X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail28.syd.optusnet.com.au ([211.29.133.169] verified) by logan.com (CommuniGate Pro SMTP 4.3.5) with ESMTPS id 1021186 for flyrotary@lancaironline.net; Sat, 25 Jun 2005 03:44:40 -0400 Received-SPF: none receiver=logan.com; client-ip=211.29.133.169; envelope-from=lendich@optusnet.com.au Received: from george (d220-236-0-190.dsl.nsw.optusnet.com.au [220.236.0.190]) by mail28.syd.optusnet.com.au (8.12.11/8.12.11) with SMTP id j5P7hod0005566 for ; Sat, 25 Jun 2005 17:43:52 +1000 Message-ID: <000901c57959$a7dff610$be00ecdc@george> From: "George Lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Single Rotor Research Date: Sat, 25 Jun 2005 17:44:01 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0006_01C579AD.791C7B60" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 This is a multi-part message in MIME format. ------=_NextPart_000_0006_01C579AD.791C7B60 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable BTW, From the same chap, I got a price on SLOTTING the RX8 Rotor to a depth = of 10mm, and slotting the 3mm slots in a 2mm rotor - $40 per rotor. George (down under) Just got back from visiting a mechanic who has been developing PP and = other racing engines and have some interesting information. It would seem that if you fire the spark plugs simultaneously (as = Tracy does) that gives best performance to 6,000 RPM. However if you = retard the trailing spark plug by ( 1 to 3 degrees) you can gain as = much as 30 hp at 9 to 10K - about 10 hp for every degree. How that = effects our RPM range I don't know ? It would also seem that if you radiused the following edge of the = exhaust outlet, it provides better exhaust flow and less contamination = of the inlet charge at idle. For your digestion! George ( down under) ------=_NextPart_000_0006_01C579AD.791C7B60 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
BTW,
From the same chap, I got a price on = SLOTTING the=20 RX8 Rotor to a depth of 10mm, and slotting the 3mm slots in a 2mm rotor = -=20 $40 per rotor.
George (down under)
 
Just got back from visiting a = mechanic who has=20 been developing PP and other racing engines and have some interesting=20 information.
 
It would seem that if you fire the = spark plugs=20 simultaneously (as Tracy does) that gives best performance to 6,000 = RPM.=20 However if you retard the  trailing spark plug by ( 1 to 3=20 degrees)  you can gain as much as 30 hp at 9 to 10K - about 10 hp = for=20 every degree. How that effects our RPM range I don't know = ?
 
It would also seem that if you = radiused the=20 following edge of the exhaust outlet, it provides better exhaust flow=20 and less contamination of the inlet charge at idle.
For your digestion!
George ( down=20 under)
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