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Old 02-23-2013, 08:52 AM   #141
t6nis1234
Scooby Newbie
 
Member#: 316906
Join Date: Apr 2012
Chapter/Region: International
Location: Estonia | Tallinn
Vehicle:
2001 Impreza WRX 2.0

Default

I still have old flat WRX pan and just the engine block itself is STI.

I understand that 11mm pump has higher pressure and more oil goes through faster. But new WRX's and STI's are using the same or even 12mm pump, with the same amount of oil, so cannot believe that it could be a problem. Plus my cylinders are resurfaced +.025mm, and my pistons will get a new custom made oil cooling, so there are "more places" oil needs to reach at the same amount of time.
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