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Discussion Starter · #1 ·
I have an Auto Meter EGT Gauge and when the car is off it sits at 100ish. My EGT always seem to run high just going down the highway. I checked on Cindy's site and it shows one in the box sitting at 200ish.




But on the Auto Meter site it sits in the "good range" box



What's the deal?


-Thanks
 

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dodgez said:
I have an Auto Meter EGT Gauge and when the car is off it sits at 100ish. My EGT always seem to run high just going down the highway. I checked on Cindy's site and it shows one in the box sitting at 200ish.




But on the Auto Meter site it sits in the "good range" box



What's the deal?


-Thanks
It should sit at whatever temp the probe is currently at. If it is 75F outside and the probe is installed in a 'cold' manifold, it should read 75F.

Dale
 

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The truth of the matter is Autometer has very poor quality guages, no 2 the same, and very inaccurate. Most of the pros use them only because the offer good contingency money and they don't have to worry about the guages reading right-their stuff is already set to run. I would use a Wetach EGT or even a Greddy, when you see one of these work you will be amazed at how fast they react to even a small rev and how accurate they are. Westach new are even cheaper than and Autometer.
 

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Discussion Starter · #4 ·
Dale Seeley said:
It should sit at whatever temp the probe is currently at. If it is 75F outside and the probe is installed in a 'cold' manifold, it should read 75F.

Dale

How does it read the probe when there is no power?
 

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How do you know you EGTruns high on the highway?

How does it know? Cuz its a thermo probe. No matter if its powered or not, the probe knows the temp. The gauge neeeds power however to move the needle and display the reading.
 

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IRON MURT said:
It is a thermocouple, the power is only for the light in the guage.
seriously? :jester:

is yours like that? because mine isnt.
 

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dodgez said:
How does it read the probe when there is no power?
When installed properly, it would have power...

I do understand your question, you're looking at unpowered units and wondering if they should all sit at the same number.... That, I don't know, I always test my new gauges in an 'as installed' setup, temp and pressure.
 

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Discussion Starter · #9 ·
Dale Seeley said:
When installed properly, it would have power...

I do understand your question, you're looking at unpowered units and wondering if they should all sit at the same number.... That, I don't know, I always test my new gauges in an 'as installed' setup, temp and pressure.

When should it be sitting in the *Good* box?
 

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IRON MURT said:
It is a thermocouple, the power is only for the light in the guage.
Easy mistake, the thermocouple is indeed unpowered, the dissimilar metals produce different microvoltages for different temps depending on the choice of metals, but the equipment needed to interpret the voltage produced does require power. Well, at least in our reality it does, although it is possible that Greddy, Defi, and other makers have figured out out to use the microvolts produced by the thermocouple to power the displays and interpreting devices.

Dale
 

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Well I have never disconnected the power on my autometer egt(it was free so i used in a car i didn't need exact egt's) the ones I have used Westach,Greddy,and Trust all only use power for the the lights and features-westach doen't even come with a light unless you order, it so all you hook up is the thermocouple. Could be why autometer react so slow if they have to be powered to work. Seriously! :hi:
 

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Discussion Starter · #12 ·
IRON MURT said:
It is a thermocouple, the power is only for the light in the guage.

The guage is powered. The light that screws into the guage is also powered... but the guage has it's own power
 

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dodgez said:
When should it be sitting in the *Good* box?

The "good" box is really a misnomer (not to be confused with a missing gnome) and is meant to show a 'good range' for "zero".

It should sit in the 'good box' when the unit is powered and the probe is placed in a 0 F environment. It may sit there after the unit has been powered on, then turned off.
 

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Listen dude, dont worry with yout readings at cruise....do a search and compre it to ours. @80MPH it gets a lil eerie, but its NORMAL for srts.

Disclaimer: My probe is in the middle
 
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