X-CGP-ClamAV-Result: CLEAN X-VirusScanner: Niversoft's CGPClamav Helper v1.23.0 (ClamAV engine v0.103.0) X-Junk-Score: 0 [] X-KAS-Score: 0 [] From: "RICHARD E SOHN res12@fairpoint.net" Received: from mail.nrtc.syn-alias.com ([129.213.214.220] verified) by logan.com (CommuniGate Pro SMTP 6.3.13) with ESMTPS id 1843081 for flyrotary@lancaironline.net; Tue, 28 Feb 2023 10:04:09 -0500 Received-SPF: error receiver=logan.com; client-ip=129.213.214.220; envelope-from=res12@fairpoint.net Return-Path: X-Authed-Username: cmVzMTJAZmFpcnBvaW50Lm5ldA== Received: from [10.219.152.19] ([10.219.152.19:22902] helo=md18.nrtc.email-ash1.sync.lan) by mail.informnet.com (envelope-from ) (ecelerity 4.4.0.19839 r(msys-ecelerity:tags/4.4.0.0^0)) with ESMTP id 59/BC-15182-6D71EF36; Tue, 28 Feb 2023 10:03:50 -0500 Date: Tue, 28 Feb 2023 10:03:50 -0500 (EST) To: Rotary motors in aircraft Message-ID: <2018588095.2075975.1677596630679.JavaMail.zimbra@fairpoint.net> In-Reply-To: References: Subject: Re: [FlyRotary] Re: Premix vs OMP MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="=_950aeefe-473d-4929-b576-92333f845552" X-Originating-IP: [67.158.146.68] X-Mailer: Zimbra 8.8.15_GA_4173 (ZimbraWebClient - GC110 (Win)/8.8.15_GA_4173) Thread-Topic: Premix vs OMP Thread-Index: pwpHLCESyGldhUl4+yN5TyokMpNqHA== X-Vade-Verdict: clean X-Vade-Analysis-1: gggruggvucftvghtrhhoucdtuddrgedvhedrudelfedgtdelucetufdoteggodetrfdotffvucfrrhho X-Vade-Analysis-2: fhhilhgvmecuufgjpfetvefqtfdppfftvfevpdfgpfggqdfptffvvedpqfgfvfenuceurghilhhouhht X-Vade-Analysis-3: mecufedtudenucenucfjughrpeffhffvkfgjfhfugggtihfothesrgdttgerredtjeenucfhrhhomhep X-Vade-Analysis-4: tffkvefjteftffcugfcuuffqjffpuceorhgvshduvdesfhgrihhrphhoihhnthdrnhgvtheqnecuggft X-Vade-Analysis-5: rfgrthhtvghrnhepvddvffdvffejueejheehffeiffdufeehfeehieejffduhfeukefhvdeltdffhfek X-Vade-Analysis-6: necukfhppedutddrvdduledrudehvddrudelpdeijedrudehkedrudegiedrieeknecuvehluhhsthgv X-Vade-Analysis-7: rhfuihiivgeptdenucfrrghrrghmpehinhgvthepuddtrddvudelrdduhedvrdduledphhgvlhhopehm X-Vade-Analysis-8: ugdukedrnhhrthgtrdgvmhgrihhlqdgrshhhuddrshihnhgtrdhlrghnpdhmrghilhhfrhhomheprhgv X-Vade-Analysis-9: shduvdesfhgrihhrphhoihhnthdrnhgvthdprhgtphhtthhopehflhihrhhothgrrhihsehlrghntggr X-Vade-Analysis-10: ihhrohhnlhhinhgvrdhnvghtpdhmthgrhhhoshhtpehsmhhtphdtfedrnhhrthgtrdgvmhgrihhlqdgr X-Vade-Analysis-11: shhhuddrshihnhgtrdhlrghnpdhnsggprhgtphhtthhopedupdhishgpnhgrpehfrghlshgvpdgruhht X-Vade-Analysis-12: hhgpuhhsvghrpehrvghsuddvsehfrghirhhpohhinhhtrdhnvght X-Vade-Client: NRTC --=_950aeefe-473d-4929-b576-92333f845552 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable The OMP adapter I used to make is still available from Rotary Aviation comp= any. There is also an outfit selling an oil tank and the plumbing for using= the adapter. I do not think for aircraft use the electronic controlled OMP= is much of an advantage. In the car this controle optimizes the oil going = into the combustion chamber over the range of different power demands.=20 Richard=20 From: "Rotary motors in aircraft" =20 To: "Rotary motors in aircraft" =20 Sent: Sunday, February 26, 2023 12:13:14 PM=20 Subject: [FlyRotary] Re: Premix vs OMP=20 Sorry I should have added for my engine core set for OMP I have Richard=E2= =80=99s RENESIS adapter!=20 Richard - completely tracking 4 stroke oil is bad. My question was more pre= mix or use your adapter.