X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.2 cv=HLeBLclv c=1 sm=1 tr=0 a=U2r59aZ8sGwpU4LQDOR7AQ==:117 a=qxuwSOeifgoA:10 a=ZRMmsru8XDcA:10 a=EHOcfTkICyEA:10 a=xqWC_Br6kY4A:10 a=7mUfYlMuFuIA:10 a=4o4WKVwN0o4A:10 a=TCuznF-LQz4P7Sf34YsA:9 a=CjuIK1q_8ugA:10 a=yMhMjlubAAAA:8 a=SSmOFEACAAAA:8 a=I4Nh_YAmVrEdLrrE:21 a=gKO2Hq4RSVkA:10 a=UiCQ7L4-1S4A:10 a=hTZeC7Yk6K0A:10 a=frz4AuCg-hUA:10 From: "Jeff Whaley jwhaley@datacast.com" Received: from [104.47.40.70] (HELO NAM03-CO1-obe.outbound.protection.outlook.com) by logan.com (CommuniGate Pro SMTP 6.2.5) with ESMTPS id 11289019 for flyrotary@lancaironline.net; Fri, 22 Jun 2018 08:27:47 -0400 Received-SPF: none receiver=logan.com; client-ip=104.47.40.70; envelope-from=jwhaley@datacast.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=IDCO365.onmicrosoft.com; s=selector1-datacast-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=Ie185XNKqKbQPuzE4I/0RMGHJUL8CapfmXlY7IQd0hA=; b=TcG/5gm82beIeUl337OvcQ7ESngGUcm3LuHFaqnQ4TpFt2+pNy5LZlXRGLbPIzkPtlKuqC+ixru+xVO2BDuYstg9YNl1mOVDaD2FKNQCXzmqeipb+deuooS/imaVtR05IwCKezhvsv1aasCfVD9ZdzryQP61b60ALELtaPdOp5M= Received: from MW2PR18MB2235.namprd18.prod.outlook.com (52.132.183.32) by MW2PR18MB2266.namprd18.prod.outlook.com (52.132.183.143) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.863.19; Fri, 22 Jun 2018 12:27:28 +0000 Received: from MW2PR18MB2235.namprd18.prod.outlook.com ([fe80::f9e2:1bd5:dc69:6c8a]) by MW2PR18MB2235.namprd18.prod.outlook.com ([fe80::f9e2:1bd5:dc69:6c8a%2]) with mapi id 15.20.0884.021; Fri, 22 Jun 2018 12:27:27 +0000 To: "flyrotary@lancaironline.net" Subject: Re: [FlyRotary] Re: Oil cooler thermost.. Thread-Topic: Re: [FlyRotary] Re: Oil cooler thermost.. Thread-Index: AdQKJGFG1JgDz7PNSpqRpOivEoyuEg== Date: Fri, 22 Jun 2018 12:27:27 +0000 Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=jwhaley@datacast.com; x-originating-ip: [209.87.232.162] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;MW2PR18MB2266;7:zEM7elZkmt0ahRmKFzM3uJBLzjcpaxLuIrk5ny06mwA8TKHm88yPd4F40/Os9S6xm2tWnHMdLCciMSKS4ADicpbulph+tmSeZQ8RVQPZJ2Q5FpAcKF/kWPri4rrh1mNHtiawMPeg/1ExZ4C0aXNOmpCPZepjqZQDgzEJZMfpZ9xHH+DvlD4QQh2QMq1NIJSDRqLeGTXeV96Kbv3K7eXFH1bZFfXuYYMASEdWYlJcjY/CdWBUeOvlwCZohBJ0fLaW;20:jJNJZo+4+fNVkHT9xIj62sFteXs/PDlqW+hcqxELNga30GC07NZY2wTN79Sjp+IqPBn21RqVw5R2hvkZBKLkCvrf9gaRRU8+naculzPMR5K4mfyY5ZGjpgpNyLTDrg5oWYpTWfvfy+DTLABi7kmxVZTJUAjYNmKrNjrJGEwLU0k= x-ms-exchange-antispam-srfa-diagnostics: SOS; x-ms-office365-filtering-correlation-id: 00ea185b-881b-4de6-bcef-08d5d83b8470 x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(7020095)(4652020)(7021125)(4534165)(7022125)(4603075)(4627221)(201702281549075)(7048125)(7024125)(7027125)(7028125)(7023125)(5600026)(711020)(2017052603328)(7153060)(7193020);SRVR:MW2PR18MB2266; x-ms-traffictypediagnostic: MW2PR18MB2266: x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:(28532068793085)(21748063052155); x-ms-exchange-senderadcheck: 1 x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(6040522)(2401047)(8121501046)(5005006)(3002001)(10201501046)(3231254)(944501410)(52105095)(93006095)(93001095)(149027)(150027)(6041310)(20161123560045)(2016111802025)(20161123562045)(20161123558120)(20161123564045)(6043046)(6072148)(201708071742011)(7699016);SRVR:MW2PR18MB2266;BCL:0;PCL:0;RULEID:;SRVR:MW2PR18MB2266; x-forefront-prvs: 071156160B x-forefront-antispam-report: SFV:NSPM;SFS:(10009020)(376002)(396003)(39830400003)(366004)(39380400002)(346002)(199004)(189003)(478600001)(5660300001)(3846002)(2900100001)(1730700003)(6916009)(14454004)(8936002)(33656002)(102836004)(790700001)(66066001)(486006)(6506007)(81156014)(476003)(5640700003)(7696005)(26005)(5630700001)(186003)(18717965001)(86362001)(68736007)(81166006)(8676002)(6116002)(25786009)(54896002)(74316002)(2351001)(4743002)(6246003)(3280700002)(6306002)(55016002)(2906002)(53936002)(97736004)(99286004)(9686003)(229853002)(7736002)(3660700001)(316002)(106356001)(105586002)(5250100002)(6436002)(2501003);DIR:OUT;SFP:1101;SCL:1;SRVR:MW2PR18MB2266;H:MW2PR18MB2235.namprd18.