How restrictive was your muffler?

Mark Steitle <msteitle@gmail.com> wrote:

>Brian,
>
>I had high EGT's at one time.  Turns out it was due to an overly
>restrictive muffler.  The high EGT's damaged the o-rings resulting in an
>engine overhaul.  Could this possibly be at the root of your high EGT
>readings?
>
>Mark S.
>
>On Tue, May 15, 2012 at 8:51 PM, <bktrub@aol.com> wrote:
>
>> My engine is now running just the way it should, temps were 180 or lower
>> on a 75 degree day, but my EGTs have always been high, really high- above
>> 1800 almost all the time. I think it may be a calibration issue. My egt
>> sensors are about 3 inches downstream of the exhaust ports, and I am using
>> Tracy's EM2, calibrated at the stock settings. When the engine is stone
>> cold, the egt's read about 230 degrees, which I assume is normal because
>> the sensors are meant to operate at a much higher temperature. Any thoughts?
>>
>> Brian Trubee
>>