Return-Path: Sender: (Marvin Kaye) To: lml Date: Wed, 11 Sep 2002 19:31:42 -0400 Message-ID: X-Original-Return-Path: Received: from rook.innercite.com ([158.222.5.8] verified) by logan.com (CommuniGate Pro SMTP 4.0b7) with ESMTP id 1731061 for lml@lancaironline.net; Wed, 11 Sep 2002 17:19:55 -0400 Received: from colwell (host-226-134.dialup.innercite.com [158.222.226.134]) by rook.innercite.com (8.11.6/8.11.6) with SMTP id g8BLJt214787; Wed, 11 Sep 2002 14:19:55 -0700 X-Original-Message-ID: <009b01c259d9$202276a0$9fe3de9e@colwell> From: "Steve & Claudette Colwell" X-Original-To: "Lancair Mailing List" X-Original-Cc: References: Subject: Re: [LML] ram air X-Original-Date: Wed, 11 Sep 2002 13:21:27 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 >Bypassing the filter at altitude may be a > reasonable thing to do, Or maybe not. "Van" claims they ran a RV6 with and without a K&N Filter to determine the difference. They use a straight in plenum (aprox. 3" opening gradually expanding to about 7" wide) which required the induction air to turn 90 degrees about 14" behind the inlet to enter the updraft carburetor. The result was a significant increase in MP at all cruise and climb airspeeds, confirming the K&N claims. A friend put a new Bracket brand, oil soaked foam filter on, flew from LA to Arkansas, no visible dust and the filter was clogged enough for the engine to run better with carb heat pulled by the time he got to Arkansas, just another reason to have a filter all the time. Steve Colwell Legacy 2K Placerville,CA (530) 621-3408