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Discussion Starter #1
Hi guys, Now that it is getting warmer out there, ANY way we can keep underhood temps down is good. Cooler everything, makes a happier supercharged engine.

So i have some 160 thermostats ready and in stock for those of you guys that want them. $35 shipped to your door is all im going to charge for them.

Thanks Jes
 

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CTS-V 2009 White Diamond, 996TT Silver, G35 Coupe 6mt, M45S
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Is this something that is easily installed and keeps the fan going after I park the car?
Texas weather is the pits for heat! My porsche will turn on and off the fan until the engine compartment is cool enough.

Hans.
 

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cts v
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i think almost everyone would agree with what w4m said; so why don't cars come with 160 degree thermostats from the factory?
 

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Discussion Starter #4
No this is a physical valve that goes into your waterpump housing to allow for more water flow at cooler temps. It is a easy install, but only while the motor is cold. Hot coolant on the hands hurts. :) The cooler Running Fans are part of my tune. I can modify the program to target a 184 degree running temp instead of 194 i do with the stock thermostat.
 

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Please correct me if I'm wrong, but a 160 stat just means it opens sooner that say a 180. When the coolant temp hits 160 the stat will fully open allowing the coolant to start flowing instead of waiting for it to hit 180 degrees. Now once it is open, it will then stay open untill the
coolant drops below 160 degrees. So, on a summer day or anytime when the engine hits operating temp, the stat is open, and will
remain open. Therefor does changing a stat without programming the fans to come on early, really accomplish anything?

I can see it helping with your tune turning the fan on sooner.
 

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Discussion Starter #6
Stock is 194. While you are driving, the fans shut off after a set mph anyways, so then the air going thru the radiator will continue to be cooled and the engine will except that cooler water until the 160-170 mark is met and it starts to close itself. Any thermostat still allows some water to pass thru it, There are holes on the valve that allow that extra flow.

The advantage here is, Cooler temps at low speeds and idle, and alot more while moving. With or without a tune.

A tune Does however provide more cooling when acompanied by this mod as i can turn the fans on at 165 and keep cool air going thru the intercooler water core and radiator.
 

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Ordered CTS V - ordered 03/13 delivered 06/24!
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Thanks for the explanation. I'll put the 160 on my list after my car arrives! :)
 

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In answer to surgin's post, the drivetrain is designed to run at 185 - 205 degrees. The engine controls, sensors, and cooling accessories are calibrated for that setting. The old wives' tale is that running an engine cold is somehow going to "boost performance", which is very far from the truth. Yes, the engine runs colder: the fuel/air ratios are slightly richened to compensate for an engine which never warms up to design temps. The oil and engine metal remain below 200+ degrees, so the crankcase combustion byproduct volatile acids and condensation moisture never vaporize in order to be burned by the PCV system. Cylinder wall temps stay low, so there's more raw fuel to wash off lubrication. Automobile manufacturers have absolutely no idea how to design and run an engine, so we must make it better. We have learned exactly nothing in 126 years of engine building.

You can buy thermostats for $7.95 at NAPA. Any temperature you like. Any car you like. ("Yeah, but, Sub, How come boat engines run at 140 and 160 degrees ???" - "Because some boat engines are raw water cooled, and to run them at 205 causes incredible scale in the exhaust cooling systems. The fuel systems are designed accordingly and the crankcase ventilation systems are impressive."
 

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Discussion Starter #9
Sub, My car runs at 220 all the time in stock form. Also, while doing a full throttle run from idle to 180mph, Guess how high my coolant temps where at that point of letting off the gas?

The car is happiest at 175 degrees from what i have seen as is why i leave the fans to keep it near there.

As for a 7.95 thermostat at napa, What is the part number for the 2009?
 

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In answer to surgin's post, the drivetrain is designed to run at 185 - 205 degrees. The engine controls, sensors, and cooling accessories are calibrated for that setting. The old wives' tale is that running an engine cold is somehow going to "boost performance", which is very far from the truth. Yes, the engine runs colder: the fuel/air ratios are slightly richened to compensate for an engine which never warms up to design temps. The oil and engine metal remain below 200+ degrees, so the crankcase combustion byproduct volatile acids and condensation moisture never vaporize in order to be burned by the PCV system. Cylinder wall temps stay low, so there's more raw fuel to wash off lubrication. Automobile manufacturers have absolutely no idea how to design and run an engine, so we must make it better. We have learned exactly nothing in 126 years of engine building.

