Greg Dillon's EFII Installation
March 2020 update: Greg had his first flight after upgrading to System32 engine management on March 7, 2020. The flight was uneventful. Greg's initial report is: The engine is easier to start and runs noticeably smoother that with the legacy electronics. The engine was smooth and powerful throughout the power range and the previously felt "stepping from map point to map point" of the old ECUs is now gone. Greg's summary: "Thanks for a great system!"
February 2020 update - Greg has completed his System32 upgrade. First full power run-up and tuning is done. First flight with System32 should be very soon!
First impressions after running System32 were: easier starting, smoother running, and better throttle response. The semi-sequential nature of System32 fuel delivery means that the fuel delivery is timed to the intake valve operation of each cylinder. This provides for better operational symmetry between the cylinders than the old batch fire system that was replaced. The result is better behaved, more car-like operation of the engine.
Greg Dillon's RV-9A with its EFII O-320-H2AD engine has earned its wings.
A few more parts to bolt on and it will be time to fire up the engine.
Here you can see a typical updraft throttle body installation on Greg's O-320. The throttle position sensor (TPS) is located on the left side (as pictured) of the throttle body. The intake air temperature sensor is higher and to the right of the TPS in the picture.
Greg has opted for firewall mounting of the coils. This O-320-H2AD only has one mag drive entry on the accessory case leaving inadequate room for accessory case mounting of the coils as we would do on most installations.
Greg has mounted his Bus Manager on the rib forward of the panel to provide a triple redundant Essential Bus to power the critical electronics.
We should hear some noise out of this nice installation very soon!
Greg has had his first engine start and a couple of short runs. The engine started instantly, as they always seem to! Now to finish a number of small airframe projects, then it will ground run time!