Bosch Premium Cut Open!

[Roger]

Walmart has a new SuperTech model, ST7317, that cross references with the Bosch 3323 and Fram 7317. Looks like it replaces the tiny ST6607. Anyway, it has the old style spring bypass, not the newer leaf clicker design. So it looks like Champion may still design the bypass valve to the needs of a few individual applications.

 

[FordSVTGuy]

Lets keep this thread open and going. I cut open a Supertech ST2 (also an equivalent of FL-820S). I have to say that the ST2 looks EXACTLY like the Bosch premium in every way, just costs e $3 less. I use a Wix, so I will cut the FL-820S equivalent open soon...

Internals:
http://home.comcast.net/~micgang/wsb/html/view.cgi-photo.html--SiteID-1324327.html

Filter Media:
http://home.comcast.net/~micgang/wsb/html/view.cgi-photo.html--SiteID-1324326.html

 

[nthach]

what Champion Labs sent me....


The new patented "clicker valve" works more efficiently than the older spring type bypass valve. Less unfiltered oil is bypassed with this new design valve. Super Tech, does follow the Fram numbering system for easier reference, per Wal-Mart's request.

Thank you,

Chad Garrett
Technical Service Representative
Champion Laboratories, Inc.

I have a ST3614 on the Lexus for my ARX treatment...

 

[cheeks]

quote:

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The new patented "clicker valve" works more efficiently than the older spring type bypass valve.

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I have my doubts, but he does this for a living and should know more than me. What do the rest of you think?

 

[jthorner]

quote:

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The new patented "clicker valve" works more efficiently than the older spring type bypass valve. Less unfiltered oil is bypassed with this new design valve.

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This makes no sense to me. The bypass valve should allow as much oil to flow through it as is required at the moment to keep the pressure drop across the filter medium below whatever the specified bypass pressure number is.

A more efficient bypass valve design as defined above seems to be a nonsense statement.

John