X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: <13brv3@bellsouth.net> Received: from imf19aec.mail.bellsouth.net ([205.152.59.67] verified) by logan.com (CommuniGate Pro SMTP 4.3c5) with ESMTP id 931581 for flyrotary@lancaironline.net; Tue, 03 May 2005 17:17:51 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.67; envelope-from=13brv3@bellsouth.net Received: from rd ([65.6.194.9]) by imf19aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with ESMTP id <20050503211705.SOOJ2470.imf19aec.mail.bellsouth.net@rd> for ; Tue, 3 May 2005 17:17:05 -0400 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Static MAP readings? Date: Tue, 3 May 2005 16:17:16 -0500 Message-ID: <037b01c55025$7b95bcf0$6101a8c0@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_037C_01C54FFB.92BFB4F0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2527 In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_037C_01C54FFB.92BFB4F0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Yes. I was just thinking that it might be measurement error caused by high velocity flow through the TB. If the pressure drops when there is absolutely no restriction, wouldn't that make it a non-issue? Just instrument error that could be ignored? =20 What are you calling a restriction? I've run the engine with = essentially nothing on the outside of the throttle body. Since the engine is = causing the motivating force for the airflow, I can't see it as a restriction. = The MAP ports are on the TB, so no other intake pipe factors into it as far = as I can see. Isn't my engine already acting as a blower (sucker)? =20 =20 Cheers, Rusty=20 ------=_NextPart_000_037C_01C54FFB.92BFB4F0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message

Yes.  I was just thinking that it might be = measurement=20 error caused by
high velocity flow through the TB.  If the = pressure=20 drops when there is
absolutely no restriction, wouldn't that make it = a=20 non-issue?  Just
instrument error that could be = ignored?

 
What are = you calling a=20 restriction?  I've run the engine with essentially nothing on the = outside=20 of the throttle body.  Since the engine is causing the motivating = force for=20 the airflow, I can't see it as a restriction.  The MAP ports are on = the TB,=20 so no other intake pipe factors into it as far as I can see.  Isn't = my=20 engine already acting as a blower (sucker)? 
 
Cheers,
Rusty 
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