X-Virus-Scanned: clean according to Sophos on Logan.com From: "DALE HARVEY" Received: from SNT004-OMC1S50.hotmail.com ([65.54.61.87] verified) by logan.com (CommuniGate Pro SMTP 6.1.9) with ESMTPS id 8567954 for flyrotary@lancaironline.net; Mon, 11 Apr 2016 17:54:38 -0400 Received-SPF: pass receiver=logan.com; client-ip=65.54.61.87; envelope-from=DHARVEY564@msn.com Received: from NAM02-BL2-obe.outbound.protection.outlook.com ([65.55.90.8]) by SNT004-OMC1S50.hotmail.com over TLS secured channel with Microsoft SMTPSVC(7.5.7601.23008); Mon, 11 Apr 2016 14:54:19 -0700 Received: from BL2NAM02FT055.eop-nam02.prod.protection.outlook.com (10.152.76.60) by BL2NAM02HT119.eop-nam02.prod.protection.outlook.com (10.152.76.241) with Microsoft SMTP Server (TLS) id 15.1.453.6; Mon, 11 Apr 2016 21:54:18 +0000 Received: from SN1PR14MB0688.namprd14.prod.outlook.com (10.152.76.55) by BL2NAM02FT055.mail.protection.outlook.com (10.152.77.126) with Microsoft SMTP Server (TLS) id 15.1.453.6 via Frontend Transport; Mon, 11 Apr 2016 21:54:18 +0000 Received: from SN1PR14MB0688.namprd14.prod.outlook.com ([10.164.45.150]) by SN1PR14MB0688.namprd14.prod.outlook.com ([10.164.45.150]) with mapi id 15.01.0453.029; Mon, 11 Apr 2016 21:54:18 +0000 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: Intake Styles and Data Thread-Topic: [FlyRotary] Re: Intake Styles and Data Thread-Index: AQHRlCm8rFxwv/B8U0WBjXQVVmdCz5+FUBv9 Date: Mon, 11 Apr 2016 21:54:18 +0000 Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=softfail (sender IP is 25.152.76.55) smtp.mailfrom=msn.com; lancaironline.net; dkim=none (message not signed) header.d=none;lancaironline.net; dmarc=fail action=none header.from=msn.com; received-spf: SoftFail (protection.outlook.com: domain of transitioning msn.com discourages use of 25.152.76.55 as permitted sender) x-tmn: [OJs1Gp+A+ryHrQ85hirBALGR9l8UTP9W] x-eopattributedmessage: 0 x-forefront-antispam-report: CIP:25.152.76.55;IPV:NLI;CTRY:GB;EFV:NLI;SFV:NSPM;SFS:(10019020)(98900003);DIR:OUT;SFP:1102;SCL:1;SRVR:BL2NAM02HT119;H:SN1PR14MB0688.namprd14.prod.outlook.com;FPR:;SPF:SoftFail;MLV:ovrnspm;A:1;MX:1;LANG:en; x-ms-office365-filtering-correlation-id: 467e2c0c-e802-4a89-ac49-08d36253d4df x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(5061506196)(5061507196);SRVR:BL2NAM02HT119; x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(432015012)(82015046);SRVR:BL2NAM02HT119;BCL:0;PCL:0;RULEID:;SRVR:BL2NAM02HT119; x-forefront-prvs: 09090B6B69 Content-Type: multipart/alternative; boundary="_000_SN1PR14MB0688136CB773E5C9F484171C87940SN1PR14MB0688namp_" MIME-Version: 1.0 X-OriginatorOrg: outlook.com X-MS-Exchange-CrossTenant-originalarrivaltime: 11 Apr 2016 21:54:18.1357 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Internet X-MS-Exchange-CrossTenant-id: 84df9e7f-e9f6-40af-b435-aaaaaaaaaaaa X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL2NAM02HT119 Return-Path: DHARVEY564@msn.com X-OriginalArrivalTime: 11 Apr 2016 21:54:19.0445 (UTC) FILETIME=[B31D5E50:01D1943C] --_000_SN1PR14MB0688136CB773E5C9F484171C87940SN1PR14MB0688namp_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Lynn, I have a 6-port Renesis and was wondering if I would have to fill the two e= xtra ports or just leave them stock and cover them with intake flange? Dale Harvey ________________________________ From: Rotary motors in aircraft on behalf of = Lehanover Sent: Monday, April 11, 2016 2:38 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Intake Styles and Data For intake lengths, the ideal is the enemy of the good. There is only one p= erfect length and diameter for each full throttle RPM. So a very large numb= er of lengths and diameters work very well for AC use. Tracy's Race winning= engine had rather short compact tube lengths and outran everybody. My race= r has 170 HP at 6,500 RPM and 250 HP at 9,600 RPM from a 12A engine with 22= 92 CCs. This with a very large bridge port. The 13Bs you are building are b= igger with 2,606CCs. The engines tune like a 2 cycle dirt bike. The exhaust system makes a far b= igger difference than does the intake design. My Drummond built race engine= s us a stock intake manifold gasket. The intake runners are polished but NO= T enlarged. You want the highest possible intake flow velocity at every RPM= . The intake manifold to mount a Weber 48 IDF has a plenum below each throa= t so the actual runner length is very short. This in turn tunes a bit bette= r at stupid high RPM but works well enough to deliver good performance abov= e 6,000 RPM. You would not have to add much length beyond the stock lower m= anifold to be about perfect for aircraft use. The HP is in the exhaust syst= em. The side port engines have fewer degrees of overlap than does a Pport (= Massive overlap). Renesis has no overlap at all. Smoother the idle for less= the overlap. Lynn E. Hanover Racing rotaries since 1980. In a message dated 4/11/2016 12:38:17 P.M. Eastern Daylight Time, flyrotary= @lancaironline.net writes: Actually on paper I'm still the CEO of the company but all the day to day o= perations are handled by Laura since my retirement. She has been a great b= usiness partner. Tracy Sent from Mail for Window= s 10 From: ARGOLDMAN Sent: Monday, April 11, 2016 8:29 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Intake Styles and Data Thanks for the link. Actually, The company is owned by Laura, Tracy's EX. (reminds me of the li= cense plate of a Mercedes, in my area," WAS HIS" Although they don't have aviation parts any more, they still stock a comple= te line of Tracy's seals, rebuild kits etc. Rich In a message dated 4/10/2016 9:28:09 P.M. Pacific Daylight Time, flyrotary@= lancaironline.net writes: Sorry for lack of detailed info; I was away from home & pecking at my phone= to reply. Wayback machine: https://archive.org/web/ Tracy's old website was: http://www.rotaryaviation.com/ which no longer has aviation info on it (currently only car performance par= ts under different ownership). =3D --_000_SN1PR14MB0688136CB773E5C9F484171C87940SN1PR14MB0688namp_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Hi Lynn,


