Return-Path: Received: from main.gv.net ([207.159.62.12]) by truman.olsusa.com (Post.Office MTA v3.5.1 release 219 ID# 0-52269U2500L250S0V35) with ESMTP id com for ; Mon, 5 Apr 1999 11:08:51 -0400 Received: from [207.159.62.107] (ppp58.gv.net [207.159.62.107]) by main.gv.net (8.9.0/8.9.0) with ESMTP id IAA18490 for ; Mon, 5 Apr 1999 08:10:37 -0700 (PDT) Message-Id: In-Reply-To: <19990405044839.AAA4142@truman.olsusa.com> Date: Mon, 5 Apr 1999 07:29:14 -0800 To: From: "Howard \"Rusty\" Hamer" Subject: LC20 - O-290-D2 Stumbles X-Mailing-List: lancair.list@olsusa.com Mime-Version: 1.0 <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> When I installed a 290 in my 235 I had some induction problems where it would stumble at a lower RPM on take off. If I closed the RAM butterfly it would run fine and after I was over 100kts then it would run fine except one cylinder had a much lower EGT. By adjusting the RAM butterfly I was able to even out the temperatures. I modified the lower cowl and increased the heigth of the RAM air box and this solved the take-off stumble but I still need to play with the butterfly setting to get the best EGTs. Rusty >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> LML homepage: http://www.olsusa.com/Users/Mkaye/maillist.html