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Old 04-21-2014, 02:44 PM   #1
cybercoaster

 
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160° Thermostat

Who has put in a 160° Thermostat and did it make that big of a difference? My ZL1 is currently stock and wanting it to run at least a little cooler this summer. Is it worth the effort and money (little cost on both ends). What does your temp usually run at after putting one in?
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Old 04-21-2014, 05:18 PM   #2
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Who has put in a 160° Thermostat and did it make that big of a difference? My ZL1 is currently stock and wanting it to run at least a little cooler this summer. Is it worth the effort and money (little cost on both ends). What does your temp usually run at after putting one in?
I Too Want To Change To 160 Degree Thermostat - I've Been Told It Will Trigger A Sensor If I Change
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Old 04-21-2014, 05:26 PM   #3
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Old 04-21-2014, 05:26 PM   #4
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I Too Want To Change To 160 Degree Thermostat - I've Been Told It Will Trigger A Sensor If I Change
I did it when I put my blower on. No sensor issues.
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Old 04-21-2014, 05:36 PM   #5
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My opinion is lower thermostats don't do much. It will make the car heat up slower but once it is open it won't be any different than a 180 or 190, or whatever stock is.
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Old 04-21-2014, 05:46 PM   #6
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Who has put in a 160° Thermostat and did it make that big of a difference? My ZL1 is currently stock and wanting it to run at least a little cooler this summer. Is it worth the effort and money (little cost on both ends). What does your temp usually run at after putting one in?
Stock thermostats are 185 degrees. GM's position is that this is the optimal temp for performance. You would be better off looking to get better cooling from your fans/radiator, since the thermostat only controls the lower temp, not the higher temps.
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Old 04-21-2014, 05:51 PM   #7
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I'm making 754 rwhp and kept the stock thermostat instead of the 160 degree.

It is not needed in these engines!!!
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Old 04-21-2014, 05:52 PM   #8
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My opinion is lower thermostats don't do much. It will make the car heat up slower but once it is open it won't be any different than a 180 or 190, or whatever stock is.
Quote:
Originally Posted by Apex Paul View Post
Stock thermostats are 185 degrees. GM's position is that this is the optimal temp for performance. You would be better off looking to get better cooling from your fans/radiator, since the thermostat only controls the lower temp, not the higher temps.
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I'm making 754 rwhp and kept the stock thermostat instead of the 160 degree.

It is not needed in these engines!!!
Agreed 100% to all.
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Old 04-21-2014, 07:06 PM   #9
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Mine came free with my CAI 4 years ago. I had it sitting here so I decided to toss it in when I had the top off my motor for the blower. On these cars I can say I have not noticed much of a difference. However, on my LT1 it was a noticeable difference. Also, when I had my mustangs back in the day they always seemed to make a difference.
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Old 04-21-2014, 07:35 PM   #10
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Good for 1/4 mile racing, but won't help you much on a road course. As already stated once it's open, it's open. Cheap enough mod though.
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Old 04-21-2014, 08:56 PM   #11
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All a 160 degre thermostat does it make the engine take longer to come up to temp. This increases engine wear since all the tolerances are off. Also reduced oil life, Fuel economy also suffers as does emissions.

If the motor never really comes up to temp (lots of short trips), It also causes acid and moisture to form in the oil leading to sludge which could lead to engine damage.

http://www.tuneruniversity.com/blog/...l-temperature/

http://www.bobistheoilguy.com/motor-oil-102/

Effects from low temp thermostats on engine and oil life:
http://www.bobistheoilguy.com/forums...t&Number=50382
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Old 04-21-2014, 09:03 PM   #12
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geez...not this topic again. The "160 thermostat" that is being sold is more like 178. In old small blocks it really meant 160°.
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Old 04-22-2014, 05:22 AM   #13
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geez...not this topic again. The "160 thermostat" that is being sold is more like 178. In old small blocks it really meant 160°.
it's actually not 178 it is 160, i have put an SLP one in a cook pot with a laser temperature sensor and it starts to crack open at about 152 and is near fully open at 160 at about 162 it is 100% open.

This is taking the temperature with the laser pointed directly at the thermostat on a hot plate in boiling water.

It also retracts and closes up in a similar fashion temperature wise.
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Old 04-23-2014, 12:47 PM   #14
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Thanks all
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