This book[1] on the Wankel history considered 150k miles the life expectancy for the 13B, less than for previous motors. They're really cool motors, I'm in tha

This book[1] on the Wankel history considered 150k miles the life expectancy for the 13B, less than for previous motors. They're really cool motors, I'm in that boat with you. How they work means forced-induction doesn't necessarily impact engine life the same way FI on piston/crankshaft motors. That the piston motor is just going to last longer not needing or before it needs major restoration. A mildly interesting point is that heat isn't an easily mitigated factor, unless we're talking the exact use cases in the OP article -- generators, which run in a very controlled RPM band. Same when we talk about UAV engines or other electricity-generation applications. So, you can engineer the motor to be efficient at those rotation speeds WRT heat management and fuel efficiency. 1: https://books.google.de/books?id=IB2lMFqTTl8C&pg=PA117&lpg=PA117&dq=wankel+life+expectancy&source=bl&ots=_3t9jAEzs5&sig=Ymz3dkAEy-ibxmTPrVJmLh_CKYs&hl=en&sa=X&ei=yDc6VfnFCsuwsQGVxoGoBg&ved=0CDsQ6AEwAw#v=onepage&q=wankel%20life%20expectancy&f=false https://books.google.de/books?id=IB2lMFqTTl8C&pg=PA117&lpg=P...