skeptic36 Posted April 8, 2014 Share Posted April 8, 2014 A little bird told me : The 912is is going to be upgradable to have 105 HP and more torque than a ULS. It gets a new ECU, air box and readjustment to the clutch for the additional power. Regards Bill Link to comment Share on other sites More sharing options...
rgmwa Posted April 8, 2014 Share Posted April 8, 2014 912iS Sport? http://www.eaa.org/news/2014/2014-04-01_new-rotax-912%20iS-sport-engine-unveiled.asp rgmwa Link to comment Share on other sites More sharing options...
skeptic36 Posted April 9, 2014 Author Share Posted April 9, 2014 That's the one Link to comment Share on other sites More sharing options...
rankamateur Posted April 9, 2014 Share Posted April 9, 2014 912iS Sport?http://www.eaa.org/news/2014/2014-04-01_new-rotax-912%20iS-sport-engine-unveiled.asp rgmwa Did you notice the date though? Link to comment Share on other sites More sharing options...
rgmwa Posted April 9, 2014 Share Posted April 9, 2014 Yes. Given what they charge for the engine, you'd think they could afford a calendar for their marketing department. rgmwa Link to comment Share on other sites More sharing options...
skeptic36 Posted July 20, 2014 Author Share Posted July 20, 2014 This engine has done 40 hrs in the trike in the form of the 912is, mostly with the author as pic. (He is the owner and designer of Evolution Trikes) The following is what he had to say about his experience after it had the Sport upgrade: First flight test in the new 912iS SPORT engine from ROTAX Well there is good news and there is bad news… Starting with the bad news, there seems to no performance gain what so ever from the additional torque in the way of climb or top cruise speed. I fully expected to have to re-pitch the prop and so we did. We wound up dropped the static RPM from 5650 to 5450 and we lost power as far as I am concerned. While Wes Frey picked up his iS Sport at the same time and made no pitch change on the prop and wound up having no static RPM change. I think that statement says it all. So power wise this engine does not seem to rival the 912ULS or the 912iS. Although it may spool up faster now, we can already run up to full throttle regardless of engine choice and sit with the brakes locked for short field takeoffs, so that doesn't really give us any improved take off distance. Now the good news. This engine is unbelievably smooth and responsive. This is THE engine to have! It was smooth before as the 912is, but now the SPORT is absolutely the smoothest running engine I have ever experienced. It starts better, it idles better, the throttle response is positively fantastic and it even shuts down better than the 80 HP UL in my opinion. The throttle is the silkiest, smoothest action you can imagine (not that this has changed from the iS) and now the incredible smoothness in the new engine matches what you feel on the gas pedal. I am so impressed with this engine. Although it did not give us the power increase I felt the Rotax brochure lead me to believe, I am selling my brand new REVO 912 ULS with only 5 hours on it and ordering a 912iS Sport right away for myself. When you feel the difference between the engines it becomes painfully obvious the iS Sport is the best engine Rotax makes pretty much in every way. Link to comment Share on other sites More sharing options...
fly_tornado Posted July 20, 2014 Share Posted July 20, 2014 I remember reading the Facebook page of Jabiru going on about how a FADEC was a waste of $5K Link to comment Share on other sites More sharing options...
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