X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from smtp0.av-mx.com ([137.118.16.56] verified) by logan.com (CommuniGate Pro SMTP 5.4.0) with ESMTP id 5063180 for flyrotary@lancaironline.net; Mon, 25 Jul 2011 21:06:40 -0400 Received-SPF: pass receiver=logan.com; client-ip=137.118.16.56; envelope-from=res12@fairpoint.net Received: from main (dflo-66-243-231-69.gtcom.net [66.243.231.69]) (Authenticated sender: res12@fairpoint.net) by smtp0.av-mx.com (Postfix) with ESMTP id 052931C0364 for ; Mon, 25 Jul 2011 21:06:04 -0400 (EDT) Message-ID: <8680BA40E6964E0E8E172316C963117A@main> From: "Richard Sohn" To: "FlyROTARY" Subject: Quiet Date: Mon, 25 Jul 2011 20:06:27 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0053_01CC4B06.56084010" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6109 This is a multi-part message in MIME format. ------=_NextPart_000_0053_01CC4B06.56084010 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I thought I squeeze some Single Rotor update in while it is quiet.=20 The engine is back on the test stand with two major modifications. The = first one is the fix for a earlier described coolant flow problem. The = second one is a tamed down and improved PP arrangement. My P-Port timing was, as I would call it "very aggressive". Such as a = large crossection and very early opening time. It produced a lot of = power, but I could not make it run as smooth as I wanted below 3000 RPM. = At the same time, I tried to get acquainted with the AROVEE Throttle = Body injector. The configuration I have now is more what Mark has on his 3-rotor, = including the welded insert. Thanks Mark for coming up with that idea!=20 The improvements showed up rightaway on the first test run. Injector = tuning was a one step issue, and it idles without a miss at 2000 RPM. = Have not pushed for how much lower it will go yet.=20 One more test run with about 20 minutes at 5000 RPM, and the mods will = be transferred to the flight fest engine.=20 Before that, I am going to SanAntonio for a few days, helping a family = member Marine who got beat up in AF getting back on his feet.=20 Richard Sohn N2071U www.fairpoint.net/~res12/home.html ------=_NextPart_000_0053_01CC4B06.56084010 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
I thought I squeeze some = Single Rotor=20 update in while it is quiet.
The engine is back on the test = stand with=20 two major modifications. The first one is the fix for a earlier = described=20 coolant flow problem. The second one is a tamed down and improved PP=20 arrangement.
My P-Port timing was, as I = would call=20 it "very aggressive". Such as a large crossection and very early opening = time.=20 It produced a lot of power, but I could not make it run as smooth as I = wanted=20 below 3000 RPM. At the same time, I tried to get acquainted with the = AROVEE=20 Throttle Body injector.
The configuration I have now is = more what=20 Mark has on his 3-rotor, including the welded insert. Thanks Mark for = coming up=20 with that idea!
The improvements showed up = rightaway on the=20 first test run. Injector tuning was a one step issue, and it idles = without a=20 miss at 2000 RPM. Have not pushed for how much lower it will go yet.=20
One more test run with about 20 = minutes at=20 5000 RPM, and the mods will be transferred to the flight fest engine.=20
Before that, I = am going to=20 SanAntonio for a few days, helping a family member Marine who got beat = up in AF=20 getting back on his feet.
 
Richard Sohn
N2071U
www.fairpoint.net/~res= 12/home.html
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