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180 Degree Thermostat

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Old Jun 16, 2011 | 05:56 PM
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Default 180 Degree Thermostat

Has anyone changed their thermostat to 180. Its hot here in Texas I was woundering if it would have any real benefit. I found this one:

http://marylandspeed.com/jet-180-deg...83-p-1095.html
 
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Old Jun 16, 2011 | 06:09 PM
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That t-stat does not operate any differently than any other t-stat.

Why would you want to change the temp your engine runs at, when it's designed to run at 195?????

If you really just have to have a 180 degree t-stat - go to any auto parts store and buy one for 1/5 of the cost. They all work the same............

Personally, I wouldn't do it!
 

Last edited by WNDERR; Jun 16, 2011 at 06:12 PM.
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Old Jun 17, 2011 | 08:44 PM
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This is what will happen if you put a 180 degree thermostat in your truck.

The thermostat will open early, go thru a couple cycles of open and close while holding 180F. About 10min after startup the coolant temperature starts to creep up. Now the thermostat will just stay open and it will equalize around 195-205F coolant temperature (when it's 80F outside). Your fuel pressure will be around 30psi when your coolant temperature is at 180F. When you engine coolant gets closer to 195F it will increase to about 40-42psi.

When the outside temperature is about 55F-60F the truck will hold 180F coolant temperature while in the city and highway. It also seems to run rich and get bad gas mileage. The exhaust tips get a lot of carbon sout on them.
 
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Old Jun 18, 2011 | 12:51 AM
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Believe it or not, HEMI`s actually run alot better when hotter. Leave the stock factory T-stat in it.
The 180 stat is not the way to go. You`ll change the way the engines runs if you do.
If it ain`t broke, DONT try to fix it...!
 
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Old Jun 18, 2011 | 02:58 PM
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......................................
 

Last edited by BlackRamHemi; Jun 21, 2011 at 02:36 PM.
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Old Jun 18, 2011 | 09:25 PM
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The cooler stat will also help to keep the engine out of detonation under heavy loading. Your tuner will be able to add more timing without running into detonation with a cooler operating temp which=more power.
 
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Old Jun 19, 2011 | 01:36 AM
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oh chit, here we go, the T-stat police have arrived....lol.
Just a guess here, but i dont think the original person that started this post has mods like some of you guys that claim the 180 t-stat gives you great benefits over the factory stock t-stat`s. So until the original poster gives the specs on his truck, i will assume its bone stock, and installing a 180 degree t-stat isnt the smartest thing to do to your stock hemi, and if it was, then why didnt it come with a 180 t-stat to start with.
 
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Old Jun 19, 2011 | 01:42 AM
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Originally Posted by texasRam903
Has anyone changed their thermostat to 180. Its hot here in Texas I was woundering if it would have any real benefit. I found this one:

http://marylandspeed.com/jet-180-deg...83-p-1095.html
You need to be specific on what your truck is.
What mods have you done to your truck (???)
 
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Old Jun 19, 2011 | 10:21 AM
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Originally Posted by LU229
oh chit, here we go, the T-stat police have arrived....lol.
Just a guess here, but i dont think the original person that started this post has mods like some of you guys that claim the 180 t-stat gives you great benefits over the factory stock t-stat`s. So until the original poster gives the specs on his truck, i will assume its bone stock, and installing a 180 degree t-stat isnt the smartest thing to do to your stock hemi, and if it was, then why didnt it come with a 180 t-stat to start with.
Good post - if anyone thinks that the engineers at Chrysler wouldn't have done this, to improve horsepower, performance, mileage, longevity, etc; they had better think this over again. Long and hard!

Anything this cheap (a no cost option when new) would have been done automatically - for all those purported gains......
 
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Old Jun 19, 2011 | 01:06 PM
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Chrysler installs a 195 t-stat for one reason and one reason only-for emissions purposes! A hotter running engine puts out less emissions. However, all serious tuners, no matter what brand of vehicle, alway use lower temp t-stats to pull out every last bit of power.
 
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