X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao107.cox.net ([68.230.241.39] verified) by logan.com (CommuniGate Pro SMTP 5.2.2) with ESMTP id 2893983 for flyrotary@lancaironline.net; Mon, 05 May 2008 09:43:00 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.241.39; envelope-from=alventures@cox.net Received: from fed1rmimpo01.cox.net ([70.169.32.71]) by fed1rmmtao107.cox.net (InterMail vM.7.08.02.01 201-2186-121-102-20070209) with ESMTP id <20080505134218.MTBX10668.fed1rmmtao107.cox.net@fed1rmimpo01.cox.net> for ; Mon, 5 May 2008 09:42:18 -0400 Received: from BigAl ([72.192.137.74]) by fed1rmimpo01.cox.net with bizsmtp id MpiK1Z0031cVYgg03piKym; Mon, 05 May 2008 09:42:19 -0400 From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: Fuel pressure Date: Mon, 5 May 2008 05:46:40 -0800 Message-ID: <000001c8aeb6$7251e630$6401a8c0@BigAl> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C8AE73.642EA630" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C8AE73.642EA630 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable =20 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? =20 I originally installed a pressure regulator that was not manifold = pressure referenced (normal for NA engine). After the first runs I learned that = the EC2 was set up assuming MAP referenced pressure. I replaced the = regulator and set it for 40 psig with engine off (about the same as WOT). At idle (MAP of 10-11") the pressure is about 33-34. Works fine. =20 Al =20 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. =20 Need to find a DAR and get this thing inspected/flying! =20 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 =20 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 =20 Bobby J Hughes =20 ------=_NextPart_000_0001_01C8AE73.642EA630 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

 

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?

 

I originally installed a pressure regulator that was not manifold pressure referenced (normal for NA = engine). After the first runs I learned that the EC2 was set up assuming MAP = referenced pressure. I replaced the regulator and set it for 40 psig with engine = off (about the same as WOT).  At idle (MAP of 10-11”) the pressure = is about 33-34.  Works fine.

 

Al

 

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  

=

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

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. 

 

Bobby J = Hughes

 

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