X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 11 Dec 2008 21:51:30 -0500 Message-ID: X-Original-Return-Path: Received: from iron8.midco.net ([24.220.0.94] verified) by logan.com (CommuniGate Pro SMTP 5.2.10) with ESMTP id 3354079 for lml@lancaironline.net; Wed, 10 Dec 2008 23:36:04 -0500 Received-SPF: none receiver=logan.com; client-ip=24.220.0.94; envelope-from=zoelt@sio.midco.net X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Au0pAEMnQEkY3KiHPGdsb2JhbACCQyyGEIEAiEd9AQEBATUBs2mCdw X-IronPort-AV: E=Sophos;i="4.33,750,1220245200"; d="scan'208,217";a="277019642" Received: from host-135-168-220-24.midco.net (HELO YOUR105B4D3942) ([24.220.168.135]) by out.vip.midco.net with ESMTP; 10 Dec 2008 22:35:28 -0600 From: X-Original-To: "'Lancair Mailing List'" References: Subject: RE: [LML] Re: Cabin heat LNC4 X-Original-Date: Wed, 10 Dec 2008 22:35:45 -0600 X-Original-Message-ID: <000401c95b49$ef25c560$6401a8c0@YOUR105B4D3942> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0005_01C95B17.A48B5560" X-Mailer: Microsoft Office Outlook 11 Thread-Index: AclbHYrxAQh6USqaS+O8nIh/qMDTJAALFHaw In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3350 X-Antivirus: avast! (VPS 000737-2, 04/30/2007), Outbound message X-Antivirus-Status: Clean This is a multi-part message in MIME format. ------=_NextPart_000_0005_01C95B17.A48B5560 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Thanks Barry, I'll be checking the venturis. Tim _____ From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of F. Barry Knotts Sent: Wednesday, December 10, 2008 5:18 PM To: lml@lancaironline.net Subject: [LML] Re: Cabin heat LNC4 I have a major increase in air flow , pressure(relieved by relief valve), and noise when I select cabin heat or defrost air. Should this air be reduced by venturis in warm-side pressure hoses from the intecooler? Thanks, Tim LNC4, N524JG Tim, in working over the intercoolers and baffling system on my Lancair prepared TSIO-550 I found that the sonic venturis that were on the "hot" side of the intercoolers were installed backwards. The sonic venturi should be found attached to a nipple that comes off the input side (aft side) of the intercooler. It would be possible to either leave these out or turn them around backwards. I don't know the effect of turning them around. I never flew with it installed backwards. Here are a couple of images of the sonic venturi. Some of the sonic venturis have an arrow scratched onto them to show flow direction. The image here has the sonic venturi installed BACKWARDS. I have also attached a drawing to show the correct orientation for flow. In order to know which way they go, you must either have an arrow on the venturi or take them off entirely to visualize the internal contours to get the orientation right. Barry Knotts LIV-P, Conti TSIO-550 ------=_NextPart_000_0005_01C95B17.A48B5560 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Thanks = Barry,

I’ll be checking the = venturis.

Tim

 

From: Lancair Mailing = List [mailto:lml@lancaironline.net] On = Behalf Of F. Barry Knotts
Sent: Wednesday, December = 10, 2008 5:18 PM
To: = lml@lancaironline.net
Subject: [LML] Re: Cabin = heat LNC4

 

I have a major increase in air flow , pressure(relieved by relief valve), and noise when I select cabin heat = or defrost air.  Should this air be reduced by venturis in warm-side = pressure hoses from the intecooler?

 

Thanks,

Tim

LNC4,  = N524JG

Tim, in working over the intercoolers and = baffling system on my Lancair prepared TSIO-550 I found that the sonic venturis = that were on the "hot" side of the intercoolers were installed backwards.  The sonic venturi should be found attached to a nipple = that comes off the input side (aft side) of the intercooler.  It would = be possible to either leave these out or turn them around backwards.  = I don't know the effect of turning them around.  I never flew with it = installed backwards.  Here are a couple of images of the sonic venturi.  = Some of the sonic venturis have an arrow scratched onto them to show flow direction.  The image here has the sonic venturi installed = BACKWARDS. I have also attached a drawing to show the correct orientation for = flow.  In order to know which way they go, you must either have an arrow on the = venturi or take them off entirely to visualize the internal contours to get the orientation right.

Barry Knotts
LIV-P, Conti TSIO-550

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