I recently had to update this Engine page as the original XP-400 I have had in Unleashed for 600 hours was involved in the factory recall. Long story.. I’m currently having a new Lycoming IO-390-EXP built by Pinnacle Aircraft Engines to replace my XP-400. I hope to be flight testing the new engine by mid summer 2020.
Also, be sure to check out many of my engine related projects. I have made some modifications, and continue to do so, always check back for the latest!