Thermostat experiment - Chevy Impala SS Forum
 
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post #1 of 9 (permalink) Old 05-27-2015, 06:29 PM Thread Starter
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Thermostat experiment

Since having a few thermostats I decided to test them. Not only if the work,or not. But,comparing them to each other as well. Scratching a line about 1/4" below each of the flanges does make slight differences between them easier to see. A medium size saucepan filled with water,and a length of semi-stiff wire suspends them. An instant read thermometer can be helpful,but not required. Sure enough one of them (both 160 stats.) opened faster,and further than the other. Also noticed Jeg's sells the LT1 thermostat seal separately (#53281),and it's nice to have a couple new ones on hand. My late model C/K pick-up uses the same style stat,and I''l probably repeat this experiment later in the season.

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post #2 of 9 (permalink) Old 05-27-2015, 09:43 PM Thread Starter
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Thermostat experiment

The two had slight differences in design that I saw. I installed the one that opened faster/further,but still found the differences in design interesting. Maybe,the one I chose was a newer model of the same stat.

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post #3 of 9 (permalink) Old 05-28-2015, 06:44 PM
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post #4 of 9 (permalink) Old 05-28-2015, 09:39 PM Thread Starter
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Thermostat experiment

Didn't experiment with the effect of drilling a hole in the perimeter. Though I've drilled a 3/16" hole in the outer portion of thermostats years ago mostly to make the system easier to fill. I was surprised that Jeg's sold the thermostat seals actually....Would restrictors even work on these cars?

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post #5 of 9 (permalink) Old 05-28-2015, 11:04 PM
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I bought a 160* Hypertech t-stat last year and it came with a bleed hole already in the t-stat with a little "wiggle thingy" in the hole. The t-stat by the way was a motorad brand.

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post #6 of 9 (permalink) Old 05-28-2015, 11:10 PM Thread Starter
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Thermostat experiment

Not sure how effective that thing is. The holes I've seen done were always on the outer perimeter...

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post #7 of 9 (permalink) Old 05-28-2015, 11:30 PM
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Quote:
Originally Posted by 4x4high View Post
I bought a 160* Hypertech t-stat last year and it came with a bleed hole already in the t-stat with a little "wiggle thingy" in the hole. The t-stat by the way was a motorad brand.
The "wiggle thing" is called the air bleed.
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post #8 of 9 (permalink) Old 05-29-2015, 01:19 AM
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Quote:
Originally Posted by Marky Dissod View Post
Also, who BESIDES MotoRad makes a 160F thermostat? Thought that MotoRad made 160F tstats on behalf of HyperTech.
What other brands are available?
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post #9 of 9 (permalink) Old 05-29-2015, 11:08 AM
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Would restrictors even work on these cars?
You'd have to ask one of the former gurus that has since tired of the ISSF.
the handle 'stonebreaker' comes to mind

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