X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail-fx0-f52.google.com ([209.85.161.52] verified) by logan.com (CommuniGate Pro SMTP 5.4c2o) with ESMTPS id 4889112 for flyrotary@lancaironline.net; Thu, 03 Mar 2011 09:19:05 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.161.52; envelope-from=msteitle@gmail.com Received: by fxm17 with SMTP id 17so1183845fxm.25 for ; Thu, 03 Mar 2011 06:18:28 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:in-reply-to:references:date :message-id:subject:from:to:content-type; bh=aqj9IpCKnFBF+cp5QVoCmhq9j8bO0mPCYSLLl/wGsZM=; b=WoemRT/wYOSsESgR5Z7r5uoZbY+3OKdshLc3MaWRfmyV/7Xa5XAciF0PsSiLIRlc8L cxddskPGwXrAmpJ/sxirbfULvRo08ZpOdtgCsPvmdQ+paeBruhTeFbNBPZy2gZ//9k4p vuzNcpqHhM19FBtvs93j/VP6ghyExxTG3NDRI= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=uhUw7dvIqDTkYBlejF5L+qXN3SiBqEJUxDDoKUf83VTBc18sCAOLFnzAQITL6UQJJD dsG9yyf5qjqRYmrhaC4FddfAmhGT4Q22OWrcrYREYzJn/z0b2RfjErPubtdGyL8TAvIc cpK3uMf8KQj4gKFp9QAK1OUuKfG7vQyMXQpfs= MIME-Version: 1.0 Received: by 10.223.83.7 with SMTP id d7mr1582846fal.82.1299161899104; Thu, 03 Mar 2011 06:18:19 -0800 (PST) Received: by 10.223.73.203 with HTTP; Thu, 3 Mar 2011 06:18:19 -0800 (PST) In-Reply-To: References: Date: Thu, 3 Mar 2011 08:18:19 -0600 Message-ID: Subject: Re: [FlyRotary] Coolant routing From: Mark Steitle To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=20cf3054a585807aeb049d94b394 --20cf3054a585807aeb049d94b394 Content-Type: text/plain; charset=ISO-8859-1 Bill, The port at the rear iron was intended for the heater circuit. If you don't have a heater, why not just remove the hose and plug the outlet? That's how mine is done. Otherwise, you are increasing coolant temps with no gain. My normal EGT's are in the mid 1600's. Sounds like yours are reasonable. Mark On Thu, Mar 3, 2011 at 7:59 AM, Bill Bradburry wrote: > I have a heater hose connected from the stock outlet from the rear iron and > the other end of the hose is connected to the inlet to the water pump > housing. I don't currently have a heat exchanger in this hose nor do I > have > a valve to shut off the flow of water. I assume that it is flowing full > bore any time the engine is running. 5/8 inch hose. Naturally this water > is bypassing the hot side of the engine as well as the radiator. > I would like some opinions as to what effect this might have on my cooling > temperatures. Has anyone done this, then installed a valve to shut off the > flow and seen the effect? > I have a valve, but didn't want to put it in till I design the rest of the > heater system. > What say ye? > > Yesterday morning, OAT about 70, water temp about 170 when I took the > active, climbed to about 205 getting to pattern altitude, then cooled to > about 199 as I went around the pattern. I left of a little sightseeing > trip > got up to 2500 (low clouds) flew over the house, (the wife heard me coming > and ran outside..so much for thinking it was quiet! She said it sounds > like > an airplane on steroids. I take that as a complement) > > The temp seemed pretty stable around 200, but it did climb to 210 one time > for a short period for no reason that I could figure then came back down. > EGT I thought was pretty high, around 1600. Mixture about two bars above > the midpoint. > > Bill B > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html > --20cf3054a585807aeb049d94b394 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Bill,=A0

The port at the rear iron was intended for the = heater circuit. =A0If you don't have a heater, why not just remove the = hose and plug the outlet? =A0That's how mine is done. =A0Otherwise, you= are increasing coolant temps with no gain.

My normal EGT's are in the mid 1600's. =A0Sound= s like yours are reasonable.

Mark =A0=A0

On Thu, Mar 3, 2011 at 7:59 AM, Bill Bradbu= rry <bbrad= burry@bellsouth.net> wrote:
I have a heater hose connected from the sto= ck outlet from the rear iron and
the other end of the hose is connected to the inlet to the water pump
housing. =A0I don't currently have a heat exchanger in this hose nor do= I have
a valve to shut off the flow of water. =A0I assume that it is flowing full<= br> bore any time the engine is running. =A05/8 inch hose. =A0Naturally this wa= ter
is bypassing the hot side of the engine as well as the radiator.
I would like some opinions as to what effect this might have on my cooling<= br> temperatures. =A0Has anyone done this, then installed a valve to shut off t= he
flow and seen the effect?
I have a valve, but didn't want to put it in till I design the rest of = the
heater system.
What say ye?

Yesterday morning, OAT about 70, water temp about 170 when I took the
active, climbed to about 205 getting to pattern altitude, then cooled to about 199 as I went around the pattern. =A0I left of a little sightseeing t= rip
got up to 2500 (low clouds) flew over the house, (the wife heard me coming<= br> and ran outside..so much for thinking it was quiet! =A0She said it sounds l= ike
an airplane on steroids. I take that as a complement)

The temp seemed pretty stable around 200, but it did climb to 210 one time<= br> for a short period for no reason that I could figure then came back down. EGT I thought was pretty high, around 1600. =A0Mixture about two bars above=
the midpoint.

Bill B


--
Homepage: =A0http:/= /www.flyrotary.com/
Archive and UnSub: =A0 http://mail.lancaironline.net:81/lists= /flyrotary/List.html

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