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Old 03-27-2019, 08:59 PM   #118
Member#: 198281
Join Date: Dec 2008
Chapter/Region: MAIC
Location: Virginia
2005 WRX/STi
WRB of course


Originally Posted by tsrapophis View Post
Do you have any guidelines about what oil pressure vs boost threshold causes problems so that I can check my own logs and hopefully prevent this?
The short answer is no. Far too many variables here. If you're pushing the limits on the low end (an easy task with any Subaru engine) you build it accordingly and cross your fingers. There just isn't a such thing as low end power AND long term reliability with a Subaru. Rod bearing size, design, oiling, etc. are all going to make things difficult when it comes to the low side of the rev range. My recommendation is to mimic the OEM spool and power ramp rate to improve long term & higher power longevity.

Originally Posted by tsrapophis View Post
PS. Very happy to see you guys involved on this forum. I also like your products, as an engineer they make me happy, which is why I'm running your pan and pickup.
Thanks so much for your support and the kind words!
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