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Old Dec 31, 2008 | 11:05 AM
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Default Temperature Gage

Seems that when I am at a stop-light, or idling for more than a few minutes, the temperature increases notably.. (over 210). Is that normal? Once I get moving, it drops back down to normal range (190 +/-)
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Old Dec 31, 2008 | 11:09 AM
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Yes, that is normal.

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Old Dec 31, 2008 | 11:10 AM
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Originally Posted by VinnyT
Yes, that is normal.

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Old Dec 31, 2008 | 11:47 AM
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Yes, referred to as heatsoak. Engine and cooling systems are not receiving the cooling effect from wind and therefor the temps increase very quickly.

-Alex
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Old Dec 31, 2008 | 11:57 AM
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The cooling fans do not beomce active until about 220' or so. Before that, you are reliant on the cars forward motion to provide heat-transfer.

It is not out of the norm, just keep an eye on your coolant level and freshness. I have seen higher than 225 before, does get your attention.

Good Luck
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Old Dec 31, 2008 | 12:17 PM
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It also won't climb with the air on. Both fans run all the time when your compressor is running. Here in Florida, the air is on most of time.
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Old Dec 31, 2008 | 12:19 PM
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Originally Posted by ALLEGRO
The cooling fans do not beomce active until about 220' or so. Before that, you are reliant on the cars forward motion to provide heat-transfer.

It is not out of the norm, just keep an eye on your coolant level and freshness. I have seen higher than 225 before, does get your attention.

Good Luck
Exactly right. I went for the 160 degree thermostat and, during a dyno tune, reprogrammed the fans to come on early. I run at a cool 180 now.
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Old Dec 31, 2008 | 01:21 PM
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Originally Posted by EZEDDIE
Exactly right. I went for the 160 degree thermostat and, during a dyno tune, reprogrammed the fans to come on early. I run at a cool 180 now.
Isn't that too cool for the engine to operate?

-Alex
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Old Dec 31, 2008 | 02:04 PM
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Originally Posted by AlexSmith
Isn't that too cool for the engine to operate?

-Alex
Absolutely not. ECS tuned my fans (along with many other perimeters that Saint Doug rewrites in his tunes) along with installing a 160 stat and at a constant 174 the engine is able to use more ignition timing without losing timing to the anti-knock sensors as detonation is reduced through removing unwanted flashpoints (preignition) in the combustion chambers. This is all good stuff that the after market and knowledgeable folks like ECS do to further improve GM's somewhat "cookie cutter" engine management systems making optimum power and maintaining the very best efficiency that the LSx series drive-trains are capable of.
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Old Dec 31, 2008 | 02:05 PM
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It's not a problem IMO. Now if your temp gets over 230-235 or so, then you might want to do some more checking.
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Old Dec 31, 2008 | 02:05 PM
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Just to make sure, you might check the radiator and condenser to make sure nothing is blocking the air flow.
It's common to find all kinds of road debris in the cooling fins...
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Old Dec 31, 2008 | 02:46 PM
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Originally Posted by Ol'55
Absolutely not. ECS tuned my fans (along with many other perimeters that Saint Doug rewrites in his tunes) along with installing a 160 stat and at a constant 174 the engine is able to use more ignition timing without losing timing to the anti-knock sensors as detonation is reduced through removing unwanted flashpoints (preignition) in the combustion chambers. This is all good stuff that the after market and knowledgeable folks like ECS do to further improve GM's somewhat "cookie cutter" engine management systems making optimum power and maintaining the very best efficiency that the LSx series drive-trains are capable of.
Interesting. Personally I would think something is wrong with my car if it never exceeded 180F. Not arguing as you have had personal dealings with a tuner in the issue. I would be just be very skeptical

-Alex
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Old Dec 31, 2008 | 03:00 PM
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going to a 180 thermo this spring but your temps are good
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