X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imo-d22.mx.aol.com ([205.188.144.208] verified) by logan.com (CommuniGate Pro SMTP 5.1.10) with ESMTP id 2197279 for flyrotary@lancaironline.net; Tue, 24 Jul 2007 20:57:41 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.188.144.208; envelope-from=Lehanover@aol.com Received: from Lehanover@aol.com by imo-d22.mx.aol.com (mail_out_v38_r9.2.) id q.bcf.1aad0d82 (39330) for ; Tue, 24 Jul 2007 20:57:02 -0400 (EDT) From: Lehanover@aol.com Message-ID: Date: Tue, 24 Jul 2007 20:57:02 EDT Subject: Re: [FlyRotary] Re: carbs vs efi To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1185325022" X-Mailer: 9.0 Security Edition for Windows sub 5366 X-Spam-Flag: NO -------------------------------1185325022 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 7/24/2007 6:12:30 P.M. Eastern Daylight Time, lendich@optusnet.com.au writes: Re your analysis comparing side ports with p ports, I wonder if such an analysis is even possible as they are quite different.? Anyway, I doubt that a standard port can deliver 100 hp or a street port 130 hp. per rotor, certainly not when limited to 7500 rpm.? Of course I am only guessing.? No real knowledge or experience.?? From a Daryl Drummond dyno sheet for a 12A bridge ported running 36MM chokes. One per housing. 6,500 RPM 139.6 Torque 173.3 HP 7,000 RPM 147.6 Torque 196.9 HP 7,500 RPM 152.6 Torque 218.2 HP Front EGT 1518/ Rear EGT 1492/ BSFC .671 oil 164/ pressure 100.1 F/A 12.1 Main 210/ air .80. A Pport with a slightly larger choke would better. A 13B Pport would do still better. A 13B Pport injected would do much better. Lynn E. Hanover ************************************** Get a sneak peek of the all-new AOL at http://discover.aol.com/memed/aolcom30tour -------------------------------1185325022 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
In a message dated 7/24/2007 6:12:30 P.M. Eastern Daylight Time,=20 lendich@optusnet.com.au writes:
<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>
Re your analysis comparing side ports with p ports, I wonder if such=20= an=20 analysis is even possible as they are quite different.? Anyway, I doubt th= at a=20 standard port can deliver 100 hp or a street port 130 hp. per rotor, certa= inly=20 not when limited to 7500 rpm.? Of course I am only guessing.? No real=20 knowledge or experience.??
From a Daryl Drummond dyno sheet for a 12A bridge ported running 36MM=20 chokes. One per housing.
 
6,500 RPM 139.6 Torque 173.3 HP
7,000 RPM 147.6 Torque  196.9 HP
7,500 RPM 152.6  Torque  218.2 HP Front EGT 1518/ Rear EGT 14= 92/=20 BSFC .671 oil 164/ pressure 100.1
 
F/A 12.1
 
Main 210/ air .80. A Pport with a slightly larger choke would better. A= 13B=20 Pport would do still better.
 
A 13B Pport injected would do much better.
 
Lynn E. Hanover



Get a= sneak peek of the all-new AOL.com.
-------------------------------1185325022--