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Message
I left
my clipboard in the plane and I know there was some old temp readings from last
year written down. I had planned to record a bunch this time, but was just to
busy enjoying flying again and concentrating on night circuits, so as long as
the big red light wasn't flashing telling me something was out of alarm
parameters, I didn't spend allot of time on anything but the EM2's front
page.
However I can confirm that there was
a very large delta T across the turbo, and that the temp drop before the turbo
is approx. 50F/inch. I have thermocouples installed at each exhaust port, then
another a few inches further down right at the turbo inlet, then another ~10"
after the turbo outlet (pics are in the archives if interested). I was very
surprised at this temp drop myself so swapped around positions of the T/C's
to confirm the temps.
Strange but
true.
Todd
I
found Todd's old post, and he was measuring 700+ degrees
difference. It was a fairly preliminary report, and even he was
questioning whether this could be right. Maybe he'll see this, and have
more info.
I've
heard "50 degrees per inch", as a rate of cooling with regard to
placement of EGT probes. If that's correct, then it would seem like a
big heavy stock manifold, and turbo would account for way more than 4
inches worth of
cooling.
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