Hi Group,
There has probably been more experience collected on this site than any other in the world, regarding the Rotax 912 ULS, and the Jabiru 3300. These are my engine choices for my current project and I would like a consensus.
My thought:
The Jab has an extra 20 hp and more torque, but it is not as mature of a product.
Also, much less plumbing and a more simple engine.
It can happily burn 100LL
Single carb
Valve trouble as been noted.
There have been more than 15,000 912's built and they have a bullet proof lower end. Not sure about the top end. I understand that you can get in trouble up there by simply turning the prop backwards.
Also, some gearbox woes.
I sure would like to hear from some experienced users.
Thanks, in advance
Tom