Hells' bells John, 1650 on takeoff is stone cold.  I normally saw 1760 - 1800 on a NA 13B.  Turbos normally run higher (pre- turbo) than NA.   BTW, which side of the turbo are you measuring?  Temps are lower down-stream.  Another observation - A turbo with LESS restriction will give higher EGT readings down-stream of the turbine so this could be normal.
 
Tracy

    ----- Original Message -----
    *From:* John Slade <mailto:sladerj@bellsouth.net>
    *To:* Rotary motors in aircraft <mailto:flyrotary@lancaironline.net>
    *Sent:* Saturday, April 15, 2006 8:33 PM
    *Subject:* [FlyRotary] Typical EGT

    Rotarians,
    When I installed my T04 turbo I must have damaged the EGT probe. I
    was
    seeing 500F on take-off. Today I installed a new probe and it
    looks like
    the new turbo runs a lot hotter than the old one. While installing
    the
    new probe I noticed that the ceramic coating on the turbo had
    turned to
    dust.

    On take-off today I saw 1730 and the EGT alarm went off. I backed off
    the throttle and flew with it down around 1600, but that only gets me
    around 4500 rpm and zero boost. Bring it up to 5000 rpm and I see
    1650.
    This is with the mixture a little higher than mid scale. Richen the
    mixture a tad and I can reduce EGT by 30 F or so. If I bring the
    rpm up
    to 5300 the EGT is up to 1700 pretty quickly. Oil and coolant
    temps are
    fine at around 180 - 190. I put 3.3 hours on the plane today with no
    other issues, but at 4500 rpm I don't get there very fast. :(

    What do other rotary flyers consider max EGT, and what could be
    causing
    it to be so high (if this is really high)?
    John
    N96PM
    60.5 Hrs.

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