J.P. Instruments EDM 700/800/711 Pilots Guide User Manual
Page 21
For Your Safe Flight
Page 17
flash. You will notice that in some cases the TIT reads 100°F hotter
than the hottest EGT. This is caused by unburned fuel in the exhaust
and igniting.
The reduced size of the
JPI Hastaloy-X-tip probes produces faster
response and more accurate than the massive factory installed probe.
Therefore
JPI probes may read as much as 100°F higher than the
factory installed probe. However, note that the engine was certified with
the factory-installed probe and gauge, and this gauge reading is the
limiting factor when adjusting your engine.