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Old 02-25-2004, 11:23 PM   #22
GotHP?
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Member#: 51138
Join Date: Dec 2003
Chapter/Region: NESIC
Location: CT
Vehicle:
2015 LE STI
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I think we're all in agreement now that these ARE in fact cast, but to put the last nail in this issue I asked an STi design engineer about this (automotive industry contact in Japan) and he also confirmed they are a new high strength cast alloy. To go much further, we are treading on Subaru's core technical secrets - do we really think they OWE it to us to offer all technical details which the Mistubishi engineers would just love to get their hands on?? Sure it'd be nice, but don't hold your breath for their forged vs. new cast dyno fatigue life data...Bottom line, as we upgrade just avoid detonation and we should be ok for fatigue life. Like specul8r said, if a stock setup blows a piston, there's a problem...
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