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;A:1;MX:1; received-spf: None (protection.outlook.com: datacast.com does not designate permitted sender hosts) x-microsoft-antispam-message-info: jIxCW+NzmcCXYRleBwxUgXqCWaBMJTlDwx5DAJSCLsCFUgYAY4XeGAD8L3xXCbpG7NMYL5a6hahVF2HusKhvernXKd2LzCkkpUI5XnPymgtHH1XactAM4i0I58UQmHYkH78LPJHnV0BVdNLrMnq0ojstv5mnwDy6oH6v9cFLs1VjBQKYCZXSgLeBVFHgTjU8jeDEbK6o6y0dfsA0cxtnr5y33rb7tWnr+bgIvtDep3LM/intnwkojp8pV8zQWlEpcldus/w7FNgsx738Caz603VNxYOC4ep9eBkpSHt9glxxVBWpBsqfajBhwdzutq1JkV65qn4TEsn8kRx8FbhljA== spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: multipart/alternative; boundary="_000_MW2PR18MB22354A9ED816BCFBC6E3079DC4750MW2PR18MB2235namp_" MIME-Version: 1.0 X-OriginatorOrg: datacast.com X-MS-Exchange-CrossTenant-Network-Message-Id: 00ea185b-881b-4de6-bcef-08d5d83b8470 X-MS-Exchange-CrossTenant-originalarrivaltime: 22 Jun 2018 12:27:27.8643 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: a07f70c7-0440-4b97-b25f-a93dca3f0980 X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW2PR18MB2266 --_000_MW2PR18MB22354A9ED816BCFBC6E3079DC4750MW2PR18MB2235namp_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Todd, I wouldn't worry too much about cold oil as long as it is 100% synthe= tic. I'm near Ottawa, so it can be +30C in the summer and -30C in the winter wit= h significant temperature swings from day to day. At one time I wanted an = oil cooler thermostat for winter flying, as I was scavenging heat from one = oil cooler (I have 2) but have typically opted for air flow restriction. I= was restricting one cooler (Fluidyne) at < 10C and both at < 0C; historica= lly I had better oil cooling than water jacket cooling but last summer I de= cided to try increasing the water cooling at the expense of oil cooling. O= ne of the Fluidynes was converted to a large "heater core" and feed from th= e 3/4 inch port designed for that; the result was cool water and hot oil. = I then bought a medium sized Mishimoto cooler through Amazon and went back= to 2 oil coolers, though slightly less capacity than before. The result i= s now I have pretty well matched temperatures throughout the power envelope= . The other day cruising at 2500 ft and 27C (80F) both temps settled in ar= ound 177F ... I'm okay with that because at 32C my temps should both be und= er 190F. This past winter I decided to try out a thermostat on the water jacket beca= use without it the water temps would barely register (110F) if OAT was near= freezing and I now have a big "heater core". The result was my water jack= et temperature was between 185F-190F all winter long (better cabin heat) an= d my oil temperature was typically around 175F-180F even on cold days. At = present I'm operating without any thermostats but around November I'll put = the water jacket thermostat back in ... Jeff Some (most?) Of you are using custom or at least aftermarket oil coolers bu= t I think there are a few like me that are using stock oil coolers. How man= y have removed the thermostat and plugged the bypass hole? Do any of the non-stock coolers have a thermostat? A Google search on the subject shows that on the RX7 forums it seems to be = generally accepted to leave it alone. But for our use I'm less inclined to think we always need it and it seems= to be quite restrictive. Of those flying without one in either stock or non-stock, how many are fl= ying in warm climates only? Anybody in cold? Jeff? I'm just concerned about winter flying especially during a long descent w= here it might cool excessively and then if I was required to use sudden pow= er for a missed approach, would that cold oil be a problem? Todd --_000_MW2PR18MB22354A9ED816BCFBC6E3079DC4750MW2PR18MB2235namp_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Todd, I wouldn’t worry too much about cold oil= as long as it is 100% synthetic.