I have a 6-port Renesis and was wondering if I would have to fill the tw= o extra ports or just leave them stock and cover them with intake flange?


Dale Harvey



From: Rotary motors in ai= rcraft <flyrotary@lancaironline.net> on behalf of Lehanover <flyro= tary@lancaironline.net>
Sent: Monday, April 11, 2016 2:38 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Intake Styles and Data
 
For intake lengths, the ideal is the enemy of the good. There is only = one perfect length and diameter for each full throttle RPM. So a very large= number of lengths and diameters work very well for AC use. Tracy's Race wi= nning engine had rather short compact tube lengths and outran everybody. My racer has 170 HP at 6,500 RPM and 25= 0 HP at 9,600 RPM from a 12A engine with 2292 CCs. This with a very large b= ridge port. The 13Bs you are building are bigger with 2,606CCs.
 
The engines tune like a 2 cycle dirt bike. The exhaust system makes a = far bigger difference than does the intake design. My Drummond built race e= ngines us a stock intake manifold gasket. The intake runners are polished b= ut NOT enlarged. You want the highest possible intake flow velocity at every RPM. The intake manifold to mount a= Weber 48 IDF has a plenum below each throat so the actual runner length is=  very short. This in turn tunes a bit better at stupid high RPM but wo= rks well enough to deliver good performance above 6,000 RPM. You would not have to add much length beyond the sto= ck lower manifold to be about perfect for aircraft use. The HP is in the ex= haust system. The side port engines have fewer degrees of overlap than does= a Pport (Massive overlap). Renesis has no overlap at all. Smoother the idle for less the overlap.
 
Lynn E. Hanover
Racing rotaries since 1980.     
 
In a message dated 4/11/2016 12:38:17 P.M. Eastern Daylight Time, flyr= otary@lancaironline.net writes:

Actually on paper I’m still the CEO of the com= pany but all the day to day operations are handled by Laura since my retire= ment.  She has been a great business partner.

 

Tracy

 

Sent from Mail for Windows 10

 

From: ARGOLDMAN
Sent: Monday, April 11, 2016 8:29 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Intake Styles and Data

 

 

 

 

Thanks for the link.

 

Actually, The company is owned by Lau= ra, Tracy's EX.  (reminds me of the license plate of a Mercedes, in my= area," WAS HIS"

 

Although they don't have aviation par= ts any more, they still stock a complete line of Tracy's seals, rebuild kit= s etc.

 

Rich

 

In a message dated 4/10/2016 9:28:09 = P.M. Pacific Daylight Time, flyrotary@lancaironline.net writes:

Sorry for lack of detailed info; I was away from home & = pecking at my phone to reply.

Wayback machine:
htt= ps://archive.org/web/

Tracy's old website was:
http://www.rotaryaviation.com/
which no longer has aviation info on it (currently only car performance par= ts under different ownership).

 

=3D
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