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Old Jul 14, 2008 | 09:14 AM
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Default Thermostat question

My C5 has been running a little on the hot side 210-220 and someone told me to have a 160 degree thermostat put in.

Can someone tell me what a stock C5 thermostat degree is??

Any tips or better ideas please feel free.....
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Old Jul 14, 2008 | 09:18 AM
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This topic is like gun control and abortion

No-one will change thier mind. I have always gone with the lower 160 thermostat. However 220 to 230 is not hot, it's considered normal.

In Atlanta in the summer it gets so hot, you could cook an egg on my hood. I prefer running the car around 200, because intraffic it will still get 230's.

Also, chaging the stat alone will not get your engine coller, you also have to reset the fans to come on earlier. The stat just lets the collant circulate sooner.

Either way you will be fine
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Old Jul 14, 2008 | 09:20 AM
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How does one "set" the fans??



Originally Posted by Gonzo
This topic is like gun control and abortion

No-one will change thier mind. I have always gone with the lower 160 thermostat. However 220 to 230 is not hot, it's considered normal.

In Atlanta in the summer it gets so hot, you could cook an egg on my hood. I prefer running the car around 200, because intraffic it will still get 230's.

Also, chaging the stat alone will not get your engine coller, you also have to reset the fans to come on earlier. The stat just lets the collant circulate sooner.

Either way you will be fine
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Old Jul 14, 2008 | 11:54 AM
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Originally Posted by canmad7

Can someone tell me what a stock C5 thermostat degree is??
187 degrees F.
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Old Jul 14, 2008 | 12:03 PM
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Does a car run better when it's not so hot?


Originally Posted by Quicksilver Vert 01
187 degrees F.
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Old Jul 14, 2008 | 12:09 PM
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Originally Posted by canmad7
How does one "set" the fans??
The fans are set through a tune/computer.

I'm running a 160t-stat and have a few bolt-ons, but my tuner has it set that I run 185* cruising on the highway in this Southern Mississippi heat, haven't been above 197* in stop and go traffic.
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Old Jul 14, 2008 | 12:10 PM
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Do a search on thermostats & fan settings; lots of reading material.
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Old Jul 14, 2008 | 12:13 PM
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Originally Posted by canmad7
Does a car run better when it's not so hot?
There's been much discussion, and many debates over this question. Most agree that the "sweet spot" for coolant temperature is somewhere between 180 and 190 degrees F.
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Old Jul 14, 2008 | 12:22 PM
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I was stuck in Chicago traffic and it was pushing 220 and I thought it was gonna pass it but traffic let up and I never got to see if it would have went any higher.

Originally Posted by renegad44
The fans are set through a tune/computer.

I'm running a 160t-stat and have a few bolt-ons, but my tuner has it set that I run 185* cruising on the highway in this Southern Mississippi heat, haven't been above 197* in stop and go traffic.
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Old Jul 14, 2008 | 12:26 PM
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Not too bad. Yesterday here in So. CA cruising the highway at about 80MPH in fifth gear , and temps outside was 95 degrees and a little hunid for CA. my water temp read 206 and oil read 234. I started to get nervous.
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Old Jul 14, 2008 | 12:31 PM
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I am having rims put on it tomorrow. Maybe I will have the guy change the thermostat for me as well.
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Old Jul 14, 2008 | 02:04 PM
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Originally Posted by renegad44
The fans are set through a tune/computer.

I'm running a 160t-stat and have a few bolt-ons, but my tuner has it set that I run 185* cruising on the highway in this Southern Mississippi heat, haven't been above 197* in stop and go traffic.
Me too
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