I wonder how many successful flight hours were put on converted 2-stroke snowmobile engines before Rotax hit 10,000 units sold? I'm guessing a shitload. No idea how many flight hrs Egg has on their engine, but I found another apparently unrelated Honda Fit engine install now test flying a with an SDS EM-4 4F ECU system. Pic from
http://sdsefi.com/. Flight time as of Dec. 10/09 is 33 hours. -woot- Application newness aside, a couple of things that strike me are 1.) at least Egg has an extended history of Sube auto conversions... although I get the impression the newer engines (not ea-81) may have been problematic (don't know if that is true) and 2.) the Honda is made to run at much higher rpm than the Sube, IMHO has an excellent chance to provide better longevity if they can get it set up right, and 3.) it fits a whole lot nicer than the 3-cyl Suzuki/Geo which has to be turned even more on its side for a tractor install.
http://www.raven-rotor.com/ In any event, I like the idea of EFI and hope the engine works because it is not out of the range of possibility for our planes. We need more choices and I don't mean either right nut or left to Rotax for a new 912. Sadly, I am in the Camp of Can't Afford when it comes to a new build and finding a good low hr used 912 -in or out of a plane- has proved near impossible.
honda1.jpg (58.65K)
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FWIW, I also saw a blurb on the SDS website that said they are developing a new injector boss with 17lb. Bosch injector for Jabiru 2200 and 3300 EFI installations.
jabiruboss.jpg (24.91K)
Number of downloads: 8