T stat??????? - Team Camaro Tech
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post #1 of 12 (permalink) Old Jun 13th, 10, 08:18 PM Thread Starter
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Chris
 
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T stat???????

I recently installed a new radiator with electric fans and a 190 degree temp sender. I am running a 195 Tstat and my question is it don't reach 195 to open it up because the fans kick on and cools instantly. So should this be a concern? Should I run a smaller Tstat?


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post #2 of 12 (permalink) Old Jun 14th, 10, 12:41 PM
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Re: T stat???????

So you are saying your engine temprature never gets over 195? Where is the probe for your gauge? Sounds like a good problem to have to me!

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post #3 of 12 (permalink) Old Jun 14th, 10, 12:53 PM Thread Starter
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Re: T stat???????

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Originally Posted by Greg O View Post
So you are saying your engine temprature never gets over 195? Where is the probe for your gauge? Sounds like a good problem to have to me!
I am running the probe in the intake right next to the water neck. I am running a air gap intake so it has two spots available one for temp sender and another for temp gauge. Yeah I guess i am happy its running nice and cool but just worried that the tstat don't get a chance to open.
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post #4 of 12 (permalink) Old Jun 14th, 10, 01:03 PM
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Re: T stat???????

It sounds as if you have a similar set up to mine. But I have my sensors located in my air gap manifold. I was running a cooler stat at first. But after doing more researches I found out that it is better to run the higher stat so that you can get your engine up to a higher temp. The reason being to help burn off the contaminents which won't happen if the engine can't get hot enough. And at 195* you are good and it is not to hot. I don't think mine even gets that hot. I don't think you have any worries where you are at.
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post #5 of 12 (permalink) Old Jun 14th, 10, 01:04 PM
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Re: T stat???????

If the stat never opens, the water in the engine will just get hotter and hotter. Cooling the radiator won't do anything, right?

It's running well, so it sounds like it is opening and working fine to me.

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post #6 of 12 (permalink) Old Jun 14th, 10, 01:09 PM Thread Starter
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Re: T stat???????

The fans kick on at 193 (according to the gauge) and cools right down to 190. temp gauge is before the water neck and the sensor is after the water neck so the temp must be close to accurate? I am also running a csi electric water pump. I have a concern that my top radiator hose is always got full pressure in it.
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post #7 of 12 (permalink) Old Jun 14th, 10, 02:13 PM
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Re: T stat???????

Most stats start to open before there Temp.. Most t-stat will start to open before its set temp and should be fully open by 195...The fan sensor should be as far away from the return as possible....
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post #8 of 12 (permalink) Old Jun 14th, 10, 06:16 PM
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Re: T stat???????

Some truth about the fan sensor. It should be installed close to the w/pump supply (bottom radiator) hose.

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post #9 of 12 (permalink) Old Jun 15th, 10, 07:24 AM
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Re: T stat???????

what car, engine, year? More info. can help.

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post #10 of 12 (permalink) Old Jun 15th, 10, 07:40 AM Thread Starter
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Re: T stat???????

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what car, engine, year? More info. can help.

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post #11 of 12 (permalink) Old Jun 15th, 10, 06:16 PM
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Re: T stat???????

Couple of things.
No sense turning on elec fans when not reqd.
Typically a fan coolant sensor will have an internal on/off temp.
If you have an efficient coolant system and a 195* stat..the fans should only be reqd when forward vehicle motion is low or at idle rpm.
In your case..I would go with a 200 on/185 off.

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post #12 of 12 (permalink) Old Jun 15th, 10, 06:31 PM
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Re: T stat???????

What part number pump and thermostat? I mistakenly put a thermostat made for a blocked bypass pump in my car once and it took f-o-r-e-v-e-r to warm up. Those stats flow enough so water is continually pulled through the engine without the thermostat actually opening.

How cool your fan can keep your radiator should have no effect on when the thermostat opens or closes. Your thermostat should regulate your engine temperature, not the other way around. It should start to open at 195 and be fully open by 210.

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