X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.2 cv=aM2ykv1m c=1 sm=1 tr=0 a=li6lVjOP1YS7ff0bTg5Nrg==:117 a=x7bEGLp0ZPQA:10 a=xXDCcK6TKBsA:10 a=KeKAF7QvOSUA:10 a=-5LUZhgxAAAA:8 a=_6GpL_ENAAAA:8 a=Ia-xEzejAAAA:8 a=pjmy6vmMCYYY8NbOsgkA:9 a=QEXdDO2ut3YA:10 a=b6WyXo6iwcH01NEs2VsA:9 a=mod78r3uu1mqWKui:21 a=WutpEK6nTlQjJys0BURe:22 a=Urk15JJjZg1Xo0ryW_k8:22 From: "Todd Bartrim" Received: from mail-wr0-f170.google.com ([209.85.128.170] verified) by logan.com (CommuniGate Pro SMTP 6.2c3) with ESMTPS id 10025314 for flyrotary@lancaironline.net; Fri, 18 Aug 2017 00:51:06 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.128.170; envelope-from=bartrim@gmail.com Received: by mail-wr0-f170.google.com with SMTP id 49so51552877wrw.2 for ; Thu, 17 Aug 2017 21:51:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to; bh=aU0KW1jLzCb3q4/d272OPC878ec6uiwUAATrtee72t4=; b=SudKREk25hAa0/RT76lc3cHp/PfAPgrYk14O8ERy99acEeQgaPKFHoln9w6oJruF4I /f2iIvdU6oX17PFB3/WKNp8nbBNmiFTXr/lvZxxPVH6n21YU7uTHh1J1nyfzbAxHoNzX UsYpluTpkGspf6YNJ+8Kf1SBU6Zv+A1HMiHMwagk+rsBDLVgGcjW7sOjeEe6n2H+MBXh s8AVLJCuCk0R+WBaaorE9usMksKAyUv46F9Uc78GP4R4BbqIbIh2roBLK+1Fzj6CBDCz nztbzSsGPW+1w4FzbkfVQdygC05eEa/5W5JZCuaDNBCZw0DN4eH3iAsmOUvSJEG5VSpm /Edw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to; bh=aU0KW1jLzCb3q4/d272OPC878ec6uiwUAATrtee72t4=; b=cNX04bxYywUoQx8BEymFR6ILbxHmKNFyc9foIaq0somaxavcrRUcaXJYuA/WupI39B xEJGWRZ0SkXVIFNgCrD1h38sYpirT1w0XXZTQNXlXow9W/oigaUjIKa9m6GYXh7l12g5 qN7GiPz7eR0OEyORGwS1y1Yhkx8qWkcCinIm+xMTw0gTPeoniXMxP4inWV3oM00rccjU koaEuDF8w0Hy7dqBomruJcbIo8O92/CRAuZaTSnWKe1q74loH/95NsJZtfD6f3nj2u+4 f+dNJVoKykfiWdNXYASUbYsdaIxZ8xvZHk3ogyOQ8w3fSDKi7AGEVivnUaCMf4ZEJgd7 BPRw== X-Gm-Message-State: AHYfb5glK8+360s1zfumV3hfVwoucwIzB2tDFX2L7aG90glEGrY49/yi pYipcgDqEXHGFtECDcDlt/Qn3xnBKDLu X-Received: by 10.80.192.72 with SMTP id u8mr3724680edd.155.1503031848577; Thu, 17 Aug 2017 21:50:48 -0700 (PDT) MIME-Version: 1.0 Received: by 10.80.169.134 with HTTP; Thu, 17 Aug 2017 21:50:48 -0700 (PDT) In-Reply-To: References: Date: Thu, 17 Aug 2017 21:50:48 -0700 Message-ID: Subject: Re: [FlyRotary] Coolers To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary="94eb2c1cd46c6bafb40556ffdfae" --94eb2c1cd46c6bafb40556ffdfae Content-Type: text/plain; charset="UTF-8" Hi Andrew; I put one of these Laminova exchangers from Mocal in my plane. https://www.racerpartswholesale.com/category/Mocal_Heat_Exchangers Very compact but still a few pounds, but it seems to work well so far. I used to see better oil cooling in climb than water cooling, but in cruise I had better water cooling than oil cooling. This was likely from my old, good looking oil cooler scoop, which I don't think was very efficient. I've cut that off and changed it to more of a P51 style scoop. Still looks ok, but it should work much better, so when I return to flight I'll not be able to say definitively if any improvements are due to the Laminova cooler or the improved airflow. However, so far in static ground tests my H2O/Oil temps are quite close. Todd waiting for the smoke to clear Virus-free. www.avast.com <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> Todd Bartrim On Thu, Aug 17, 2017 at 1:06 PM, Lehanover wrote: > Lynn, from your explanation, seems to confirm my gut feel that I need to > have that external OCV, to cool all the oil being pumped. but maybe I could > use a oil to coolant exchanger to even up the system capacities. > > Cheers Andrew > > *I tried one of those years ago. Big. Very heavy with both water and oil > inside. Oil temps were fine. Water temps too high. I cut off the outer > shell and used it as a oil to air, transmission cooler. It is just a > standard oil to air cooler in a box full of water. * > > *Mazda had one in the RX-7...........for one year. I mounted under the oil > filter.* > > *Lynn E. Hanover* > > > --94eb2c1cd46c6bafb40556ffdfae Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hi Andrew;=C2=A0
=C2=A0 I put one of these Laminova ex= changers from Mocal in my plane.
Very compact but s= till a few pounds, but it seems to work well so far.
I used to se= e better oil cooling in climb than water cooling, but in cruise I had bette= r water cooling than oil cooling.
=C2=A0 This was likely from my = old, good looking oil cooler scoop, which I don't think was very effici= ent. I've cut that off and changed it to more of a P51 style scoop. Sti= ll looks ok, but it should work much better, so when I return to flight I&#= 39;ll not be able to say definitively if any improvements are due to the La= minova cooler or the improved airflow. However, so far in static ground tes= ts my H2O/Oil temps are quite close.

Todd =C2=A0 w= aiting for the smoke to clear

3D"" Virus-free. www.avast.com

Todd Bartrim

On Thu, Aug 17, 2017 at 1:06 PM, Lehanover <= span dir=3D"ltr"><flyrotary@lancaironline.net> wrote:

Lynn, from your explana= tion,=20 seems to confirm my gut feel that I need to have that external OCV, to cool= all=20 the oil being pumped. but maybe I could use a oil to coolant exchanger to e= ven=20 up the system capacities.

Cheers Andrew

I tried one of those years = ago. Big.=20 Very heavy with both water and oil inside. Oil temps were fine. Water temps= too=20 high.=C2=A0 I cut off the outer shell and used it as a oil to air, transmis= sion=20 cooler. It is just a standard oil to air cooler in a box full of water.=20

Mazda had one in the RX-7..= .........for=20 one year. I mounted under the oil filter.

Lynn E. Hanover

=C2=A0


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