It's been long postulated that car engines are unsuitable for aviation use because of the high continuous power demands compared to motoring. Is this still true in the days of 1000 Hp Helephant crate engines (7 ltre supercharged), V8 Supercar engines that have the majority of components last indefinitely and now 600 Hp 4 litre power units are common.
The Heliphant engine is a good example. 1000 Hp put of the box, why couldn't it be run at 500 Hp in an aviation context. What am I missing. I'm not even touching the 500 CID billet engines that have set 4000 Hp on dynos. This unit costs approximately the same as a brand new TIO-550 ($130,000 USD). So has the game changed?
Some interesting videos I have discovered.