X-Virus-Scanned: clean according to Sophos on Logan.com X-PolluStop-Diagnostic: (direct reply)\eX-PolluStop-Score: 0.00\eX-PolluStop: Scanned with Niversoft PolluStop 2.1 RC1, http://www.niversoft.com/pollustop Return-Path: Received: from imf24aec.mail.bellsouth.net ([205.152.59.72] verified) by logan.com (CommuniGate Pro SMTP 4.3c4) with ESMTP id 864403 for flyrotary@lancaironline.net; Sun, 10 Apr 2005 21:13:05 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.72; envelope-from=sqpilot@bellsouth.net Received: from paul ([216.78.114.84]) by imf24aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with SMTP id <20050411011218.EGPQ2032.imf24aec.mail.bellsouth.net@paul> for ; Sun, 10 Apr 2005 21:12:18 -0400 Message-ID: <000b01c53eb9$a4b6ea50$54724ed8@paul> From: To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: SQ2000 flying again Date: Mon, 11 Apr 2005 12:12:26 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0008_01C53E8F.B983B870" 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 This is a multi-part message in MIME format. ------=_NextPart_000_0008_01C53E8F.B983B870 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi, Kelly...mostly due to the ram air scoop's location. The intake = plenum would be very difficult to construct to end up at the very large = ram air intake scoop. Much easier to seal it off and install either a = NACA or a ram air intake on the bottom of the bottom cowling extension = and just use a 3 inch hose. The NACA duct comes preformed with a 3 inch = outlet for a hose, and I just ordered an aluminum flange for a 3 inch = hose to attach to the throttlebody plenum. I can install the whole thing = in a weekend with all these pre-cabbed parts. Paul, just call me lazy, = Conner =20 ----- Original Message -----=20 From: Kelly Troyer=20 To: Rotary motors in aircraft=20 Sent: Sunday, April 10, 2005 7:53 PM Subject: [FlyRotary] Re: SQ2000 flying again Paul, May I ask why not retain the ram air scoop and seal it to the intake plenum thereby keeping the manifold pressure increase that it gives you at speed ?? -- Kelly Troyer=20 Dyke Delta/13B/RD1C/EC2=20 -------------- Original message from "Paul" : = --------------=20 Hi, John....the only thing you are missing is that I used to be able = to cool down in the climb. Now, at the same throttle setting, I can not. = Only addition has been the ram air scoop dumping air in the vicinity of = the throttlebody. (High pressure air being forced into a low pressure = area of the cowling). I believe that is hindering the ability of the air = to enter the NACA duct and go through the radiator. Paul Conner ----- Original Message -----=20 From: John Slade=20 To: Rotary motors in aircraft=20 Sent: Sunday, April 10, 2005 6:45 AM Subject: [FlyRotary] Re: SQ2000 flying again Great Paul, but what's wrong with those temps and what are your = targets? Obviously the temps are going to be a bit higher if you're = producing more power. I remember Leon saying that the most efficient = operating temp, at least for a 3rd gen REW, was around 180F. 220F was, = I'm pretty sure he said, the red line and you don't want to be there for = long. If you can cruise at 190 at, presumably, fairly low altitude then = I'd say you're about right and you'll get 180 on a high altitude cruise. Am I missing something here? John I flew the SQ2000 today. The engine is running great, now that I = have a seperate water temp sender for the ECU and another for the engine = monitor. The outside air temp was 80 degrees, and I am very disappointed = with my coolant temps. The water temp hit 205 during the climb. Temps = slowly came back down to 190 once I was in level flight, and dropped to = 170 on short final. Very disappointing. (oil temps were fine). I am = going to seal all the gaps around the radiator first, and see if that = helps. I am concerned that the new ram air scoop I made to bring in = cool air to the throttlebody might be pressurizing the rear of the = cowling, and inhibiting the induction of air through the radiator. I = will try sealing around the radiator first. If that fails to bring the = temps down, I will try removing the ram air scoop and installing a NACA = scoop with a hose to bring air directly to the throttlebody, and not = dump it into the low pressure area of the cowling. If that fails, I = think I will take up fishing or golf. Paul Conner, 13b powered SQ2000 in Mobile, AL -------------------------------------------------------------------------= - No virus found in this incoming message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.9.5 - Release Date: = 4/7/2005 ------=_NextPart_000_0008_01C53E8F.B983B870 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hi, Kelly...mostly due to the ram air = scoop's=20 location. The intake plenum would be very difficult to construct to end = up at=20 the very large ram air intake scoop. Much easier to seal it off and = install=20 either a NACA or a ram air intake on the bottom of the bottom cowling = extension=20 and just use a 3 inch hose. The NACA duct comes preformed with a 3 inch = outlet=20 for a hose, and I just ordered an aluminum flange for a 3 inch hose to = attach to=20 the throttlebody plenum. I can install the whole thing in a weekend = with=20 all these pre-cabbed parts. Paul, just call me lazy, Conner
 
