Quote:
Originally Posted by wnta1ss
A good tune does not guarantee that you could use the car however you want without any chance of trouble. Obviously a good tune gives you a better chance of success, but if there's a mechanical issue in your engine like really tight rings, there's only so far that you could push it.
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Tight ring gaps are not a mechanical issue, it's a characteristic of the engine. It's something you account for and tune accordingly. We used to tune Honda 1.6 motors and 300whp was the absolute max before the ringlands would crack. Now it's known how to tune accordingly and people are pushing 500whp on stock internals. The tune is the weak point. If you tune it with no detonation then it will take a lot of cylinder pressure to crack a ringland normally.