Where should the engine temp needle be?
#1
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Where should the engine temp needle be?
I noticed my engine needle just stay below the half way mark when the car is fully warm up and running. Is that typical?
Is there any simple upgrade to have the engine running cooler?
Is there any simple upgrade to have the engine running cooler?
#2
That is where it is suposed to be.
You would not want to make your engine run cooler. Engines are designed to be most efficient around a certain temperature. If your needle is where it says it is, it is operating around this designed temperature. That is the reason they invented thermostats.
The number is not arbitrary and is not meant to be changed.
You would not want to make your engine run cooler. Engines are designed to be most efficient around a certain temperature. If your needle is where it says it is, it is operating around this designed temperature. That is the reason they invented thermostats.
The number is not arbitrary and is not meant to be changed.
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Re: Where should the engine temp needle be?
Originally posted by hchhon
I noticed my engine needle just stay below the half way mark when the car is fully warm up and running. Is that typical?
Is there any simple upgrade to have the engine running cooler?
I noticed my engine needle just stay below the half way mark when the car is fully warm up and running. Is that typical?
Is there any simple upgrade to have the engine running cooler?
I heard that when the needle is at C mark. The engine is running at least 156 degrees F.
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You could add readline product called waterwetter to the radiator. Add an oil cooler. Run NOS
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#4
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Re: Re: Where should the engine temp needle be?
Originally posted by Bitium
That's about right. The needle should be below the half way mark.
I heard that when the needle is at C mark. The engine is running at least 156 degrees F.
That's about right. The needle should be below the half way mark.
I heard that when the needle is at C mark. The engine is running at least 156 degrees F.
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#8
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All you need to know about cooling CLICK HERE
#9
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Oh please that temp gauge has about as much relevance as Altezzas...![Roll Eyes](https://acurazine.com/forums/images/smilies/rolleyes.gif)
Faced with the prospect of hordes of owners running to the dealer as soon as the needle rises above halfway, OEM's make that temp sensor so vague that a halfway reading could read anywhere from 250 to 500 degrees! You can't honestly tell me there is no temp change when the car is sitting in 100 degree sun with the A/C on full blast!!!
Due to the horrible hangover of bad 70's car customers think that a temp gauge that does not move is a sign of a well-built car. If you take actual coolant temp readings you would freak out...
![Roll Eyes](https://acurazine.com/forums/images/smilies/rolleyes.gif)
Faced with the prospect of hordes of owners running to the dealer as soon as the needle rises above halfway, OEM's make that temp sensor so vague that a halfway reading could read anywhere from 250 to 500 degrees! You can't honestly tell me there is no temp change when the car is sitting in 100 degree sun with the A/C on full blast!!!
Due to the horrible hangover of bad 70's car customers think that a temp gauge that does not move is a sign of a well-built car. If you take actual coolant temp readings you would freak out...
![Roll Eyes](https://acurazine.com/forums/images/smilies/rolleyes.gif)
#10
Originally posted by TuRb0MiKeY
...If you take actual coolant temp readings you would freak out...
...If you take actual coolant temp readings you would freak out...
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#11
Originally posted by TuRb0MiKeY
OEM's make that temp sensor so vague that a halfway reading could read anywhere from 250 to 500 degrees! You can't honestly tell me there is no temp change when the car is sitting in 100 degree sun with the A/C on full blast!!!
OEM's make that temp sensor so vague that a halfway reading could read anywhere from 250 to 500 degrees! You can't honestly tell me there is no temp change when the car is sitting in 100 degree sun with the A/C on full blast!!!
I don't understand why the concept of a relatively stable engine temperature is so hard to grasp? Doesn't it make sense that there is a source of heat (engine) and a source of heat dissappation (coolant, radiator, fan, air currents) and given the two which is strictly regulated by both electrical and mechanical measures, that a stable temperature can be achieved?
When your engine is running a more intense load and generating more heat, the coolant flow rate increases to counteract the heating. Certainly, there can exist a point when heat production exceeds heat dissappation, but that should not occur in a well designed modern engine and cooling system driving under even harsh conditions. I have been in 110 degree heat, climbing a 4,000 foot mountain, travelling around 70mph, with the a/c on, and no overheating.
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Originally posted by bebber
When your engine is running a more intense load and generating more heat, the coolant flow rate increases to counteract the heating. Certainly, there can exist a point when heat production exceeds heat dissappation, but that should not occur in a well designed modern engine and cooling system driving under even harsh conditions.
When your engine is running a more intense load and generating more heat, the coolant flow rate increases to counteract the heating. Certainly, there can exist a point when heat production exceeds heat dissappation, but that should not occur in a well designed modern engine and cooling system driving under even harsh conditions.
#15
Originally posted by TuRb0MiKeY
If you take actual coolant temp readings you would freak out...
If you take actual coolant temp readings you would freak out...
Originally posted by TuRb0MiKeY
Get a clue i didnt say the car would overheat i said the temp gauge was horribly vague and inaccurate...fool.
Get a clue i didnt say the car would overheat i said the temp gauge was horribly vague and inaccurate...fool.
