Return-Path: <13brv3@bellsouth.net> Received: from imf20aec.mail.bellsouth.net ([205.152.59.68] verified) by logan.com (CommuniGate Pro SMTP 4.2b2) with ESMTP id 3196102 for flyrotary@lancaironline.net; Wed, 28 Apr 2004 17:45:44 -0400 Received: from rad ([65.0.136.203]) by imf20aec.mail.bellsouth.net (InterMail vM.5.01.06.08 201-253-122-130-108-20031117) with ESMTP id <20040428214539.IEHU1702.imf20aec.mail.bellsouth.net@rad> for ; Wed, 28 Apr 2004 17:45:39 -0400 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Fw: Air Fuel Mixture Display Date: Wed, 28 Apr 2004 16:45:41 -0500 Message-ID: <000001c42d6a$27454190$6001a8c0@rad> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C42D40.3E6F3990" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.4510 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C42D40.3E6F3990 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Just read about an extended range O2 sensor in the Turbo Magazine. It is mentioned in connection with a mixture measuring gadget. Ever heard of = that? could this mean anything for our use? Or is it like any other O2 sensor. = The gadget is offered by INNOVATE MOTORSPORTS. Richard Sohn Hi Richard, =20 I've heard those sensors referred to as "wideband" sensors. I have an = FJO unit in the RX-7 (which I'm keeping now that I'm still employed) that is accurate from 10:1 to 20:1 ratios. These are expensive, with the = sensors going for about $160. There is a DIY wideband outfit "down under" somewhere, that sells kits to build your own unit much cheaper, though = the sensors are still the same price. =20 =20 In the car, it's great, because we set the AFR for about 11.5:1 under = boost, which can't be accurately read by a normal sensor. At light throttle, = the ratio is sometimes pegged at 20:1. I talked to Tracy about using one of these in the plane, but he convinced me that it wasn't worth the money, since the normal sensor does fine with the EC-2, and EM-2. Also, going through a $20 sensor every couple hundred hours due to lead = contamination isn't a problem, but spending $160 for new sensors would be painful.=20 =20 Cheers, Rusty (my prop hub is bare)=20 ------=_NextPart_000_0001_01C42D40.3E6F3990 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message

Just read about an extended range O2 sensor in the = Turbo=20 Magazine. It is mentioned in connection with a mixture measuring gadget. = Ever=20 heard of that? could this mean anything for our use? Or is it like any = other O2=20 sensor. The gadget is offered by INNOVATE MOTORSPORTS.

Richard=20 Sohn

Hi=20 Richard,
 
I've = heard those sensors=20 referred to as "wideband" sensors.  I have an FJO unit in the RX-7 = (which=20 I'm keeping now that I'm still employed) that is accurate from 10:1 to = 20:1=20 ratios.  These are expensive, with the sensors going for about = $160. =20 There is a DIY wideband outfit "down under" somewhere, that sells kits = to build=20 your own unit much cheaper, though the sensors are still the same = price. =20
 
In the = car, it's great,=20 because we set the AFR for about 11.5:1 under boost, which can't be = accurately=20 read by a normal sensor.  At light throttle, the ratio is sometimes = pegged=20 at 20:1.  I talked to Tracy about using one of these in the plane, = but he=20 convinced me that it wasn't worth the money, since the normal sensor = does fine=20 with the EC-2, and EM-2.  Also, going through a $20 sensor every = couple=20 hundred hours due to lead contamination isn't a problem, but spending = $160=20 for new sensors would be painful. 
 
Cheers,
Rusty = (my prop hub is=20 bare) 




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