Re: Block filter bypass valve
How many millions of Chevy V8s are running just fine with a bypass? What kind of filter are you running that you are getting a pressure differential of 12-15 psi from inlet to outlet? There is a lot less flow area in the passage feeding the filter than in the pleats of the media. How often do you think that bypass really opens? If the filter is restrictive enough to open the bypass than it will surely limit oil flow with a blocked bypass. I'd rather have full oil flow (bypassed or not) than restricted oil flow.
People overthink this stuff. For a street / strip car, just run the bypass and don't worry about it. Every single domestic OE V8 had a bypass engineerd into the filter like a Ford, or the adapter like a Chevy. It can't be all bad. My $.02.
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