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Old 10-27-2020, 10:29 PM   #234
Scooby Specialist
Member#: 260314
Join Date: Oct 2010
Chapter/Region: NESIC
Location: S central CT, New England
2007 STI
silver gray metallic


What is your normal max RPM? Do you have any data logging capability?
It could easily be several things happening simultaneously. Your small, stock pump could be pooping out due to loose bearing clearances or it could be cavitating at higher RPM's. The centrifugal forces due to the high crankshaft rotation speeds (plus loose clearances) could also affect the oil system needs.
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