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Gosh Pete, other than the aluminum block v8's, I do have any suggestions. I do not know of any Lycomings w/ the intake on top.
I like all the innovation in the homebuilding movement and I routinely fly behind VW's and Snowmobile engines. I am presently building a One Design (DR-107) from scratch and I have purchased a Lyc IO-360 that I am going to overhaul and put in it. For my purpose built aerobatic airplane, I wanted a proven performer. I worry about the reduction drives with gyroscopic forces coming into play on conversions. These auto engines have to run at a higher continous rpm than they were designed for, so I worry about longevity.
I do not know much when it comes to turbocharging, but typically as I am sure you know, turbochargers on certified aircraft do not "boost" at low altitude, rather they try to mainain pressure as altitude increases.
Running high boost at low altitude on a normal aircraft engine may not last to long. Even with better fuel control and stronger ignition, I do not think you could get away with much boost. (like I said though I am no expert in this area)
How about a turbo prop (probably not the best for how a biplane flys)?
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German autos: '79 911 SC, '87 951, '03 330i, '08 Cayenne, '13 Cayenne
0% Liberal
Men do not quit playing because they get old.... They get old because they quit playing.
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