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Originally Posted by DRACHENV6
Correct me if I'm wrong, but I would classify overboosting as a WG failure. A secondary/tertiary backup system would account for installation errors, etc.
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Look through that list above and try to find an example of overboost caused by failure of the wastegate.
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Yeah especially at the torque people are making with turbos. The SC kits aren't anywhere close. Everything gets stressed.
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That doesn't really matter. Preventing knock is all in the tune. Even a bad N/A tune can rattle the motor with knock and spin the bearings(or worse).
I've seen built race engines with fully forged bottom ends come apart due to knock with less than 200 ft lbs at the flywheel.