The order was sent today for an AeroVee :-)
Even though it comes in pieces and has to be built, the completion log of Onex'es clearly shows what is the certain path to a flying aircraft. About 95% of completed and flying Onex'es has AeroVee. What in the end became the deciding factor for me was the propeller. The propeller supplied by Sonex was is the best of several dozens they tried. A fixed pitch propeller has to fit the engine and the aircraft, and for another engine with different RPM range, to get this right has to involve lots of trial and error.
I have decided to use a Rotec TBI. But, depending on how the rules are implemented here in Norway, I may actually have to use the Aeroinjector initially, and then modify the engine later. The rules say an engine conversion must be used with the same ignition and fuel system as the "original" conversion, or bench testing will be necessary. A modification later on is not that strict. The thing is however, thousands of VW conversions are run all over the world with all kinds of ignition and fuel systems. After all this is a VW, just like any other VW.
The reason for a Rotec TBI is it has a pressure regulator that is essential for correct mixture during different g-loads, and is otherwise essentially an exactly like an Ellison TBI. A Rotec TBI does however require more fuel pressure than the Aeroinjector, so a pump or two will be required.
Even though it comes in pieces and has to be built, the completion log of Onex'es clearly shows what is the certain path to a flying aircraft. About 95% of completed and flying Onex'es has AeroVee. What in the end became the deciding factor for me was the propeller. The propeller supplied by Sonex was is the best of several dozens they tried. A fixed pitch propeller has to fit the engine and the aircraft, and for another engine with different RPM range, to get this right has to involve lots of trial and error.
I have decided to use a Rotec TBI. But, depending on how the rules are implemented here in Norway, I may actually have to use the Aeroinjector initially, and then modify the engine later. The rules say an engine conversion must be used with the same ignition and fuel system as the "original" conversion, or bench testing will be necessary. A modification later on is not that strict. The thing is however, thousands of VW conversions are run all over the world with all kinds of ignition and fuel systems. After all this is a VW, just like any other VW.
The reason for a Rotec TBI is it has a pressure regulator that is essential for correct mixture during different g-loads, and is otherwise essentially an exactly like an Ellison TBI. A Rotec TBI does however require more fuel pressure than the Aeroinjector, so a pump or two will be required.
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