X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from rv-out-0506.google.com ([209.85.198.231] verified) by logan.com (CommuniGate Pro SMTP 5.2.12) with ESMTP id 3454177 for flyrotary@lancaironline.net; Mon, 26 Jan 2009 22:48:40 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.198.231; envelope-from=david.staten@gmail.com Received: by rv-out-0506.google.com with SMTP id f6so7028258rvb.7 for ; Mon, 26 Jan 2009 19:48:04 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from :user-agent:mime-version:to:subject:references:in-reply-to :content-type:content-transfer-encoding; bh=ubUYvm52xO0PsOWqgr8x68vVqSd42p+JfXZ7JeGY2Xc=; b=pyWVMrgEDv8cr6d5JPKInwreJtfdtvb1P06ffBFO7oLPaFSQdOoe5ni/HFBFICQBDg z6IZZnjeeMLBOAcmcjEYUNtpMy/15g/rB6rEd0nCYzKYbkhNV97E6u8Qw1/gyaX+0jFy RqDKAgDh472z/IBTiXpg8pJ35w9WNXN3Knylc= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:subject:references :in-reply-to:content-type:content-transfer-encoding; b=h4Wsz6FstVtJ4FLv3AreM63UGnK4ynbgb/+WI8Qr6ELnbDgDhp7jKOqu3S3LyT60lW 6Dbi/kuetwnsY8nKMKmwWtW6cR75qlo0xZFg8ztM6KAEmOc/mx/f4mn1q0JEpKNoDlhD IZr792KF0LmQHjfxWPhrblQ9M8vSrSdjLgX8E= Received: by 10.142.135.16 with SMTP id i16mr2024953wfd.192.1233028084509; Mon, 26 Jan 2009 19:48:04 -0800 (PST) Return-Path: Received: from ?192.168.1.100? ([216.80.140.47]) by mx.google.com with ESMTPS id 22sm31906472wfg.50.2009.01.26.19.48.02 (version=TLSv1/SSLv3 cipher=RC4-MD5); Mon, 26 Jan 2009 19:48:03 -0800 (PST) Message-ID: <497E83EA.5030407@gmail.com> Date: Mon, 26 Jan 2009 21:47:54 -0600 From: David Staten User-Agent: Thunderbird 2.0.0.19 (Windows/20081209) MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: Frying pan into the fire....Arrgh References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Bill Eslick wrote: > _Does anyone know if there is value in street porting if 6000 rpm is > the highest you will see?_ Lynn?? > > Bill Eslick Absolutely. Porting lets the motor breath easier, less friction losses through the ported area. Your results may not be as large as someone running 8000 rpm, but you will have an improvement in the engines volumetric efficiency. If you have it torn open, nows a perfect time to get it done. Dave