You can buy thermostats for $7.95 at NAPA. Any temperature you like. Any car you like. ("Yeah, but, Sub, How come boat engines run at 140 and 160 degrees ???" - "Because some boat engines are raw water cooled, and to run them at 205 causes incredible scale in the exhaust cooling systems. The fuel systems are designed accordingly and the crankcase ventilation systems are impressive."
Maybe i am not reading this right, but seems he is saying its not good to run the lower temps.... what am i missing? seems when i run my vehicle it runs best the first 10-15 miles after start up.
 

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I always find it so funny how the debate over cooler thermostats keeps raging on. YOu either want one or not and they are now available. Awesome Jesse, I definitely want one.
I can tell you, it was found on the C6 Z06 that after a certain coolant temp, the ecm starts pulling timing and fuel and what ever else it does to keep the engine safe. By replacing stat with 160 unit, on the highway I would see cruise temps of 172 or 174. At idle I had the tune turn the fans on sooner so it would run cooler there as well. So, does a cooler stat directly make the car faster? NO. But does it indirectly? YES. Because the ecm won't start making the engine run safer because the engine is not getting too hot.

Thanks for listening,
Mark
 

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Hey Jesse...
If you haven't already shipped out the NEW exhaust, could you throw a t-stat in there and tell me how much to send via paypal since that little thing won't have any shipping charges if it comes with exhaust?

Thanks,
Mark
 

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Yes me too please! Jesse, If you haven't already sent my Tune, Can you add your full 3" exhaust to the 4" massive tips and the 160 Thermostat please. You can send me a new bill by email please?

BTW how is the tune installed does it come with a programmer?

Cant wait for the pulley and intake!!!!:bouncy:

Send to [email protected]

Thanks Buddy
 

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I always find it so funny how the debate over cooler thermostats keeps raging on. YOu either want one or not and they are now available. Awesome Jesse, I definitely want one.
I can tell you, it was found on the C6 Z06 that after a certain coolant temp, the ecm starts pulling timing and fuel and what ever else it does to keep the engine safe. By replacing stat with 160 unit, on the highway I would see cruise temps of 172 or 174. At idle I had the tune turn the fans on sooner so it would run cooler there as well. So, does a cooler stat directly make the car faster? NO. But does it indirectly? YES. Because the ecm won't start making the engine run safer because the engine is not getting too hot.

Thanks for listening,
Mark
Mark,

I understand the concept, however if that is the case, why don't they put
in a 160 Stat from the factory? Once it is open fully and the fans engaged,
it should no longer come into play unless the engine needs to warm up again.

I must be missing something, I admit my knowledge in this area is limited,
but I have always heard that cooler is better. In fact in my younger days
I recall taking out the stat in my 327 - 65 Nova in the summer. We ran
no stat in the summer and replaced in the fall when we wanted heat!
 

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^ You can thank the epa/emissions standard for not putting in a cooler tstat in from the factory. It all has to do with emissions and not performance.
 

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Discussion Starter #17
^ You can thank the epa/emissions standard for not putting in a cooler tstat in from the factory. It all has to do with emissions and not performance.


Correct.
Hotter car = cleaner.
 

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cts v
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thanks razorecko. i believe your explanation. sub makes some good points but i believe not everything car engineers do is for our benefit, they have to make compromises to meet epa/fed regulations.
so,... wait4me can you add the thermostat to the intake,handheld and exhaust i ordered this week or has it shipped? (yeah this last part was just bragging!!!)
 

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Discussion Starter #19
Yes i can throw one in for you Surgin. Im still waiting on the part number for the napa tstat, so then everyone can get them for 7.95.. It cheapest i have seen was 30 plus shipping. So i bought 10 of them to save on shipping. Then sellin them to you guys for the same price.
 
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