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#16
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Originally posted by bebber
Please observe forum ettiquette. Allow me also to humbly suggest that you keep your comments pertinent to the topic of discussion and refrain from further personal attacks. Calling someone of whom you know very little about a "fool" does nothing but insult your own intelligence.
Please observe forum ettiquette. Allow me also to humbly suggest that you keep your comments pertinent to the topic of discussion and refrain from further personal attacks. Calling someone of whom you know very little about a "fool" does nothing but insult your own intelligence.
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#17
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Originally posted by TuRb0MiKeY
Get a clue i didnt say the car would overheat i said the temp gauge was horribly vague and inaccurate...fool
Get a clue i didnt say the car would overheat i said the temp gauge was horribly vague and inaccurate...fool
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#18
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Originally posted by bebber
Your original statement certainly implies that you believe that the car reaches dangerously high temperatures. I am merely responding to your misinformed post.
Please observe forum ettiquette. Allow me also to humbly suggest that you keep your comments pertinent to the topic of discussion and refrain from further personal attacks. Calling someone of whom you know very little about a "fool" does nothing but insult your own intelligence.
Your original statement certainly implies that you believe that the car reaches dangerously high temperatures. I am merely responding to your misinformed post.
Please observe forum ettiquette. Allow me also to humbly suggest that you keep your comments pertinent to the topic of discussion and refrain from further personal attacks. Calling someone of whom you know very little about a "fool" does nothing but insult your own intelligence.
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I will also not so humbly suggest you stop talking like a lil biatch.
#19
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Originally posted by TuRb0MiKeY
Ok pay attention REAL carefully because I will only explain it to you one more time. Follow along with this hypothetical situation..Run ur car to full operating temperature..take a coolant temp, then park in boling sun and run ur A/C to max, take another coolant temp. Observe the difference in coolant temp from the two readings and then notice (of course) that the needle has NOT moved on the gauge.Isn't this lack of information something to be ticked off about (or freaked out).
Ok pay attention REAL carefully because I will only explain it to you one more time. Follow along with this hypothetical situation..Run ur car to full operating temperature..take a coolant temp, then park in boling sun and run ur A/C to max, take another coolant temp. Observe the difference in coolant temp from the two readings and then notice (of course) that the needle has NOT moved on the gauge.Isn't this lack of information something to be ticked off about (or freaked out).
If the thermostat is doing its job, then the coolant temperature will be the same regardless of the ambient temperature (up to the operating limits of the car).
I will also not so humbly suggest you stop talking like a lil biatch.
#20
Originally posted by TuRb0MiKeY
I will also not so humbly suggest you stop talking like a lil biatch.
I will also not so humbly suggest you stop talking like a lil biatch.
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#21
turbo, the tempature would not change much. They put those 2 little fans behind the radiator for times like you discuss. Those fans run when you are parked to let air through the radiator. The are triggered by a temperature sensor. As long as it isn't 150 degrees the temp would not change much. Obviously a thermostat isn't exact, so the temp always fluctuates a 5-10 degrees.
I can't believe we are still discussing such a simple subject.
I can't believe we are still discussing such a simple subject.
#22
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FAKE GAUGES
In the April issue of SCC on page 18 under Technobabble there is an article talkinga bout most modern gauges are useless because of paranoid owners will run to their dealerships at the slightest movement of a gauge. it also says that few temperature, oil pressure or even boost gauges are calibrated. i'm sure that the aftermarket gauges are the real deal of course. but i do wonder how many upper class automobiles actually do this with their gauges. i can't imagine Mercedes Benz doing this but from what this article says, i guess you never know. The article even talks about tach's being off. just thought i'd throw in my 2¢ on the subject
howard
howard
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IXLR8TL3.2:
As an embedded systems engineer, I wouldn't hesitate putting in a "dead zone" around the normal temperature range, where normal variations in engine temperature won't budge the needle at all.
This reduces service calls and gives the impression that the car has tighter tolerances than it actually does.
Most people don't understand that there is usually a range of acceptable values for any engine parameter, and any slight movement in a gauge doesn't necessarily indicate a problem.
Good thing modern cars don't have the battery voltage/current draw gauge that older cars do. Can you imagine the number of service calls that gauge would generate?
As an embedded systems engineer, I wouldn't hesitate putting in a "dead zone" around the normal temperature range, where normal variations in engine temperature won't budge the needle at all.
This reduces service calls and gives the impression that the car has tighter tolerances than it actually does.
Most people don't understand that there is usually a range of acceptable values for any engine parameter, and any slight movement in a gauge doesn't necessarily indicate a problem.
Good thing modern cars don't have the battery voltage/current draw gauge that older cars do. Can you imagine the number of service calls that gauge would generate?
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Re: Re: Re: Where should the engine temp needle be?
Originally posted by ElegantTL
wow! i wonder what the temp reading is the car is fully warmed up!
wow! i wonder what the temp reading is the car is fully warmed up!
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#26
but guys, even when you idle with AC on, keep in mind that those 2 large electric fans run and the system circulates the coolant.
And to make the car operate at lower temp, get lower reading fan switch and remove the thermostat from the house.
And to make the car operate at lower temp, get lower reading fan switch and remove the thermostat from the house.
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