----- Original Message -----
From:=20 Kelly = Troyer
Sent: Sunday, April 10, 2005 = 7:53=20 PM
Subject: [FlyRotary] Re: SQ2000 = flying=20 again

Paul,
   May I ask why not retain the ram air scoop and seal = it to=20 the
intake plenum thereby keeping the manifold pressure = increase
that it gives you at speed ??
--
Kelly Troyer
Dyke=20 Delta/13B/RD1C/EC2




--------------=20 Original message from "Paul" <sqpilot@bellsouth.net>: = --------------

Hi, John....the only thing you are = missing is=20 that I used to be able to cool down in the climb. Now, at the same = throttle=20 setting, I can not. Only addition has been the ram air scoop dumping = air in=20 the vicinity of the throttlebody. (High pressure air being forced = into a low=20 pressure area of the cowling). I believe that is hindering the = ability of=20 the air to enter the NACA duct and go through the radiator.  = Paul=20 Conner
 
----- Original Message ----- =
From:=20 John=20 Slade
To: Rotary motors in = aircraft=20
Sent: Sunday, April 10, = 2005 6:45=20 AM
Subject: [FlyRotary] Re: = SQ2000=20 flying again

Great Paul, but what's wrong with those temps and what = are your=20 targets? Obviously the temps are going to be a bit higher if = you're=20 producing more power. I remember Leon saying that = the most=20 efficient operating temp, at least for a 3rd gen REW, was around=20 180F.  220F was, I'm pretty sure he said, the red line and = you don't=20 want to be there for long. If you can=20 cruise at 190 at, presumably, fairly low altitude then I'd say = you're=20 about right and you'll get 180 on a high altitude=20 cruise.
Am I missing something here?
John
 
 I flew the SQ2000 today. = The engine=20 is running great, now that I have a seperate water temp sender for = the ECU=20 and another for the engine monitor. The outside air temp was 80 = degrees,=20 and I am very disappointed with my coolant temps. The water temp = hit 205=20 during the climb.  Temps slowly came back down to 190 once I = was in=20 level flight, and dropped to 170 on short final. Very=20 disappointing. (oil temps were fine).  I am going to = seal all=20 the gaps around the radiator first, and see if that helps.  I = am=20 concerned that the new ram air scoop I made to bring in cool air = to the=20 throttlebody might be pressurizing the rear of the cowling, and = inhibiting=20 the induction of air through the radiator. I will try sealing = around the=20 radiator first. If that fails to bring the temps down, I will try = removing=20 the ram air scoop and installing a NACA scoop with a hose to bring = air=20 directly to the throttlebody, and not dump it into the low = pressure area=20 of the cowling.  If that fails, I think I will take up = fishing or=20 golf.
     Paul = Conner, 13b=20 powered SQ2000 in Mobile, AL

No virus found in this incoming message.
Checked by AVG=20 Anti-Virus.
Version: 7.0.308 / Virus Database: 266.9.5 - = Release Date:=20 4/7/2005
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