Return-Path: <13brv3@bellsouth.net> Received: from imf24aec.mail.bellsouth.net ([205.152.59.72] verified) by logan.com (CommuniGate Pro SMTP 4.2.5) with ESMTP id 593573 for flyrotary@lancaironline.net; Thu, 06 Jan 2005 13:28:27 -0500 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.72; envelope-from=13brv3@bellsouth.net Received: from rd ([65.6.194.9]) by imf24aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with ESMTP id <20050106182758.LCSG2032.imf24aec.mail.bellsouth.net@rd> for ; Thu, 6 Jan 2005 13:27:58 -0500 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: P-Port stuff- was Re: RV-3 engine rebuild Date: Thu, 6 Jan 2005 12:28:11 -0600 Message-ID: <00a201c4f41d$7a9aa2c0$6101a8c0@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00A3_01C4F3EB.300032C0" 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 V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_00A3_01C4F3EB.300032C0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable My p ports open at 78=BA BTDC and close at 75=BA ABDC. This drawing = shows how much later the ports open in comparison with the Leman P Port and how = they close at nearly the same time. According to calculations made by Rolf Peiffer who helped me a lot, my little port has sufficient capacity up = to 8000 rpm. After that you would want to go bigger. The exhaust port was = left stock with the splitters in. . Jerry=20 =20 Thanks for the info, and pic Jerry. Do you have an estimate of how much = HP you expect to make at 7500 rpm? And can you get that thing running in = the next month, so it will be easier for me to decide what to do :-) =20 Cheers, Rusty =20 =20 ------=_NextPart_000_00A3_01C4F3EB.300032C0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
My p ports open at 78=BA BTDC and close at 75=BA ABDC. This drawing = shows how=20 much later the ports open in comparison with the Leman P Port and how = they close=20 at nearly the same time. According to calculations made by Rolf Peiffer = who=20 helped me a lot, my little port has sufficient capacity up to 8000 rpm. = After=20 that you would want to go bigger. The exhaust port was left stock with = the=20 splitters in. . Jerry 
 
Thanks for=20 the info, and pic Jerry.  Do you have an estimate of how much = HP you=20 expect to make at 7500 rpm?  And can you get that thing running in = the next=20 month, so it will be easier for me to decide what to=20 do :-)
 
Cheers,
Rusty
 
 
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