X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.120] verified) by logan.com (CommuniGate Pro SMTP 5.2.2) with ESMTP id 2900148 for flyrotary@lancaironline.net; Mon, 05 May 2008 20:58:04 -0400 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.120; envelope-from=eanderson@carolina.rr.com Received: from edward2 ([75.191.186.236]) by cdptpa-omta01.mail.rr.com with SMTP id <20080506005726.SYTN19888.cdptpa-omta01.mail.rr.com@edward2> for ; Tue, 6 May 2008 00:57:26 +0000 Message-ID: <001b01c8af14$2e332690$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Renesis First Start Date: Mon, 5 May 2008 20:57:38 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0018_01C8AEF2.A6EF7A10" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 This is a multi-part message in MIME format. ------=_NextPart_000_0018_01C8AEF2.A6EF7A10 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Good point, George. They will regulate your fuel pressure relative to = the manifold pressure once set up, but you do have to decide what delta = pressure you want the regulator to maintain. That may take a bit of = experimenting - I would probably set it up for best idle and trust that = as manifold pressure increased that fuel pressure would also to = compensate. Ed ----- Original Message -----=20 From: George Lendich=20 To: Rotary motors in aircraft=20 Sent: Monday, May 05, 2008 6:14 PM Subject: [FlyRotary] Re: Renesis First Start Ed, How about those automatic adjustable fuel pressure regulators that = work of manifold pressure. George ( down under) ----- Original Message -----=20 From: Ed Anderson=20 To: Rotary motors in aircraft=20 Sent: Monday, May 05, 2008 11:31 PM Subject: [FlyRotary] Re: Renesis First Start If you are using the larger injectors in primary position (like = anything above around 460 cc/min) then idle can get to be a bit on the = rich side, lowering fuel pressure can help out on this end - but the = reduced flow on the top end can cause leaning problems. I fly with 460 cc/min injectors and find that 43 psi gives me the = best all around performance. Larger injectors may do better with = slightly lower pressure. Ed ----- Original Message -----=20 From: Mike Wills=20 To: Rotary motors in aircraft=20 Sent: Sunday, May 04, 2008 11:06 PM Subject: [FlyRotary] Re: Renesis First Start That's interesting. When I was first starting to test my rotary I = had to back the fuel pressure way down to get it to run relatively well. = I'm backed off as far as the Aeromotive regulator will go and indicating = about 33psi. Now that things are running better maybe I should try to = bump it back up a little. I think Dave Leonard told me he had to go down = on pressure as well. What is the consensus opinion? Still some little tuning issues but it's running well enough to = taxi around now. Runs great above 3000 RPM. Maybe a revisit to fuel = pressure will help. Need to find a DAR and get this thing inspected/flying! Mike Wills RV-4 N144MW =20 ----- Original Message -----=20 From: Bobby J. Hughes=20 To: Rotary motors in aircraft=20 Sent: Sunday, May 04, 2008 5:50 PM Subject: [FlyRotary] Renesis First Start Saturday with the help of Mark Steitle I was able to start my = renesis. Had to run higher rpm's to keep to it running. Wideband O2 = showed lean at lower rpm's. Today after adjusting the fuel pressure to = 42 psi (was 30 psi) I was able to idle much lower. My Advanced Flight = System EFIS\ engine monitor fuel injector circuit is not putting out a = tach signal so no idea on the actual rpm's. Two primer clicks and it = starts right up. =20 Bobby J Hughes -------------------------------------------------------------------------= --- No virus found in this incoming message. Checked by AVG.=20 Version: 7.5.524 / Virus Database: 269.23.8/1414 - Release Date: = 4/05/2008 12:31 PM ------=_NextPart_000_0018_01C8AEF2.A6EF7A10 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Good point, George. They will = regulate your=20 fuel pressure relative to the manifold pressure once set up, but = you do=20  have to decide what delta pressure you want the regulator to=20 maintain.  That may take a bit of experimenting - I would probably = set it=20 up for best idle and trust that as manifold pressure increased that fuel = pressure would also to compensate.
 
Ed
----- Original Message -----
From:=20 George=20 Lendich
Sent: Monday, May 05, 2008 6:14 = PM
Subject: [FlyRotary] Re: = Renesis First=20 Start

Ed,
How about those automatic adjustable = fuel=20 pressure regulators that work of manifold pressure.
George ( down = under)
----- Original Message -----
From:=20 Ed Anderson
To: Rotary motors in = aircraft=20
Sent: Monday, May 05, 2008 = 11:31=20 PM
Subject: [FlyRotary] Re: = Renesis First=20 Start

If you are using the larger = injectors in=20 primary position (like anything above around 460 cc/min) then idle = can get=20 to be a bit on the rich side, lowering fuel pressure can help out on = this=20 end - but the reduced flow on the top end can cause leaning=20 problems.
 
I fly with 460 cc/min injectors and = find that=20 43 psi gives me the best all around performance.  Larger = injectors may=20 do better with slightly  lower pressure.
 
Ed
----- Original Message ----- =
From:=20 Mike = Wills=20
To: Rotary motors in = aircraft=20
Sent: Sunday, May 04, 2008 = 11:06=20 PM
Subject: [FlyRotary] Re: = Renesis=20 First Start

That's interesting. When I was = first starting=20 to test my rotary I had to back the fuel pressure way down to get = it to=20 run relatively well. I'm backed off as far as the Aeromotive = regulator=20 will go and indicating about 33psi. Now that things are running = better=20 maybe I should try to bump it back up a little. I think Dave = Leonard told=20 me he had to go down on pressure as well. What is the consensus=20 opinion?
 
Still some little tuning issues = but it's=20 running well enough to taxi around now. Runs great above 3000=20 RPM. Maybe a revisit to fuel pressure will help.
 
Need to find a DAR and get this = thing=20 inspected/flying!
 
Mike Wills
RV-4 = N144MW  
----- Original Message ----- =
From:=20 Bobby J.=20 Hughes
To: Rotary motors in = aircraft=20
Sent: Sunday, May 04, = 2008 5:50=20 PM
Subject: [FlyRotary] = Renesis First=20 Start

Saturday=20 with the help of Mark Steitle I was able to start my renesis. = Had=20 to run higher rpm's to keep to it running. Wideband O2 = showed=20 lean at lower rpm's.  Today after adjusting the fuel = pressure to 42=20 psi (was 30 psi) I was able to idle much lower. My Advanced = Flight=20 System EFIS\ engine monitor fuel injector circuit is not putting = out a tach signal so no idea on the actual rpm's. Two = primer clicks=20 and it starts right up. 
 
Bobby J=20 Hughes
 

No virus found in this incoming message.
Checked by AVG.=20
Version: 7.5.524 / Virus Database: 269.23.8/1414 - Release Date: = 4/05/2008 12:31 PM
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