Return-Path: Received: from out005.verizon.net ([206.46.170.143] verified) by logan.com (CommuniGate Pro SMTP 4.2.5) with ESMTP id 569984 for flyrotary@lancaironline.net; Thu, 16 Dec 2004 12:07:11 -0500 Received-SPF: pass receiver=logan.com; client-ip=206.46.170.143; envelope-from=rotary.coot@verizon.net Received: from [67.225.117.20] ([67.225.117.159]) by out005.verizon.net (InterMail vM.5.01.06.06 201-253-122-130-106-20030910) with ESMTP id <20041216170633.EVYC28362.out005.verizon.net@[67.225.117.20]> for ; Thu, 16 Dec 2004 11:06:33 -0600 Mime-Version: 1.0 X-Sender: res0c5l1@incoming.verizon.net Message-Id: In-Reply-To: References: Date: Thu, 16 Dec 2004 09:11:40 -0800 To: "Rotary motors in aircraft" From: Ken Welter Subject: Re: [FlyRotary] Ellison vs EFI Content-Type: multipart/alternative; boundary="============_-1108905381==_ma============" X-Authentication-Info: Submitted using SMTP AUTH at out005.verizon.net from [67.225.117.159] at Thu, 16 Dec 2004 11:06:30 -0600 --============_-1108905381==_ma============ Content-Type: text/plain; charset="us-ascii" ; format="flowed" I talked to then many years ago as I was thinking about one but the only one they offered had a 1.5 inch bore and that just ain't going to flow enough air for the rotary so you would need two of them at double the cost. Ken Welter >Greetings, > >As I ponder what I might do differently "next time", I have to >wonder if I might not consider an Ellison throttle body rather than >EFI. I had one of these on my RV-8, and it worked beautifully. >It's simple, reliable, had great throttle response, and good mixture >control. It also only requires 5-6 psi of fuel pressure, and no >return line (usually). The downside is the cost, which is about >$1650 for the EFS-4-5. > >I don't personally care for traditional carbs, and the Ellison is >certainly not a traditional carb. As well as it atomizes fuel, and >as controllable as the mixture is, I can't see why it wouldn't >produce as much power as the EFI system. > >Has anyone tried one of these on a rotary? Any thoughts on the subject? > >Cheers, >Rusty (getting nervous about high pressure fluids that burn) > --============_-1108905381==_ma============ Content-Type: text/html; charset="us-ascii" Re: [FlyRotary] Ellison vs EFI
  I talked to then many years ago as I was thinking about one but the only one they offered had a 1.5 inch bore and that just ain't going to flow enough air for the rotary so you would need two of them at double the cost.
  Ken Welter




Greetings,
 
As I ponder what I might do differently "next time", I have to wonder if I might not consider an Ellison throttle body rather than EFI.  I had one of these on my RV-8, and it worked beautifully.  It's simple, reliable, had great throttle response, and good mixture control.  It also only requires 5-6 psi of fuel pressure, and no return line (usually).  The downside is the cost, which is about $1650 for the EFS-4-5. 
 
I don't personally care for traditional carbs, and the Ellison is certainly not a traditional carb.  As well as it atomizes fuel, and as controllable as the mixture is, I can't see why it wouldn't produce as much power as the EFI system. 
 
Has anyone tried one of these on a rotary?  Any thoughts on the subject?
 
Cheers,
Rusty (getting nervous about high pressure fluids that burn)
 

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