X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.121] verified) by logan.com (CommuniGate Pro SMTP 5.2.14) with ESMTP id 3679040 for flyrotary@lancaironline.net; Thu, 11 Jun 2009 08:04:25 -0400 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.121; envelope-from=eanderson@carolina.rr.com Received: from computername ([75.191.186.236]) by cdptpa-omta04.mail.rr.com with ESMTP id <20090611120347388.CKCP16114@cdptpa-omta04.mail.rr.com> for ; Thu, 11 Jun 2009 12:03:47 +0000 From: "Ed Anderson" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Injectors quandary. Date: Thu, 11 Jun 2009 08:03:46 -0400 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Office Outlook, Build 11.0.5510 In-Reply-To: Thread-Index: AcnqXf1XJ77oKy3uQiGbt5QEeL8i5wAK7eVw X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 Message-Id: <20090611120347388.CKCP16114@cdptpa-omta04.mail.rr.com> In various of the 13B (Rx-7) service manuals I have the fuel pressure regulator is tested with the top end of pressure ranging from 37.68 psi to 39.8 psi (turbo is up to 57 psi). The lowest value I've seen for the high end (WOT) is around 33 psi. So would appear Tracy's recommendation is in line with what Mazda calls for in the automobile application. However, I agree that the "standard Pressure" that appears most often associated with injector flow rates is around 43 psi. I set my regulator for 43 psi. Ed Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com http://www.andersonee.com http://www.dmack.net/mazda/index.html http://www.flyrotary.com/ http://members.cox.net/rogersda/rotary/configs.htm#N494BW http://www.rotaryaviation.com/Rotorhead%20Truth.htm __________ Information from ESET NOD32 Antivirus, version of virus signature database 3267 (20080714) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com