X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mx2.netapp.com ([216.240.18.37] verified) by logan.com (CommuniGate Pro SMTP 5.4.0) with ESMTPS id 5026273 for flyrotary@lancaironline.net; Mon, 20 Jun 2011 12:38:05 -0400 Received-SPF: none receiver=logan.com; client-ip=216.240.18.37; envelope-from=echristley@att.net X-IronPort-AV: E=Sophos;i="4.65,395,1304319600"; d="scan'208";a="556940848" Received: from smtp1.corp.netapp.com ([10.57.156.124]) by mx2-out.netapp.com with ESMTP; 20 Jun 2011 09:37:28 -0700 Received: from [10.62.16.155] (minint-e4qqddd0 [10.62.16.155] (may be forged)) by smtp1.corp.netapp.com (8.13.1/8.13.1/NTAP-1.6) with ESMTP id p5KGbReH007642 for ; Mon, 20 Jun 2011 09:37:28 -0700 (PDT) Message-ID: <4DFF7742.7070809@att.net> Date: Mon, 20 Jun 2011 12:37:22 -0400 From: Ernest Christley Reply-To: echristley@att.net User-Agent: Thunderbird 2.0.0.24 (X11/20100623) MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Filterless Values of MAP FlyRotary] Re: Blower does work References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Ed Anderson wrote: > Regarding the Filterless values - in looking at your photo, if all you > do is remove the filter and leave the curved intake tube in place - then > what you may be getting is a prop effect of the wind blast past the end > of the tube - causing a possible lowering of pressure in the tube > (siphoning out the air trying to go down the tube) - just a WAG. > Not a bad WAG. What I actually did was remove the elbow with the filter. The throttle body was bare, sucking straight from the prop "blast", or at least what there was of a blast. It would make sense that the MAP sensor would be wide open to wild fluctuations.