X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao105.cox.net ([68.230.241.41] verified) by logan.com (CommuniGate Pro SMTP 5.2.3) with ESMTP id 2961928 for flyrotary@lancaironline.net; Tue, 10 Jun 2008 14:39:34 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.241.41; envelope-from=alventures@cox.net Received: from fed1rmimpo03.cox.net ([70.169.32.75]) by fed1rmmtao105.cox.net (InterMail vM.7.08.02.01 201-2186-121-102-20070209) with ESMTP id <20080610183848.DDMZ4466.fed1rmmtao105.cox.net@fed1rmimpo03.cox.net> for ; Tue, 10 Jun 2008 14:38:48 -0400 Received: from BigAl ([72.192.137.74]) by fed1rmimpo03.cox.net with bizsmtp id cJev1Z00i1cVYgg04Jevde; Tue, 10 Jun 2008 14:38:55 -0400 From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Sensors Date: Tue, 10 Jun 2008 11:38:57 -0800 Message-ID: <000901c8cb31$a0111810$6401a8c0@BigAl> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000A_01C8CAEE.91EDD810" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 In-Reply-To: Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 This is a multi-part message in MIME format. ------=_NextPart_000_000A_01C8CAEE.91EDD810 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Gentlemen; Getting ready for plumbing, initial wiring, gearing up for first start. Where is the best place to locate a MAP sensor in a turbo 20B, in the = air box, or closer to a port? Are there any hard and fast rules about this? = =20 Greg Ward =20 Greg; =20 Closer to the ports gives you lots of pulses in the signal. I expect = this is not good for the ECU, and I know it is not good for the MAP = referenced fuel pressure regulator. The MAP sensing is close to the ports on my = setup, and I had to install signal damping. I don't know your configuration, = but if you have a single TB feeding an air box, I'd put it in the air box. =20 Al G ------=_NextPart_000_000A_01C8CAEE.91EDD810 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Gentlemen;

Getting ready for plumbing, = initial wiring, gearing up for first start. Where is the best place to = locate a MAP sensor in a turbo 20B, in the air box, or closer to a port? = Are there any hard and fast rules about this?

Greg Ward

Greg;

Closer to the ports gives you = lots of pulses in the signal. I expect this is not good for the ECU, and I = know it is not good for the MAP referenced fuel pressure regulator. The = MAP sensing is close to the ports on my setup, and I had to install signal = damping. I don’t know your configuration, but if you have a single TB = feeding an air box, I’d put it in the air box.

Al G

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