X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [24.25.9.103] (HELO ms-smtp-04-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 4.3c5) with ESMTP id 931891 for flyrotary@lancaironline.net; Tue, 03 May 2005 22:09:36 -0400 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.103; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-189-178.carolina.res.rr.com [24.74.189.178]) by ms-smtp-04-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id j4428mL5028002 for ; Tue, 3 May 2005 22:08:49 -0400 (EDT) Message-ID: <000b01c5504e$38aead10$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: EGT temps Date: Tue, 3 May 2005 22:08:53 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0008_01C5502C.B144B3E0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0008_01C5502C.B144B3E0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable 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 -----=20 From: sqpilot@bellsouth.net=20 To: Rotary motors in aircraft=20 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 -----=20 From: Ed Anderson=20 To: Rotary motors in aircraft=20 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 -----=20 From: sqpilot@bellsouth.net=20 To: Rotary motors in aircraft=20 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 ------=_NextPart_000_0008_01C5502C.B144B3E0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
The first set of EGT probes I had were = on the short=20 side approx 1/2".  My temps were always lower than what Tracy = reported,=20 then at one annual I changed the probes to ones that had a 1 1/2" probe = length,=20 EGTs increased by 200F.  Apparently the shorter probes were not in = the=20 hottest part of the exhaust flow (center).  But, I certainly don't = think=20 1450F is high (if accurate).
 
Ed
----- Original Message -----
From:=20 sqpilot@bellsouth.net
Sent: Wednesday, May 04, 2005 = 2:03=20 PM
Subject: [FlyRotary] Re: EGT = temps

Hi, Ed and thanks for the response. I = have the=20 stock cast iron manifold (the smaller of the two sizes available). = Then I have=20 an 8 inch pipe extending off that manifold. The EGT probe is in the = firs inch=20 of the pipe, or 1 inch out from the cast iron manifld.  Paul=20 Conner
----- Original Message -----
From:=20 Ed Anderson
To: Rotary motors in = aircraft=20
Sent: Tuesday, May 03, 2005 = 8:55=20 PM
Subject: [FlyRotary] Re: EGT=20 temps

Paul,
 
My EGT temps normally range from = 1450 (lean) to=20 1600 and have gone as high as 1750F, so no, I don't think yours are = too=20 high.  However, part of the equation is where are your EGTs = located -=20 close the ports, far from the ports?  Mine are approx 8" from = the=20 ports.
 
Mold for enlarge duct opening = nearly completed=20 today, fiberglass (ugh {:>)) tomorrow.  Then an air = filter/plenum to=20 build and I should be ready in plenty of time for the Mid-Atlantic = Fly in 12=20 May.
 
Ed A
----- Original Message ----- =
From:=20 sqpilot@bellsouth.net =
To: Rotary motors in = aircraft=20
Sent: Wednesday, May 04, = 2005 1:37=20 PM
Subject: [FlyRotary] EGT = temps

Hi all...I flew the SQ2000 again. = Engine ran=20 great. Just flew around enjoying the thing.  After removing = the=20 thermostat, I found that upon reaching the end of the runway my = water=20 temps were only 120 degrees instead of the normal 160 to 170 = degrees.=20 Temps rose much slower than normal on climb-out.  Actually = fun to fly=20 when you don't have to keep focusing on temps all the time.  = Cruising=20 at 4500 rpm's, the temps were very cool....stabilized at around = 180=20 degrees at 1500' AGL. Temos on the ground were around 78.  = When I=20 increased the throttle to 5300 rpm's in level flight, temps slowly = started=20 rising. I then noted the EGT at 5300 rpm's. It was 1425.  = Does this=20 sound a little too high?  If so, my mixture settings may be a = little=20 lean at those rpm's.  Just wondering what others are seeing = for EFT=20 temps for around 5300 rpm's.  Thanks in advance for any and = all=20 replies.  Paul=20 Conner
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