I've heard reports of 0320s in NZ modified with 10:1 pistons in a helicopter
operation.
"pittss1c" wrote in message
...
Has anyone here done or considered 10:1 pistons for an E-series O-320.
I have read the articles on how an E series differs from the others, but I
am not sure that this closes the door on the subject.

For example, if one was mostly interested in takeoff power or power at
altitude...

I am sure it will bring down the TBO, but I don't expect to pass TBO on
the engine anyway (due to years more than wear). Besides, how many
homebuilts do? (I doubt there is a statistically significant group with
2000 hrs on them)

Mike