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Neven,
I understand what you're saying, but I'll say it. Comparing the two, a 2 liter, 110 HP T engine will last longer than a 2 liter 180 hp S engine.
The longevity of an engine is due to many factors. In the case of the above engines, the compression ratio is a small factor. The bigger factors are rev limits and BMEP; the S engine produces much more cylinder pressure and thus heat and wear than the rev-limited and relatively low-stressed T engine.
Sherwood
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