X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.122] verified) by logan.com (CommuniGate Pro SMTP 5.2.5) with ESMTP id 3036318 for flyrotary@lancaironline.net; Mon, 21 Jul 2008 19:42:47 -0400 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.122; envelope-from=eanderson@carolina.rr.com Received: from computername ([75.191.186.236]) by cdptpa-omta03.mail.rr.com with ESMTP id <20080721234208.OSZS4153.cdptpa-omta03.mail.rr.com@computername> for ; Mon, 21 Jul 2008 23:42:08 +0000 From: "Ed Anderson" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: exhaust manifold Date: Mon, 21 Jul 2008 19:42:13 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0044_01C8EB69.DFB78960" X-Mailer: Microsoft Office Outlook, Build 11.0.5510 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5512 Thread-Index: AcjrRbRIGMaqSZtoThGZPM/1MtwOIQARMHCw In-Reply-To: Message-Id: <20080721234208.OSZS4153.cdptpa-omta03.mail.rr.com@computername> This is a multi-part message in MIME format. ------=_NextPart_000_0044_01C8EB69.DFB78960 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Michael, while a good idea, the only down side, I see is weight. Early on in my build of my RV-6A, I made an "improvement' here or there - I mean they only added an couple ounces or half a pound, etc. Well an ounce at a time, I was horrified to find out at the end, that my plane end up 120 lbs over Van's recommended target weight. Now 44 lbs of that were batteries, but even so weight is the "performance Killer!" . I initially thought my good friend, Tracy Crook, was ..well, somewhat fanatical about weight and some of the "extremes" he went to avoid and ounce of weight - well, no longer. I have watch the performance of my aircraft improve as I took off pound after pound. But, trust me it's a lot harder to take off (Hummm, applies to weight on all objects apparently - thinking of my own body {:>) than it is to avoid in the first place. Sometimes, there are certainly other considerations (safety for one) that override weight consideration - but, in my book, that is about the only one (well, perhaps cost {:>)) Ed Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com http://www.andersonee.com http://members.cox.net/rogersda/rotary/configs.htm#N494BW http://www.dmack.net/mazda/index.html _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Michael Silvius Sent: Monday, July 21, 2008 12:22 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: exhaust manifold Kelly: No right now I am aiming for a carbureted system. Preferably gravity fed for absolute simplicity. I really don't think I'd ever want a turbo and the inherent additional complexity involved. Aiming to keep it real basic. I have a couple of old NOS dual points distributors. I do have a set up made up as Tracy's early 3 Mikunni system but do not rule out a EC2 system down the road. The 155 hp is more than plenty and even perhaps over the top for the Falconar F12. Right now I am not even sure that manifold will clear my engine mount. That again is as Tracy's early set up. I have a message in to the vendor for some dimensions. Michael in Maine ----- Original Message ----- From: Kelly Troyer Michael, Other than the loss of exhaust scavenging and the resulting slight loss of power as Ernest mentioned there should be no down side and 155 hp should not be a problem with an efficient intake system ....Are you going with fuel injection ??............ -- __________ Information from ESET NOD32 Antivirus, version of virus signature database 3267 (20080714) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com ------=_NextPart_000_0044_01C8EB69.DFB78960 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Michael, while a good idea, the = only down side, I see is weight.

 

 Early on in my build of my = RV-6A, I made an “improvement’ here or there – I mean they only = added an couple ounces or half a pound, etc.  Well an ounce at a time, I = was horrified to find out at the end,  that my plane end up 120 lbs = over Van’s recommended target weight.  Now 44 lbs of that were batteries, but = even so weight is the “performance Killer!”  . =

 

I initially thought my good friend, = Tracy Crook, was ….well, somewhat fanatical about weight and some of the = “extremes” he went to avoid and ounce of weight – well, no longer.  =

 

I have watch the performance of my aircraft improve as I took off pound after pound.  But, trust me = it’s a lot harder to take off (Hummm, applies to weight on all objects =  apparently – thinking of my own body {:>) than it is to avoid in the first = place.

 

Sometimes, there are certainly = other considerations (safety for one) that override weight consideration = – but, in my book, that is about the only one (well, perhaps cost = {:>))

 

Ed

 

Ed Anderson

Rv-6A N494BW Rotary = Powered

Matthews, NC

eanderson@carolina.rr.com=

http://www.andersonee.com

http://members.cox.net/rogersda/rotary/configs.htm#N494BW

http://www.dmack.net/mazda/index.html<= font size=3D2 face=3DArial>

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Michael Silvius
Sent: Monday, July 21, = 2008 12:22 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: = exhaust manifold

 

Kelly:

 

No right now I am aiming for a carbureted system. = Preferably gravity fed for absolute simplicity. I really don't think I'd ever want = a turbo and the inherent additional complexity involved. Aiming to keep it real basic. I have a couple of old NOS dual points distributors. I = do have a set up made up as Tracy's early 3 Mikunni system but do not rule out a EC2 system down the road. = The 155 hp is more than plenty and even perhaps over the top for the = Falconar F12.

 

Right now I am not even sure that manifold will clear = my engine mount. That again is as Tracy's early set up. I have a message in to the vendor for some dimensions. =

 

Michael in Maine

 

 

----- Original Message ----- =

From: Kelly Troyer =

 

  = Michael,

      Other than the loss of exhaust scavenging and the resulting slight

loss of power as Ernest mentioned there  should be no down side and

155 hp should not be a problem with an efficient intake system ....Are

you going with fuel injection = ??............

--



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The message was checked by ESET NOD32 Antivirus.

http://www.eset.com

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