My heavy equipment runs at very high % of hp 12 hours a day, under massive amounts of turbo boost, and truck engines while less so, still often spend 20 minutes at 100% Throttle, also under massive amounts of turbo boost. Not some gentle 5 or 10 psi. I have never ever ran my airplanes at 100% for more than maybe 90 seconds, then reduced the power. Living at 1133' and often landing at places much higher, my naturally aspirated planes basically never are at 100% power, even at take off. And should I run them fire walled at 8,000 or 9,000 ASL they are not even close to 100% power. They make very little power per cubic inch/liter even at sea level. I generally sell my equipment off at 17,000 to 19,000 hours on them, my semi trucks around 1.3 to 1.5 million kilometers. So a TBO of only 2,000 hours seems very low. Years and years ago I bought a timed out Cessna 210, flew it another 170 hours on condition, it still ran perfectly when I put in a reman. Sold it with 612 hours on the new reman engine, to a woman I knew. She still owns it, timed it out, and while she flies it again on condition, she tells me that it runs perfectly still. I talk to her usually a couple of times per week. I told her that if she ever wants to sell, to please give me first kick at the can. I had sellers remorse the day after. I don't get the TBO times, should be more in the range of 8,000 hours IMO. Lower rpm, never jolted hard because someone spun it to 6000 rpm and popped the clutch, nor floored 30 seconds after start up, barely any cycles compared to cars and such. No more pampered engines exist than airplanes.
