you may have already had some damage to the ringland then and pushing for more more power finally finished it off/ revealed the issue.
i've seen a few engines that have smoked their tits off at higher boost settings but with lower boost the engine would have appeared to be ok
good luck with the future
i've seen a few engines that have smoked their tits off at higher boost settings but with lower boost the engine would have appeared to be ok
good luck with the future