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Old 08-14-2006, 07:47 PM   #1
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Default Replacing with a 180F thermostat (pros & cons?)

Is somebody can explain me why some people are replacing their 195F thermostat with a "no spec" 180F?
I do not see the advantage of running cooler unless I miss the big picture of this practice.
My understanding tells me that the effect on gas milage has to be impacted if the car is not reaching the temperature as it was designed.
Is such practice can generate some sort of false codes alert?
On the other hand, I can imagine that running with a 180F will compromise the heating system efficiently during winter and will worst the fuel consumption.
Am I right?
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Old 08-14-2006, 08:25 PM   #2
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yes.. its more for boosted cars in the summer...
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Old 08-15-2006, 11:59 AM   #3
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I'm NA and run 180* year round....in Florida. No negative effects I can tell of at all. Positive effects, yes. No codes.
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Old 08-15-2006, 12:02 PM   #4
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Quote:
Originally Posted by lash
I'm NA and run 180* year round....in Florida. No negative effects I can tell of at all. Positive effects, yes. No codes.
same here
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Old 08-15-2006, 09:26 PM   #5
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Yep...not good for winter. People on the boards will start dropping to 180'* and drilled 180'* when they have a modified engine that needs to be cooled quicker. Even stock supercharged Bonneville'* will be just fine with the 195.
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Old 08-15-2006, 10:52 PM   #6
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Quote:
Originally Posted by captainmiller
Yep...not good for winter. People on the boards will start dropping to 180'* and drilled 180'* when they have a modified engine that needs to be cooled quicker. Even stock supercharged Bonneville'* will be just fine with the 195.
I think that where you live makes a more sens about this thermostat 180F debate
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Old 08-16-2006, 01:15 PM   #7
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how easy is it to replace the therm.? What if i ran a 180 in the summer and switched back to the 195 in the winter?
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Old 08-16-2006, 01:24 PM   #8
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when i Put the 180 in my NA i noticed that when that motor is fully warmed up i dont feel the heat lag anymore.. you kow how when a motor gets hot it feels more laggy.. no mine doesn't do that.
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Old 08-16-2006, 01:26 PM   #9
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Quote:
Originally Posted by Widetrack Pontiac
how easy is it to replace the therm.? What if i ran a 180 in the summer and switched back to the 195 in the winter?
actually a few people here do the switch for the seasons. not a bad idea, just a matter if you want the hassle.

I am not sure how hard it would be to do on the L36, but it sure is easy on an LN3. But I DO KNOW that you are heading in the right direction with that because that would most likely prevent premature UIM failure.
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Old 08-16-2006, 01:30 PM   #10
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Quote:
Originally Posted by bandit
when i Put the 180 in my NA i noticed that when that motor is fully warmed up i dont feel the heat lag anymore.. you kow how when a motor gets hot it feels more laggy.. no mine doesn't do that.
really? because I was running a 180 for a long time and noticed no difference, so when i switched back to a 195 for last winter, I left it there and really have not noticed TOO much. But yeah, I do know what you mean by heat lag. I wonder..has anyone ever tested to see if the performance numbers are different IN AN N/A engine whether it has a 195 or 180 at full operating temp? Someone should run some tests.
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