Unleaded Fuel Update: Power Maintained With Timing Changes, EGTs Rise Slightly - AvBrief.com Data was presented at the National Warbirds Operators Conference Feb. 8.

"...tests on a high-compression (8.5:1) I0-550-D show the engine will make its normal takeoff horsepower using its #UL100E #unleaded #fuel even though the #engine timing needs to be retarded 3° to meet detonation margins."

avbrief.com/unleaded-fue...

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