At what pressure does the oil bypass valve open?

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May 23, 2014 | 08:24 AM

turbo8765

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Joined: Jun 2006

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At what pressure does the oil bypass valve open?

Does anyone know at what pressure the oil pump bypass valve opens?

I'm gathering information to decide if I'm doing to run a slightly thicker oil on track.

May 23, 2014 | 09:49 AM

s2000Junky

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Bypass valve?

May 23, 2014 | 10:00 AM

redboost10

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Joined: Mar 2011

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From: Woodburn, OR

Are you meaning the oil filter bypass valve?

May 23, 2014 | 11:25 AM

urBan_dK

Joined: Dec 2007

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From: Mill Creek, WA

Depends on the oil filter.

May 23, 2014 | 12:37 PM

thepoi

Joined: May 2011

Posts: 341

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Wix lists 8-11 for its replacement: http://www.wixfilters.com/Lookup/Par...x?Part=51334XP

edit:// oh read that wrong, you want oil pump bypass. Its ~90-100psi (via Stack oil pressure gauge)