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( [69.144.83.91]) by mx.google.com with ESMTP id 1sm378641qbh.2006.11.09.02.10.17; Thu, 09 Nov 2006 02:10:17 -0800 (PST) Mime-Version: 1.0 (Apple Message framework v624) In-Reply-To: References: Content-Type: multipart/alternative; boundary=Apple-Mail-1-76220142 Message-Id: <9bbfce2e4fa45a65dd3bdc515ec659b8@gmail.com> From: Hans Conser Subject: Re: [FlyRotary] Re: P Porting template? Date: Thu, 9 Nov 2006 03:10:13 -0700 To: "Rotary motors in aircraft" X-Mailer: Apple Mail (2.624) --Apple-Mail-1-76220142 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=ISO-8859-1; format=flowed Well, telling you upfront that I am not flying a 13B; I disagree with=20 Ed, I don't think you will see that sort of power with a side port 13B=20= unless you are over 7500 RPM. At leaast this is what I think based on=20= some dyno runs with various side port engines I have built. P-Port is=20= the way to go. Hans On Nov 8, 2006, at 9:03 PM, Ed Anderson wrote: > Hi Doug, > =A0 > If you want to develop between 160 and 170 HP from a 13B, I for one=20 > would not consider a P port.=A0 The reason, is that the stock 13B will=20= > easily give you that kind of power with less effort and cost.=A0 If = you=20 > wanted HP on the order of 200 + then a P port might be one approach to=20= > consider.=A0 > =A0 > Now if you simply want to experiment with a P port, then got to it.=A0=20= > But, it is simply not needed for the power levels you are looking for. > =A0 > The only person I am aware of who may have the information you want is=20= > Jerry Hey - he use to be on the list, but I have not seeing anything=20= > from him recently.=A0=A0=A0 This is the last e mail address I have for = Jerry=20 > Hey > E-mail Address(es): > =A0 jerryhey@earthlink.net > =A0 > you might send him a message. > =A0 > =A0 > Best Regards > =A0 > Ed >> ----- Original Message ----- >> From: DLOMHEIM@aol.com >> To: Rotary motors in aircraft >> Sent: Wednesday, November 08, 2006 10:45 PM >> Subject: [FlyRotary] P Porting template? >> >> >> I have a friend in Denver who is willing to set up his=A0milling=20 >> machine to mill out some P-Ports on a couple of my=A0old rotor = housings=20 >> over Thanksgiving break.=A0 My question is if any of you know where I=20= >> can=A0get a copy of a template for use with 1.5" diameter intake=20 >> pipes.=A0 I would think there would be something in the=A0public = domain=20 >> by now (but I could be wrong).=A0 The potential benefits of a P-Port=20= >> make it pretty attractive to at least experiment with at some point=20= >> and I will be happy to develop between 160 and 170 hp=A0in my 9A so I=20= >> think that should be doable... >> =A0 >> Doug >> RV-9A, 13B installation=A0= --Apple-Mail-1-76220142 Content-Transfer-Encoding: quoted-printable Content-Type: text/enriched; charset=ISO-8859-1 Well, telling you upfront that I am not flying a 13B; I disagree with Ed, I don't think you will see that sort of power with a side port 13B unless you are over 7500 RPM. At leaast this is what I think based on some dyno runs with various side port engines I have built. P-Port is the way to go. Hans =20 On Nov 8, 2006, at 9:03 PM, Ed Anderson wrote: ArialHi Doug, = Arial=A0 ArialIf you want to develop between 160 and 170 HP from a 13B, I for one would not consider a P port.=A0 The reason, is that the stock 13B will easily give you that kind of power with less effort and cost.=A0 If you wanted HP on the order of 200 + then a P port might be one approach to consider.=A0 = Arial=A0 ArialNow if you simply want to experiment with a P port, then got to it.=A0 But, it is simply not needed for the power levels you are looking for. = Arial=A0 ArialThe only person I am aware of who may have the information you want is Jerry Hey - he use to be on the list, but I have not seeing anything from him recently.=A0=A0=A0 This is the = last e mail address I have for Jerry Hey ArialE-mail Address(es): Arial=A0 = 0000,0000,EEEEjerryhey@earthlink.net = Arial=A0 Arialyou might send him a = message. = Arial=A0 = Arial=A0 ArialBest Regards = Arial=A0 ArialEd Arial----- Original Message ----- = ArialFrom:Arial = 0000,0000,EEEEDLOMHEIM@= aol.com = = ArialTo:Arial 0000,0000,EEEERotary motors in aircraft = = ArialSent:Arial Wednesday, November 08, 2006 10:45 PM = ArialSubject:Arial [FlyRotary] P Porting template? ArialI have a friend in Denver who is willing to set up his=A0milling machine to mill out some P-Ports on a couple of my=A0old rotor housings over Thanksgiving break.=A0 My = question is if any of you know where I can=A0get a copy of a template for use with 1.5" diameter intake pipes.=A0 I would think there would be something in the=A0public domain by now (but I could be wrong).=A0 The potential benefits of a P-Port make it pretty attractive to at least experiment with at some point and I will be happy to develop between 160 and 170 hp=A0in my 9A so I think that should be = doable... Arial=A0 ArialDoug ArialRV-9A, 13B = installation=A0= --Apple-Mail-1-76220142--