X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Fri, 23 Sep 2005 16:55:25 -0400 Message-ID: X-Original-Return-Path: Received: from systems3.net ([68.98.211.24] verified) by logan.com (CommuniGate Pro SMTP 5.0c2) with ESMTPS id 731065 for lml@lancaironline.net; Fri, 23 Sep 2005 13:49:50 -0400 Received-SPF: none receiver=logan.com; client-ip=68.98.211.24; envelope-from=cberland@systems3.net Received: from systems0d3b724 ([192.168.1.81]) by systems3.net (8.13.4/8.13.4/Debian-3) with SMTP id j8NHmVFC029755 for ; Fri, 23 Sep 2005 10:48:31 -0700 X-Original-Message-ID: <011501c5c066$94ff8ca0$5101a8c0@systems0d3b724> From: "Craig Berland" X-Original-To: "Lancair Mail List" Subject: [LML] Re: IV-P Drilled Brake Rotor X-Original-Date: Fri, 23 Sep 2005 10:45:21 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_010E_01C5C02B.E5906760" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1506 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1506 X-Virus-Scanned: ClamAV 0.86.2/1098/Thu Sep 22 13:57:50 2005 on systems3.net X-Virus-Status: Clean This is a multi-part message in MIME format. ------=_NextPart_000_010E_01C5C02B.E5906760 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Richard Freilich said: Not that I am an expert in these matters, but = would have drilled the holes angled in the direction of airflow and = rotation. This provides more surface area to be cooled and increases = airflow. This what my Suburban slotted and drilled front discs had. I think you are describing a "vented" rotor. Most automotive rotors are = cast "vented". To do that in a "rework" scenario would be a more = significant effort. I agree, it would additionally help cooling, but = more difficult to do. Craig Berland ------=_NextPart_000_010E_01C5C02B.E5906760 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Richard Freilich said: Not that I am an expert in these = matters, but=20 would have drilled the holes angled in the direction of airflow and=20 rotation. This provides more surface area to be cooled and = increases=20 airflow. This what my Suburban slotted and drilled front discs=20 had.

I think you are describing a "vented" rotor. Most automotive = rotors=20 are cast "vented". To do that in a "rework" scenario would be a = more=20 significant effort. I agree, it would additionally help = cooling, but=20 more difficult to do. Craig Berland

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