Return-Path: Received: from access.aic-fl.com ([204.49.76.2] verified) by logan.com (CommuniGate Pro SMTP 4.3c3) with ESMTP id 814856 for flyrotary@lancaironline.net; Mon, 21 Mar 2005 20:57:22 -0500 Received-SPF: none receiver=logan.com; client-ip=204.49.76.2; envelope-from=unicorn@gdsys.net Received: from b9k4u9 (unverified [204.49.76.110]) by access.aic-fl.com (Rockliffe SMTPRA 4.5.6) with SMTP id for ; Mon, 21 Mar 2005 19:51:15 -0600 Message-ID: <005601c52e92$ab75e3a0$6e4c31cc@b9k4u9> From: "Richard Sohn" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: P port intake design Date: Mon, 21 Mar 2005 19:53:07 -0800 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 Jerry, your injector problem may go away when you find out that the close-up butterfly may not be must as much as it is published. I went through that the whole way. Richard Sohn N-2071U ----- Original Message ----- From: "Jerry Hey" To: "Rotary motors in aircraft" Sent: Monday, March 21, 2005 4:36 PM Subject: [FlyRotary] Re: P port intake design > Ed, you are right on all counts. Space and Ease of fabrication and the > idea of cold side fuel all play a part. If I go to an injector close the > the butterfly such as Power Sport is doing, then I will have to go to a > single injector as there is not room down there for two. I like using > two injectors if I can. P ports (if the runners are not too large) can > generate some howling velocities, probably more than an intake with four > runners, that I hope will help with the throttle response. But we shall > see. This is an experiment and I will change what does not work. > Jerry > > > > On Monday, March 21, 2005, at 07:08 PM, Ed Anderson wrote: > >> No error Jerry, but wonder why are you putting the injectors so far away >> from the port? Space? Ease of fabrication? I tried putting my four >> injectors 21 inches away from the port myself and found that while I >> could >> not tell any difference in power( up or down), I found a distinctive >> hesitation bog if I opened the throttle quickly. Also it was hell to >> start >> on a cold morning. But, a PP port may be a different animal in those >> regards - actually cold starting should be OK as any liquid fuel will >> flow >> down hill. With my plugs up it has to flow up hill {:>). >> >> Good luck, we are all eagerly awaiting the results and I have two almost >> new >> rotor housings just waiting. >> >> Ed Anderson >> ----- Original Message ----- >> From: "Jerry Hey" >> To: "Rotary motors in aircraft" >> Sent: Monday, March 21, 2005 6:34 PM >> Subject: [FlyRotary] P port intake design >> >> >>> I've been messing with the p port intake design. I think it is about >>> ready to build. If anybody sees a glaring stupidity or even a subtle >>> one, please let me know. >>> >>> Still to be resolved is which injectors to use. Tracy, do you have >>> any suggestions? Using the 80 per cent rule, I need injectors for >>> around 260 hp. Thanks Jerry >>> >>> >> >> >> ----------------------------------------------------------------------- >> ----- >> ---- >> >> >> >> >> >> >> ----------------------------------------------------------------------- >> ----- >> ---- >> >> >>>>> Homepage: http://www.flyrotary.com/ >>>>> Archive: http://lancaironline.net/lists/flyrotary/List.html >>> >> >> >> >>>> Homepage: http://www.flyrotary.com/ >>>> Archive: http://lancaironline.net/lists/flyrotary/List.html >> > > >>> Homepage: http://www.flyrotary.com/ >>> Archive: http://lancaironline.net/lists/flyrotary/List.html