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Re: Thermostats
[Re: MoparforLife]
#329543
05/26/09 06:27 PM
05/26/09 06:27 PM
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Joined: Feb 2003
Posts: 874
El Cerrito, by San Francisco
last426
super stock
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super stock
Joined: Feb 2003
Posts: 874
El Cerrito, by San Francisco
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Quote:
I will tell you that if the engien wants to run at say 190 niether stat will stop it. It will run the temp it wants to run if that temp is above the stat rating.
If I understand what you are saying, I disagree. So long as there is an adequate radiator and flow, the thermostat should keep the temperature below what the "engine wants". Kim
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Re: Thermostats
[Re: last426]
#329544
05/26/09 06:33 PM
05/26/09 06:33 PM
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Joined: Jan 2003
Posts: 32,928
Grand Prairie,Texas
stumpy
I Win
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I Win
Joined: Jan 2003
Posts: 32,928
Grand Prairie,Texas
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The thermostat has absolutely no effect after the engine reaches the stats full opening temp which is what it's rated for. It can't lower the engine temp only raise it to it's rating. It's only job is to keep the water flow down until it hits a certian temp. Then the water flows freely through the stystem. The reason for using one is that engines are not efficient until they reach 180*.
Last edited by stumpy; 05/26/09 06:36 PM.
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Re: Thermostats
[Re: last426]
#329545
05/26/09 06:41 PM
05/26/09 06:41 PM
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Joined: Jan 2003
Posts: 25,200
Upper Midwest
MoparforLife
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,200
Upper Midwest
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Quote:
Quote:
I will tell you that if the engien wants to run at say 190 niether stat will stop it. It will run the temp it wants to run if that temp is above the stat rating.
If I understand what you are saying, I disagree. So long as there is an adequate radiator and flow, the thermostat should keep the temperature below what the "engine wants". Kim
Well you are wrong. The stat CANNOT control the temperature above its rating. The stat is in the system to maintain a cooling temperature no lower than the rating and to help the engine reach that temperature sooner than teh enign e would reach it with full circulation but if your enfine wants to run 200 degrees it will - even if you have a 160 stat in it.
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Re: Thermostats
[Re: MoparforLife]
#329546
05/26/09 06:52 PM
05/26/09 06:52 PM
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Joined: Nov 2008
Posts: 1,565
tennessee
pushbutton
pro stock
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pro stock
Joined: Nov 2008
Posts: 1,565
tennessee
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Quote:
Quote:
Quote:
I will tell you that if the engien wants to run at say 190 niether stat will stop it. It will run the temp it wants to run if that temp is above the stat rating.
If I understand what you are saying, I disagree. So long as there is an adequate radiator and flow, the thermostat should keep the temperature below what the "engine wants". Kim
Well you are wrong. The stat CANNOT control the temperature above its rating. The stat is in the system to maintain a cooling temperature no lower than the rating and to help the engine reach that temperature sooner than teh enign e would reach it with full circulation but if your enfine wants to run 200 degrees it will - even if you have a 160 stat in it.
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Re: Thermostats
[Re: MoparforLife]
#329547
05/26/09 09:28 PM
05/26/09 09:28 PM
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Joined: Feb 2003
Posts: 874
El Cerrito, by San Francisco
last426
super stock
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super stock
Joined: Feb 2003
Posts: 874
El Cerrito, by San Francisco
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Quote:
Quote:
Quote:
I will tell you that if the engien wants to run at say 190 niether stat will stop it. It will run the temp it wants to run if that temp is above the stat rating.
If I understand what you are saying, I disagree. So long as there is an adequate radiator and flow, the thermostat should keep the temperature below what the "engine wants". Kim
Well you are wrong. The stat CANNOT control the temperature above its rating. The stat is in the system to maintain a cooling temperature no lower than the rating and to help the engine reach that temperature sooner than teh enign e would reach it with full circulation but if your enfine wants to run 200 degrees it will - even if you have a 160 stat in it.
Of course a thermostat controls the top temperature. As I said, so long as there is an adequate radiator and flow, then the thermostat modulates to keep the temperature around its rating -- not higher. An engine would want to run several hundreds of degrees but for the cooling system and the thermostat. The modulation of the thermostat coupled with adequate flow and radiator keep the engine around its most efficient temp.
Assume you take the thermostat out. The temperature drops considerably, to the point of the heater not working. The temperature that is dropping is the top temperature.
I think where the confusion comes from is you're statement of "It will run the temp it wants to run if that temp is above the stat rating" when you actually mean that if it has an inadequate cooling system, a thermostat cannot make it run cooler. Kim
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Re: Thermostats
[Re: last426]
#329548
05/26/09 09:45 PM
05/26/09 09:45 PM
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Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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Do run the 180 instead of the 160 & maybe even a 195.
live every 24 hour block of time like it's your last day on earth
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Re: Thermostats
[Re: last426]
#329549
05/26/09 10:29 PM
05/26/09 10:29 PM
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Joined: Apr 2007
Posts: 807
Toronto, Canada
dirtybee
super stock
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super stock
Joined: Apr 2007
Posts: 807
Toronto, Canada
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Quote:
Quote:
Quote:
Quote:
I will tell you that if the engien wants to run at say 190 niether stat will stop it. It will run the temp it wants to run if that temp is above the stat rating.
If I understand what you are saying, I disagree. So long as there is an adequate radiator and flow, the thermostat should keep the temperature below what the "engine wants". Kim
Well you are wrong. The stat CANNOT control the temperature above its rating. The stat is in the system to maintain a cooling temperature no lower than the rating and to help the engine reach that temperature sooner than teh enign e would reach it with full circulation but if your enfine wants to run 200 degrees it will - even if you have a 160 stat in it.
Of course a thermostat controls the top temperature. As I said, so long as there is an adequate radiator and flow, then the thermostat modulates to keep the temperature around its rating -- not higher. An engine would want to run several hundreds of degrees but for the cooling system and the thermostat. The modulation of the thermostat coupled with adequate flow and radiator keep the engine around its most efficient temp.
Assume you take the thermostat out. The temperature drops considerably, to the point of the heater not working. The temperature that is dropping is the top temperature.
I think where the confusion comes from is you're statement of "It will run the temp it wants to run if that temp is above the stat rating" when you actually mean that if it has an inadequate cooling system, a thermostat cannot make it run cooler. Kim
ok 
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Re: Thermostats
[Re: last426]
#329550
05/26/09 10:32 PM
05/26/09 10:32 PM
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Joined: Jan 2003
Posts: 25,200
Upper Midwest
MoparforLife
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,200
Upper Midwest
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Quote:
"It will run the temp it wants to run if that temp is above the stat rating" when you actually mean that if it has an inadequate cooling system, a thermostat cannot make it run cooler. Kim
No I don't mean that! I mean that if that engine want to or has a tendancy to over heat don't be too quick to blame the stat. The only way a stat can cause an engine to over heat or run above the stat rating is if it is faulty. Something else is causing the problem like you say inadaquate cooling system for one reason or another being gunked up cooling passages in the engine or radiator core, bugs and dirt in the radiator fins blocking air flow, etc. or in a modified engine just plain flat not enough cooling system but it won't be the stat causing it. 
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