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I’ve cracked a lot of ringlands in my turbo honda days. It’s always the ringlands that go, and it always happens after many of thousands of miles of boost. Imo if I was a gambling man and had to guess when your ringlands would go from boost doing frequent spirited driving.
6psi = 60k miles
10psi = 30k miles
That’s long enough for a lot of people to tell you it’s safe, but obviously not even remotely close to the life span of oem design parameters.
On the brighter side, all 5 or 6 times I cracked my pistons, it was just an excuse to build the motor. It’s not like its that much more expensive to build it after the cracked piston. Twice I needed a new block because of cylinder wall hot spots, but the other times just needed a bore and hone, something you want to do with built motor anyway.
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