Our testing showed a little less power with the 2050, but mileage fairly close to the same as 2013. Any mileage gains from the 2050 were negligible, maybe 5 seconds in a tank of fuel? The run times for mileage test vary quite a bit because it depends on throttle control of the driver. Back when we were running Sirio, Cody would go 9, and Lutz would run out in 6:30 lol

http://www.horizonhobby.com/Products...rodID=ORI80655

Matthijs, don't feel bad about the old ABI 3 port, it's a great engine! Capable of 10 minute run time and Cody's favorite engine to that point in his career. It's a gem.