X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from na01-bn1-obe.outbound.protection.outlook.com ([207.46.163.158] verified) by logan.com (CommuniGate Pro SMTP 6.0.8) with ESMTPS id 6749328 for flyrotary@lancaironline.net; Tue, 25 Feb 2014 15:50:12 -0500 Received-SPF: none receiver=logan.com; client-ip=207.46.163.158; envelope-from=SBoese@uwyo.edu Received: from BL2PR05MB098.namprd05.prod.outlook.com (10.255.232.15) by DM2PR05MB398.namprd05.prod.outlook.com (10.141.102.26) with Microsoft SMTP Server (TLS) id 15.0.888.9; Tue, 25 Feb 2014 20:49:35 +0000 Received: from BL2PR05MB098.namprd05.prod.outlook.com ([169.254.2.125]) by BL2PR05MB098.namprd05.prod.outlook.com ([169.254.2.125]) with mapi id 15.00.0888.003; Tue, 25 Feb 2014 20:49:34 +0000 From: "Steven W. Boese" To: Rotary motors in aircraft Subject: RE: [FlyRotary] Re: wastegate control and oil coolers Thread-Topic: [FlyRotary] Re: wastegate control and oil coolers Thread-Index: AQHPMmBtyKncupPOPE6Qudkgvz89EprGbStn Date: Tue, 25 Feb 2014 20:49:34 +0000 Message-ID: <2c1282d4a771423fa7be644dc3acf82a@BL2PR05MB098.namprd05.prod.outlook.com> References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [70.196.193.67] x-forefront-prvs: 01334458E5 x-forefront-antispam-report: SFV:NSPM;SFS:(10009001)(6009001)(377454003)(199002)(189002)(77982001)(59766001)(81686001)(93516002)(79102001)(74706001)(65816001)(66066001)(80022001)(94946001)(69226001)(95416001)(74316001)(81542001)(63696002)(80976001)(86362001)(74366001)(94316002)(19580405001)(19580395003)(83322001)(81342001)(15975445006)(51856001)(54356001)(53806001)(4396001)(76482001)(93136001)(75432001)(90146001)(56816005)(92566001)(83072002)(46102001)(85852003)(74876001)(77096001)(87936001)(85306002)(47446002)(76796001)(76786001)(33646001)(76576001)(16236675002)(74662001)(74502001)(31966008)(56776001)(49866001)(47736001)(47976001)(50986001)(2656002)(95666003)(81816001)(87266001)(54316002)(24736002)(80792004)(19607625005);DIR:OUT;SFP:1101;SCL:1;SRVR:DM2PR05MB398;H:BL2PR05MB098.namprd05.prod.outlook.com;CLIP:70.196.193.67;FPR:EC1AC3AF.ADE2DC85.3E9B3C4.44E1E14C.20236;PTR:InfoNoRecords;A:1;MX:1;LANG:en; Content-Type: multipart/alternative; boundary="_000_2c1282d4a771423fa7be644dc3acf82aBL2PR05MB098namprd05pro_" MIME-Version: 1.0 X-OriginatorOrg: uwyo.edu --_000_2c1282d4a771423fa7be644dc3acf82aBL2PR05MB098namprd05pro_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Bobby, The variable absolute pressure controller as received allows WOT at 28" MAP= , or in other words, opens the wastegate to maintain 28" MAP at the minimum= setting. The MAP can then be further increased using the linkage to the c= am on the controller. The minimum setting appears to be easily adjustable = with a set screw but I haven't tried that yet. It may be possible to adjus= t the minimum setting to 23" MAP. Steve ________________________________ From: Rotary motors in aircraft on behalf of = Bobby J. Hughes Sent: Tuesday, February 25, 2014 12:31 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: wastegate control and oil coolers Steve, Good to hear you're making progress. I wouldn't have thought the series 2 = engine would present new challenges for oil cooling. I think the DB-30167 w= ill be perfect for your application. The DB-30717 is cooling 38" MP / 7000 = rpm for takeoff and stabilizes at 100-110F over OAT depending on coolant te= mp. Does the wastegate actuator allow you to run full throttle and operate at 2= 3-30" MP? Or do you need to close the throttle to operate at 23" MP? Bobby --_000_2c1282d4a771423fa7be644dc3acf82aBL2PR05MB098namprd05pro_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Bobby,

 

The variable absolute pressure controller as received allows WOT at 28&q= uot; MAP, or in other words, opens the wastegate to maintain 28" MAP a= t the minimum setting.  The MAP can then be further increased using th= e linkage to the cam on the controller.  The minimum setting appears to be easily adjustable with a set screw but I haven't tri= ed that yet.  It may be possible to adjust the minimum setting to 23&q= uot; MAP.

 

Steve 

 

From: Rotary motors in ai= rcraft <flyrotary@lancaironline.net> on behalf of Bobby J. Hughes <= ;bhughes@qnsi.net>
Sent: Tuesday, February 25, 2014 12:31 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: wastegate control and oil coolers
 

Steve,

 

Good to hear you̵= 7;re making progress.  I wouldn’t have thought the series 2 engi= ne would present new challenges for oil cooling. I think the DB-30167 will be perfect for your application. The DB-30717 is cooling 38” MP / 70= 00 rpm for takeoff and stabilizes at 100-110F over OAT depending on coolant= temp.

 

Does the wastegate ac= tuator allow you to run full throttle and operate at 23-30” MP?  Or do you need to close the th= rottle to operate at 23” MP?

 

Bobby

 

 

 

 

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