Quote:
Originally Posted by yelsew
You are right that emissions and regulations hold back these types of engines from production, and yes, to achieve these engine speeds, a good bit of extra cost goes into these engines. The one thing that, from my experience, keeps these engines out of our cars is their life expectancy, for many race engines measure their life in hours rather than miles.
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Nevertheless, much of that is because how hard those engines are pushed to their limits. I would think that if driven moderately without abusing the revs, they could potentially have a considerably longer life.