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Old 05-14-2002, 06:41 PM
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Join Date: May 1999
Location: Diamond Bar, CA
Posts: 73
Question thermostat, Wahler or Behr

I guess they are both OE parts. Any reason why I should go for the more expensive Behr instead of Wahler? Thanks.
Harry (94 C280)
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Old 05-14-2002, 07:58 PM
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Annelid wrangler
Join Date: Apr 2002
Location: Fountain Hills, AZ
Posts: 4,932
No reason that I can think of. Both are quality products.

German Star
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Old 05-14-2002, 09:22 PM
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Join Date: Aug 1999
Location: Florida / N.H.
Posts: 8,804
I have found the Behr has a better flow rate at low rpm than
the Whaler.
The design is coned vs. flat disc and I have found that at idle in warm weather , the Behr seemed to have less temp rise. I found the Whaler rate needed a few rpm above idle to flow well. [ resulting in higher idle temps]
This may be just the few I tested , but there was a definate difference . I was able to get the Whaler temps to drop by simply adding some rpm's , but the Behr was steady and did not need any , nor did the Rs make any difference...[ thus, my conclusion]
Often wondered about this myself... anyone ????
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