??? #43004 ?????? ?????? lml@lancaironline.net
??????: Walter Atkinson <walter@advancedpilot.com>
????????: <marv@lancaironline.net>
???????: Re: [LML] Re: TIT probes
????: Tue, 10 Jul 2007 11:40:27 -0400
?????: <lml@lancaironline.net>
While that's true, the EGTs will also be higher from the lower compression ratios and the higher IATs.

Walter


On Jul 9, 2007, at 8:03 PM, marv@lancair.net wrote:

There are second and third reasons why the TIT is typically
higher than the open-pipe EGT. The lower compression ratio
with the turbo engine means that the combustion gases have
expanded (and cooled) less than in the normally-aspirated
engine. Also, the turbo engine may have had a higher intake
gas temperature (and pressure) before compression and combustion.

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