914 Overboost
Newly installed engine, when throttle is moved even slightly past 100%, the MAP exceeds 40 and the RPM goes past 5800.
Fixed pitch prop, it's already set at a fairly steep angle, but it is carbon and somewhat thin, 3 blades
7,000 ft DA airport
Cable set correctly
Wastegate does a normal self test when powered on
No warning lights
Sensors all seem to read correct values in BUDS and throttle has been calibrated
It behaves normally below 100%