density altitude.
I highly recommend the Shadin system.
Mark
|