I’m near Ottawa, so it can be +30C in the = summer and -30C in the winter with significant temperature swings from day = to day.  At one time I wanted an oil cooler thermostat for winter flyi= ng, as I was scavenging heat from one oil cooler (I have 2) but have typically opted for air flow restriction.  I was = restricting one cooler (Fluidyne) at < 10C and both at < 0C; historic= ally I had better oil cooling than water jacket cooling but last summer I d= ecided to try increasing the water cooling at the expense of oil cooling.  One of the Fluidynes was converted to= a large “heater core” and feed from the  3/4 inch port de= signed for that; the result was cool water and hot oil.  I then bought= a medium sized Mishimoto cooler through Amazon and went back to 2 oil coolers, though slightly less capacity than before.  The res= ult is now I have pretty well matched temperatures throughout the power env= elope.  The other day cruising at 2500 ft and 27C (80F) both temps set= tled in around 177F ... I’m okay with that because at 32C my temps should both be under 190F.

This past winter I decided to try out a thermostat o= n the water jacket because without it the water temps would barely register= (110F) if OAT was near freezing and I now have a big “heater core= 221;.  The result was my water jacket temperature was between 185F-190F all winter long (better cabin heat) and my oil tempe= rature was typically around 175F-180F even on cold days.  At present I= ’m operating without any thermostats but around November I’ll p= ut the water jacket thermostat back in ...

Jeff

 

Some (most?) Of you are using custom= or at least aftermarket oil coolers but I think there are a few like me th= at are using stock oil coolers. How many have removed the thermostat and plugged the bypass hole?

Do any of the non-stock coolers have= a thermostat? 

A Google search on the subject shows= that on the RX7 forums it seems to be generally accepted to leave it alone= .

  But for our use I'm less incl= ined to think we always need it and it seems to be quite restrictive. =

  Of those flying without one i= n either stock or non-stock, how many are flying in warm climates only? Any= body in cold? Jeff? 

  I'm just concerned about wint= er flying especially during a long descent where it might cool excessively = and then if I was required to use sudden power for a missed approach, would that cold oil be a problem? 

 

Todd 

 

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