Excellent, I was questioning AEM egt probe size and longevity.
Actually Analod device making termocouple conditioner chip AD597 which directly connects to termocouple, will work with 13v directly for upto 1000C and will provide linear output and it is cheap too. EGT K type sensors are pretty cheap, you can probably buy lot of 4 on ebay for 60$.
My AEM is on its way and that would be a good time to experiment with EGT on stock engine setup.
I just wasnot sure if AEM allows to select other ports to use as EGT input.
thank you.
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Originally Posted by Renner
Yes, I have done this just the way you are saying. I used a normal K-type thermocouple with a liner 0-5 output box that I purchased through Omega. I then used a spare 0-5 volt input channel on the AEM box. You can assign the EGT voltage input to look at a different input channel then the normal RTD channels, although off the top of my head I forget which one I used.
You then input the calibration curve for the thermocouple output box for the EGT channel, this is where having a linear output box makes things easy. These boxes can be purchased ready to go, but their cost makes it not really economical compared to just buying the regular AEM EGT sensor. I was using this in an application where I had to use a very small thermocouple since space was limited, so I had no choice since the AEM EGT was too large.
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