Cool down before shutting off?
Post Fiend
Joined: Sep 2003
Posts: 6,096
Likes: 26
From: Mesa AZ
did a rant couple of years back about EGT gauges and thermocouples in this forum. the slower reacting ones are probably shielded, fast reacting are "bare". CURIE point is only an issue when you are trying to ACCURATELY read 350+/ 50 degrees. BTW the charts say the junction is accurate to 0 degrees F, but the millivolts are so low you need amplification to measure. 1 to 2 % accuracy is a result of manufacturing processes for the gauge unit....
For comparison's sake...when I got in my F250 pickup this morning (ISSPRO gauges) and turned the key to the Wait To Start position the EGT gauge read about 80 degrees, which is very close to ambient. So, I presume ISSPRO is far more accurate, at least at the lower end of the range.
Post Fiend
Joined: Sep 2003
Posts: 6,096
Likes: 26
From: Mesa AZ
That is about the same as my truck with ISSPRO gauges. It will sit right around 200 ish until I actually start driving somewhere.
Posting Guru
Joined: Apr 2010
Posts: 1,112
Likes: 0
From: South Shore, MA
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