Return-Path: Sender: (Marvin Kaye) To: flyrotary Date: Thu, 22 May 2003 17:07:47 -0400 Message-ID: X-Original-Return-Path: Received: from BAY0-SMTP12.adinternal.hotmail.com ([65.54.241.119] verified) by logan.com (CommuniGate Pro SMTP 4.1b6) with ESMTP id 2359122 for flyrotary@lancaironline.net; Thu, 22 May 2003 10:57:07 -0400 X-Originating-IP: [68.7.218.110] X-Originating-Email: [alventures@msn.com] Received: from BigAl ([68.7.218.110]) by BAY0-SMTP12.adinternal.hotmail.com with Microsoft SMTPSVC(5.0.2195.5600); Thu, 22 May 2003 07:57:06 -0700 Reply-To: From: "Al Gietzen" X-Original-To: "Rotary motors in aircraft" Subject: Tuned Induction X-Original-Date: Thu, 22 May 2003 07:57:10 -0700 Organization: ALVentures X-Original-Message-ID: <000001c32072$6f3c4fd0$6400a8c0@BigAl> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C32037.C2DD77D0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.4024 Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Original-Return-Path: alventures@email.msn.com X-OriginalArrivalTime: 22 May 2003 14:57:06.0959 (UTC) FILETIME=[69C821F0:01C32072] This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C32037.C2DD77D0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit True, without dyno testing who knows what it does. So talk to someone who does dyno development work on rotaries - Tracy's not the only source of info around. Take a look at Paul Yaw's website - used to be lots of info there on intake and exhaust tuning. And he does all his stuff using dyno and flowbench testing. No guesstimating. http://personal.riverusers.com/~yawpower/ Mike Wills Mike; I had a couple of discussions with Paul about the intake design before I had it built. His opinion was that it should work just fine, and we talked about flow velocity (one of his favorite subjects). Overall he thought that the easy breathing would compensate for lack of tuning, but I don't recall that we discussed specific RPM. There's no doubt about getting power at higher RPM. His testing has all involved ported or turboed engines, nothing directly comparable. Al ------=_NextPart_000_0001_01C32037.C2DD77D0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

True, without dyno testing who knows what it does. So talk to = someone who does dyno development work on rotaries - Tracy's not = the only source of info around. Take a look at Paul Yaw's website - used to be = lots of info there on intake and exhaust tuning. And he does all his stuff using = dyno and flowbench testing. No guesstimating.

http://personal.riverusers.com/~yawpower/

Mike Wills

 

Mike;

 

I had a couple of discussions with Paul about the intake design = before I had it built.  His opinion was that it should work just fine, and = we talked about flow velocity (one of his favorite subjects).  Overall = he thought that the easy breathing would compensate for lack of tuning, but = I don’t recall that we discussed specific RPM.  There’s no doubt = about getting power at higher RPM.

 

His testing has all involved ported or turboed engines, nothing directly comparable.

 

Al

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