----- Original Message -----

From: Ed Anderson

To: Rotary motors in aircraft

Sent: Tuesday, May 03, 2005 9:08 PM

Subject: [FlyRotary] Re: EGT temps

The first set of EGT probes I had were on the short side approx 1/2".  My temps were always lower than what Tracy reported, then at one annual I changed the probes to ones that had a 1 1/2" probe length, EGTs increased by 200F.  Apparently the shorter probes were not in the hottest part of the exhaust flow (center).  But, I certainly don't think 1450F is high (if accurate).

 

Ed

----- Original Message -----

From: sqpilot@bellsouth.net

To: Rotary motors in aircraft

Sent: Wednesday, May 04, 2005 2:03 PM

Subject: [FlyRotary] Re: EGT temps

Hi, Ed and thanks for the response. I have the stock cast iron manifold (the smaller of the two sizes available). Then I have an 8 inch pipe extending off that manifold. The EGT probe is in the firs inch of the pipe, or 1 inch out from the cast iron manifld.  Paul Conner

----- Original Message -----

From: Ed Anderson

To: Rotary motors in aircraft

Sent: Tuesday, May 03, 2005 8:55 PM

Subject: [FlyRotary] Re: EGT temps

Paul,

 

My EGT temps normally range from 1450 (lean) to 1600 and have gone as high as 1750F, so no, I don't think yours are too high.  However, part of the equation is where are your EGTs located - close the ports, far from the ports?  Mine are approx 8" from the ports.

 

Mold for enlarge duct opening nearly completed today, fiberglass (ugh {:>)) tomorrow.  Then an air filter/plenum to build and I should be ready in plenty of time for the Mid-Atlantic Fly in 12 May.

 

Ed A

----- Original Message -----

From: sqpilot@bellsouth.net

To: Rotary motors in aircraft

Sent: Wednesday, May 04, 2005 1:37 PM

Subject: [FlyRotary] EGT temps

Hi all...I flew the SQ2000 again. Engine ran great. Just flew around enjoying the thing.  After removing the thermostat, I found that upon reaching the end of the runway my water temps were only 120 degrees instead of the normal 160 to 170 degrees. Temps rose much slower than normal on climb-out.  Actually fun to fly when you don't have to keep focusing on temps all the time.  Cruising at 4500 rpm's, the temps were very cool....stabilized at around 180 degrees at 1500' AGL. Temos on the ground were around 78.  When I increased the throttle to 5300 rpm's in level flight, temps slowly started rising. I then noted the EGT at 5300 rpm's. It was 1425.  Does this sound a little too high?  If so, my mixture settings may be a little lean at those rpm's.  Just wondering what others are seeing for EFT temps for around 5300 rpm's.  Thanks in advance for any and all replies.  Paul Conner