X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail13.syd.optusnet.com.au ([211.29.132.194] verified) by logan.com (CommuniGate Pro SMTP 4.3.3) with ESMTPS id 970977 for flyrotary@lancaironline.net; Tue, 31 May 2005 17:59:27 -0400 Received-SPF: none receiver=logan.com; client-ip=211.29.132.194; envelope-from=lendich@optusnet.com.au Received: from george (d220-236-25-37.dsl.nsw.optusnet.com.au [220.236.25.37]) by mail13.syd.optusnet.com.au (8.12.11/8.12.11) with SMTP id j4VLwcoQ029556 for ; Wed, 1 Jun 2005 07:58:39 +1000 Message-ID: <009401c5662c$985ccd20$2519ecdc@george> From: "George Lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: RX-8 6 port Intake - Like, complicated.... Date: Wed, 1 Jun 2005 08:03:36 +1000 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit 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 Bill, There are a whole range of counterweights for different years. Your best bet is the nearest Mazda engine rebuilder - they usually carry a lot of different 2nd hand parts. George ( down under) > At 12:32 PM 5/31/2005, you wrote: > >Is the 4 port from the automatic and the 6 port from the 6 speed manual? > >Jeff > > The 6 port is rated at 247 HP, 159 ft-lb peak torque, 9000 RPM > max. The 4 port is rated 207 HP, 164 ft-lb peak torque, 7500 RPM max. > > The automatic transmission won't stand for the 9000 RPM, so the > six port is only available with a manual transmission. > > > >Tracy Crook wrote: > >>Yep, that was a big factor in why I chose the 4 port "low power" > >>engine. Much simpler manifold requirements. > > Six runners will, indeed, be a challenge. > > > Did your RX-8 counterweight look any different from and RX-7 > counterweight? How can I tell the difference? I bought a counterweight, and > I want to know some way to make sure it is the correct one for my engine. > > What does the RX-7 counterweight weigh? > > Thanks in advance, > > Bill Dube' > > > > >> Homepage: http://www.flyrotary.com/ > >> Archive: http://lancaironline.net/lists/flyrotary/List.html >