Here's a link to a fairly long thread:

http://canardaviationforum.dmt.net/showthread.php?t=2058&page=5&pp=15
<http://canardaviationforum.dmt.net/showthread.php?t=2058&page=5&pp=15>


I have no idea what is going on Matt. According to Francois
the unburned hydrocarbons are burning in the exhaust
manifold and or the turbo. Perhaps the RX8 engine might
be a better choice as it supposedly recycles unburned fuel
with a cooler exhaust. Francois is doing some  turbine blade
temperature test by painting the turbine blades with special
paint.

To really know what is going on the intake air temp should
be monitored and the engine leaned over a wide range measuring
the mixture ratio with a wide band mixture monitor to see
what effect this has on TIT. In other words get data on
TIT verses mixture ratio. Could be when leaned properly
with a a cool intake charge to discourage detonation  or
even anti detonation fluid injected  the  data
will show the TIT coming down with a leaned mixture.

On the other hand 1800 F may be no problem for an Inconel
turbine at modest RPMs. Does John have an Inconel turbine?
One needs to know the RPM of the turbine as that has a serious
affect on the life of a turbine blade due to centrifugal force.

Paul Lamar ...No rotor no motor.

Hi Matt, where's your EGT probe mounted?

B

Brian, according to John's post about this turbo, about which Matt was
questioning, John's EGT probe is mounted in the exhaust pipe 2 inches after
the turbine.

Barry Gardner
Wheaton, IL




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