Return-Path: Received: from [199.185.220.224] (HELO priv-edtnes40.telusplanet.net) by logan.com (CommuniGate Pro SMTP 4.2b4) with ESMTP id 123247 for flyrotary@lancaironline.net; Fri, 04 Jun 2004 00:26:33 -0400 Received: from Endurance ([207.216.174.11]) by priv-edtnes40.telusplanet.net (InterMail vM.6.00.05.02 201-2115-109-103-20031105) with SMTP id <20040604042602.KFUS19834.priv-edtnes40.telusplanet.net@Endurance> for ; Thu, 3 Jun 2004 22:26:02 -0600 From: "Haywire" To: "Rotary motors in aircraft" Subject: RE: [FlyRotary] Re: Turbo boost limits in the EC2 Date: Thu, 3 Jun 2004 21:26:02 -0700 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 In-Reply-To: Importance: Normal > To be honest I would think cutting anything but fuel would make no sense. > > Cutting fuel till the MAP comes down is the only workable solution I can > see. > > Now what Tracy,or someone else could do is create an electronic waste gate > controller that could be driven by the EC2. > > Then add a knock sensor for detonation protection and you got everything. If killing the trailing plugs work (unconfirmed?), that would be my first choice. I'll reprogram my EC2 to take better advantage of the mode 6 to retard the timing at boost levels. I'm not crazy over the idea of a fuel cut-off, as I would prefer something that gives a reduced power rather than a hard cut. It could make mountain flying a little exciting to have the fuel cut just when you want to clear a ridge. I would guess that it shouldn't be much more than a momentary pause until MAP is lower and fuel starts flowing again. I would certainly accept this option, but as I said... not my first choice. Now this electronic wastegate controller would certainly be a useful idea. S. Todd Bartrim Turbo 13B RV-9Endurance C-FSTB http://www3.telus.net/haywire/RV-9/C-FSTB.htm "Whatever you vividly imagine, Ardently desire, Sincerely believe in, Enthusiastically act upon, Must inevitably come to pass".