Cooling Question

N

NissanGuyB14

Member
so i had my uncle came over to just take a look at my car to double check and make sure every thing is good. he brought to my attention about my cooling fans(altima fans) and i told him that i wanted them to run constantly on high, he told me if i did that the car would not get to running temps and the thremostat would never open, any ideas or thoughts

car is a 92 240 ka24de


thank you
 
Michael.Timz said:
no matter how good your fans are, they aren't gonna stop the engine from getting to it's running temperature.
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Actually, with a large enough radiator, and a serious fan(s) with out a thermostat the engine actually wont get to operating temperature. On the other hand if you are running a thermostat you dont have to worry about that.

While the thermostat is closed it dose not allow coolant to circulate through the engine. This allows the coolant that is in the block and the head to heat up. Once the engine coolant heats up to the temperature where the thermostat opens it allows a little bit of coolant flow through the engine to maintain 180*. The thermostat regulates engine temperature, and allows the engine to reach operating temperatures. If you did not have a thermostat, you might be concerned about your engine not warming up, or over heating depending on the setup. You wont have a problem running your fans all the time if you have a thermostat that works.
 
SAS said:
i run both my fans at full blast all the time works great.
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Do you run a thermostat? Do you have an accurate water temperature gauge to tell you what your temp is other then C or H. What engine is this on? What fans are you using?

^^ Do you see how your reply could mislead the thread starter?
 
240SicknessX said:
Actually, with a large enough radiator, and a serious fan(s) with out a thermostat the engine actually wont get to operating temperature. On the other hand if you are running a thermostat you dont have to worry about that.

While the thermostat is closed it dose not allow coolant to circulate through the engine. This allows the coolant that is in the block and the head to heat up. Once the engine coolant heats up to the temperature where the thermostat opens it allows a little bit of coolant flow through the engine to maintain 180*. The thermostat regulates engine temperature, and allows the engine to reach operating temperatures. If you did not have a thermostat, you might be concerned about your engine not warming up, or over heating depending on the setup. You wont have a problem running your fans all the time if you have a thermostat that works.
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+1... I wasn't gonna go into detail like that but he hit the spot...
 
240SicknessX said:
Actually, with a large enough radiator, and a serious fan(s) with out a thermostat the engine actually wont get to operating temperature. On the other hand if you are running a thermostat you dont have to worry about that.
Click to expand...

Man I used to have trouble getting up to operating temps when i had a koyo and 14" permacoool but that was only after I switched to a water/water wetter combo. That shit really works. Oi and I had a nismo thermo.
 
240SicknessX said:
Actually, with a large enough radiator, and a serious fan(s) with out a thermostat the engine actually wont get to operating temperature. On the other hand if you are running a thermostat you dont have to worry about that.
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he implied in the first post that he had a thermostat.


and if you run no thermostat with a large radiator and serious fans, not reaching
operating temps really isn't a problem.. the less heat the better
 
its a stock radiator, with dual(altima) fans,i think my uncles whole thig was that maybe components need the motor to get to running temp to close circuits and operate normal

on another note iv been doing some homework searching for options to control the fans to go on and off, heres what i found

i found a sensor that will send a signal at 200 degrees and will shut off the fans at 180, a stock thermostat opens up at 195 so im thinking this might be my choice, you would hook this up to the relay already powering the fans and when the temp hits 200 degrees the fans will kick on when its back down to 180 the fans will shut off, aside from the sensor im going to add a switch to turn the fans on manually if desired

http://65.109.249.14/mm5/merchant.mvc?S ... -Relay-Kit
 
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Tonymac said:
Yeah but it doesn't matter because he referenced YOUR post which was completely flase
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no it wasn't.

he said what fans he was using..didn't say what radiator (i assumed it was stock, and i was right) and implied he had a thermostat.


in that situation, his fans are not going to stop him from getting to running temperature.
which is exactly what i told him; but i was completely false because ... oh, you didn't give a reason.

PS: i'm not gonna argue, i came here to give this guy information that he wanted.
 
Your statement in general was false which is what rick was referencing. This is not complicated. You may feel comfortable making assumptions but anyone with a more thorough knowledge of the subject will not assume anything. Instead, they will offer information on the subject, not statements that may or may not apply - which is what rick did.
 
Tonymac said:
Your statement in general was false which is what rick was referencing. This is not complicated. You may feel comfortable making assumptions but anyone with a more thorough knowledge of the subject will not assume anything. Instead, they will offer information on the subject, not statements that may or may not apply - which is what rick did.
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so was my post completely false, or are you pointing out that i made an assumption (that turned out to be right)?

either way, you're not helping this guy
 
I shouldn't have said anything. :rolleyes:

Um like i said, already, which you quoted, this isn't hard. Rick was referencing your original post which, as a general statement - in other words, sans your hidden assumptions and lack of clarity - and in regard to both posts (ie yours and rick's), you were wrong and he was right. If you want me to say that what you said was correct, fine - given the future knowledge of which you had no idea of initially, what you said has potential to be correct. Either way, your second bit of amazing knowledge was complete, total, unadulterated bull shit and made you look like a tool anyway.

Now, Mr. ps I'm not gonna argue, stop with the bs in the technical section and don't start anymore pointless arguments while trying to save face. :)
 
NissanGuyB14 said:
i found a sensor that will send a signal at 200 degrees and will shut off the fans at 180, a stock thermostat opens up at 195 so im thinking this might be my choice, you would hook this up to the relay already powering the fans and when the temp hits 200 degrees the fans will kick on when its back down to 180 the fans will shut off, aside from the sensor im going to add a switch to turn the fans on manually if desired

http://65.109.249.14/mm5/merchant.mvc?S ... -Relay-Kit
Click to expand...

Yes you can find a Electric thermo switch to turn your fans on at a certain temperature. They are readily available at advanced auto parts stores for around 34 dollars. For calibration with factory temperature gauge id say wait until the water temp has moved 1\2 the swept distance of where operating temperature is. If you have a real water temperature gauge, turn em on at 150. Factory Nissan 240sx thermostat opens at 180*F.

I would never run an engine hard if its not up to operating temperature.

If you dont know, dont post a reply in the technical section.
 
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