Ceramic Coatings and EGT

[Gary Derian]

If your exhaust temps went down as rpm went up, it is a good indication that
you were detonating.  As long as temps are going up you're OK.  This is one
of the key tuning factors in 2 stroke racing engines.  I would expect it to
hold true for other types as well.

Gary Derian <gderian at oh.verio.com>

<snip>
>At idle, our radical twin-turbo Buick V6 displayed 1100-1200
>deg, typically towards the higher side, and at much higher
>RPMs the temperature actually went down 50-100 degrees.
<snip>
>Frederic Breitwieser