Why a 180 T-Stat? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 06-13-2009, 10:43 PM   #1
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Default Why a 180 T-Stat?

Whats up for using a 180 T-Stat? Anything special you have to do to car for installing one? Does it benefit the car or what happens? Thanks
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Old 06-14-2009, 12:13 AM   #2
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It'* a slight performance increase. Some tuning is not needed but is a good idea to turn the fans on at the new temps.
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Old 06-14-2009, 02:55 AM   #3
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There'* really no performance gains that we've been able to document. If anything running cooler decreases efficiency slightly and this causes a couple of MPG'*.

The reasons for doing it would be if you had added mods that increase temp. Like a smaller pulley, rockers, heads etc.

Like Dan mentioned...turning the fans on earlier is a great thing. Being a 94 your best method for doing that is to contact GMTuners
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Old 06-14-2009, 05:18 PM   #4
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To gain or lose a couple of mpgs?
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Old 06-14-2009, 08:51 PM   #5
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When I 180T'* mine, I noticed at the most maybe 1 mpg decrease. I don't get the best mileage...mainly causing I'm trying to beat Venoms 11 mpg record with a non huffing motor! w3
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