Glad to hear that you are flying again Todd. BTW, you are the one who
inspired the new Primer function on the EC2. Can't remember if yours has
it or not. If so, are you using it and how does it work at low
temperatures?
I think most of the high EGT delta per inch is due to the flame front, not
actual cooling in the pipe. The mixture will affect the observed delta and
where it occurs a lot. Delta across the turbo is for a
different reason. The energy to compress all that air has to come from
somewhere : )
Tracy (drilling final holes in RV-8 instrument panel)
----- Original Message -----
Sent: Friday, December 02, 2005 8:40
AM
Subject: [FlyRotary] Re: Turbo post
mortem
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.