X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imo-m20.mx.aol.com ([64.12.137.1] verified) by logan.com (CommuniGate Pro SMTP 5.1.2) with ESMTP id 1550259 for flyrotary@lancaironline.net; Thu, 09 Nov 2006 23:45:04 -0500 Received-SPF: pass receiver=logan.com; client-ip=64.12.137.1; envelope-from=Lehanover@aol.com Received: from Lehanover@aol.com by imo-m20.mx.aol.com (mail_out_v38_r7.6.) id q.552.65be1ac5 (29678) for ; Thu, 9 Nov 2006 23:44:42 -0500 (EST) From: Lehanover@aol.com Message-ID: <552.65be1ac5.32855dba@aol.com> Date: Thu, 9 Nov 2006 23:44:42 EST Subject: Re: [FlyRotary] Re: P Porting template? To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1163133882" X-Mailer: 9.0 Security Edition for Windows sub 5331 X-Spam-Flag: NO -------------------------------1163133882 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit I have some 12A Pport housings modified by Mandeville. Should be good for 310 HP at 10,200 RPM. I find the Pport in the race car to be more tractable than the bridgport, as it has less port timing. There is nothing close to the Pport for making power. The racer has the same Weber as the bridgeported engine but with two 44mm chokes. A good 13B Pport should do 330 HP at 9,500 RPM. Long runs above that needs very light rotors. I note that the Lamans (Pport)engine was not turned up very tight at all (multi piece crank) and made all the power they needed by just tuning the intake lengths. We only need one RPM for cruise, and enough torque to get us there. How hard can this be? Lynn E. Hanover -------------------------------1163133882 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

I have some 12A Pport housings modified by Mandeville. Should be good f= or=20 310 HP at

10,200 RPM.

I find the Pport in the race car to be more tractable than the bridgpor= t,=20 as it has less port timing. There is nothing close to the Pport for making=20 power. The racer has the same Weber

as the bridgeported engine but with two 44mm chokes. A good 13B Pport=20 should do 330 HP at 9,500 RPM. Long runs above that needs very light rotors.= I=20 note that the Lamans (Pport)engine was not turned up very tight at all (mult= i=20 piece crank) and made all the power they needed by just tuning the intake=20 lengths. We only need one RPM for cruise, and enough torque to get us there.= How=20 hard can this be?

Lynn E. Hanover

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