X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from aspensprings.uwyo.edu ([129.72.10.32] verified) by logan.com (CommuniGate Pro SMTP 5.4.5) with ESMTPS id 5570789 for flyrotary@lancaironline.net; Thu, 31 May 2012 12:16:50 -0400 Received-SPF: none receiver=logan.com; client-ip=129.72.10.32; envelope-from=SBoese@uwyo.edu Received: from ponyexpress-ht4.uwyo.edu (extlb.uwyo.edu [172.26.4.4]) by aspensprings.uwyo.edu (8.14.4/8.14.4) with ESMTP id q4VGG6NS001595 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=FAIL) for ; Thu, 31 May 2012 10:16:15 -0600 (MDT) (envelope-from SBoese@uwyo.edu) Received: from ponyexpress-m10.uwyo.edu ([fe80::60dd:cb9e:6f71:3d48]) by ponyexpress-ht4.uwyo.edu ([fe80::8de7:b225:a85b:d0ee%13]) with mapi id 14.01.0339.001; Thu, 31 May 2012 10:16:08 -0600 From: "Steven W. Boese" To: Rotary motors in aircraft Subject: RE: [FlyRotary] Re: Injector balancing Thread-Topic: [FlyRotary] Re: Injector balancing Thread-Index: AQHNP0aj0mZRxuGNPUeVADW/MwZYd5bkENAP Date: Thu, 31 May 2012 16:16:07 +0000 Message-ID: <3E8191F276108F4481AB0721BBA9269E05C4BA01@ponyexpress-m10.uwyo.edu> References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [75.228.149.119] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Ernest, loads are: one HP fuel pump EC2 4 fuel injectors 4 GM ignition coils engine monitoring system data logging system 2 GPS units Com radio on receive, not transmit intercom 2 axis autopilot strobe lights Dynon D10A EFIS Hobbs There may be others I didn't list. I use an OEM RX7 Mitsubishi alternator and a standby ND alternator that is = normally just a v-belt idler. Steve Boese RV6A, 1986 13B NA, RD1A, EC2 ________________________________________ From: Rotary motors in aircraft [flyrotary@lancaironline.net] on behalf of = Ernest Christley [echristley@att.net] Sent: Thursday, May 31, 2012 9:59 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Injector balancing Steven W. Boese wrote: > Brian, > > I just made measurements on some Mazda OEM fuel injectors. A high > impedence injector draws 0.9 amps continuously at 12 V. A low impedence > injector without a series resistor draws 5 amps continuously at 12 V. > > My 13B requires less than 20 amps continuous current in normal cruise > configuration with the strobes on and one fuel pump in operation. > Steve, what other loads are you running. I'm using the stock injectors, wh= ich are high impedance. My generator is rated for 36A. Keeping the total normal draw below 29A max load was my tar= get. -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.= html=