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Old Aug 13, 2014 | 03:30 PM
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So why do we put a 160 thermostat in when the car runs at 200?
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Old Aug 13, 2014 | 04:02 PM
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Good question. I dont get it either. Weather it opens at 160 or 185 or whatever the coolant is still going to 198-220 like its supposed to.
I see this thread going several pages already.
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Old Aug 13, 2014 | 04:23 PM
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Originally Posted by EVRose
Good question. I dont get it either. Weather it opens at 160 or 185 or whatever the coolant is still going to 198-220 like its supposed to.
I see this thread going several pages already.
I can get a 186 thermostat for 13.99 less 15% at Advance or I can pay 19.99 plus shipping for a 160 and the car will run at 200 either way.
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Old Aug 13, 2014 | 04:39 PM
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Originally Posted by timd38
I can get a 186 thermostat for 13.99 less 15% at Advance or I can pay 19.99 plus shipping for a 160 and the car will run at 200 either way.
Exactly. It will take longer to get there with a 160 but it eventually will get there.
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Old Aug 13, 2014 | 04:55 PM
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I am no expert but I don't think that would be the case in the winter. If the thermostat is open then you are limited by the heat exchange capacity of the radiator and not the flow of coolant. However, if the weather were cooler, or you had a more efficient radiator then your temps would be lower.
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Old Aug 13, 2014 | 05:26 PM
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Originally Posted by EVRose
Good question. I dont get it either. Weather it opens at 160 or 185 or whatever the coolant is still going to 198-220 like its supposed to.
I see this thread going several pages already.
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Old Aug 13, 2014 | 05:27 PM
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double post

Last edited by tennblkc6; Aug 13, 2014 at 05:28 PM. Reason: double post
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Old Aug 13, 2014 | 06:14 PM
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The purpose of the thermostat is to set a minimum temp, not a maximum. If the car is driven at 80mph when it is very cold outside, it may get down near 160, but it won't stop the car from warming up when it is hot outside.
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Old Aug 13, 2014 | 06:49 PM
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Originally Posted by cclive
The purpose of the thermostat is to set a minimum temp, not a maximum. If the car is driven at 80mph when it is very cold outside, it may get down near 160, but it won't stop the car from warming up when it is hot outside.
Don't disagree, but if you tune the car warm and that number is around 200, why would you want the temp floor at 160?
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Old Aug 13, 2014 | 09:10 PM
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You can use 160 or 180 but you have set your radiator fans to come on at a lower temp associated with the thermostat. There are several way to do this.
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Old Aug 13, 2014 | 09:17 PM
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Originally Posted by dentalfloss
You can use 160 or 180 but you have set your radiator fans to come on at a lower temp associated with the thermostat. There are several way to do this.
Did that and have a Z07 radiator but it still runs at 200. The oil runs so cool, I had to block the grill to get oil temps up.
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Old Aug 13, 2014 | 09:49 PM
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You use a 160 Thermostat so you can cycle the fans to start earlier and shut off earlier. With a stock stat, if you wanted to start the fans at 200 and off at 195 then the stat will start opening and closing, which ain't good.

Remember, the temp on the stat is when it starts to open, not when its fully open.
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Old Aug 13, 2014 | 09:55 PM
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Originally Posted by glenB
You use a 160 Thermostat so you can cycle the fans to start earlier and shut off earlier. With a stock stat, if you wanted to start the fans at 200 and off at 195 then the stat will start opening and closing, which ain't good.

Remember, the temp on the stat is when it starts to open, not when its fully open.
Ok, I get it now!

THanks!
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Old Aug 13, 2014 | 10:16 PM
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But there's still only one fan on a C6.
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Old Aug 14, 2014 | 02:27 PM
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Originally Posted by cclive
But there's still only one fan on a C6.
Not if you have Dewitt duel fan setup!
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Old Aug 14, 2014 | 02:59 PM
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Originally Posted by timd38
Not if you have Dewitt duel fan setup!
True, and if you had replaced the engine with a vortec V-6, you would have a six cylinder Corvette.
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Old Aug 14, 2014 | 03:22 PM
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Originally Posted by cclive
True, and if you had replaced the engine with a vortec V-6, you would have a six cylinder Corvette.
very useful just saying.......
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Old Aug 14, 2014 | 05:19 PM
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Originally Posted by cclive
True, and if you had replaced the engine with a vortec V-6, you would have a six cylinder Corvette.
Are you saying that Vortec V6 would be an upgrade!
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Old Aug 14, 2014 | 06:09 PM
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Originally Posted by timd38
Are you saying that Vortec V6 would be an upgrade!
Nope, just a change...
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Old Aug 14, 2014 | 08:07 PM
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Originally Posted by cclive
The purpose of the thermostat is to set a minimum temp, not a maximum. If the car is driven at 80mph when it is very cold outside, it may get down near 160, but it won't stop the car from warming up when it is hot outside.


You are correct! ....and to my surprise it looks like we are finally making progress on this subject.
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