=20 On Sunday, February 26, 2023, William Jepson [ mailto:wrjjrs@gmail.com | wr= jjrs@gmail.com ] < [ mailto:flyrotary@lancaironline.net | flyrotary@lancair= online.net ] > wrote:=20 Richard and Mark,=20 One other solution is to run a 2 stroke oil tank and =E2=80=9Cshort circuit= ing=E2=80=9D the plumbing. Richard didn=E2=80=99t you have a separate tank = system for 2 stroke oil? All of the later model 2 stroke motorcycles came w= ith this system. The last Kawasaki 2 stroke H2, (the 750cc triple) had a in= volved system that injected oil into the carburator float bowls and also fe= d the main bearings. Still in the combustion path on a 2 stroke. The rotary= would be much simpler with only the feed to the rotor housings needed.=20 Bill=20 On Sun, Feb 26, 2023 at 9:24 AM RICHARD E SOHN [ mailto:res12@fairpoint.net= | res12@fairpoint.net ] < [ mailto:flyrotary@lancaironline.net | flyrotary= @lancaironline.net ] > wrote:=20 BQ_BEGIN The difference between premix and OMP is the two stroke oil you would use i= n premix. The OMP is using motor oil with all the disadvantages it has when= it gets into the combustion chamber. Also, you can not use synsetic oil in= the engine when using the OMP.=20 There is a lot more info available in rotary engine related discussions on = the internet.=20 fwiw.=20 Richard.=20 From: "Mark McClure [ mailto:mark.mcclure.m3@gmail.com | mark.mcclure.m3@gm= ail.com ] " < [ mailto:flyrotary@lancaironline.net | flyrotary@lancaironlin= e.net ] >=20 To: "Rotary motors in aircraft" < [ mailto:flyrotary@lancaironline.net | fl= yrotary@lancaironline.net ] >=20 Sent: Sunday, February 26, 2023 8:01:41 AM=20 Subject: [FlyRotary] Premix vs OMP=20 I now have 2 engine cores. One is set up for premix and one is set up for O= MP. (I of course just purchased a set of SS braided OMP lines before acquir= ing this 2nd engine)=20 My search of the listserv (2006-2010 results) shows that overall premix yie= lds a better distribution (at least for the RX-7 engines with 2 OMP lines).= =20 Is the general consensus still that premix is a better distribution? Still = recommending .7oz to 1 US Gal?=20 Thanks,=20 Mark=20 BQ_END --=_950aeefe-473d-4929-b576-92333f845552 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
The OMP adapter I used to make is still ava= ilable from Rotary Aviation company. There is also an outfit selling an oil= tank and the plumbing for using the adapter. I do not think for aircraft u= se the electronic controlled OMP is much of an advantage. In the car this c= ontrole optimizes the oil going into the combustion chamber over the range = of different power demands. 
Richard


From: "Rotary motors in aircraft= " <flyrotary@lancaironline.net>
To: "Rotary motors in aircr= aft" <flyrotary@lancaironline.net>
Sent: Sunday, February 2= 6, 2023 12:13:14 PM
Subject: [FlyRotary] Re: Premix vs OMP

Sorry I should have = added for my engine core set for OMP I have Richard=E2=80=99s RENESIS adapt= er! 
Richard - completely tracking 4 stroke oil is bad. My que= stion was more premix or use your adapter. 



On S= unday, February 26, 2023, William Jepson wrjjrs@gmail.com <flyrotary@lancaironline.net> wrote= :
Richard and Mark,&nb= sp;
One other solution is to run a 2 stroke oil tank= and =E2=80=9Cshort circuiting=E2=80=9D the plumbing. Richard didn=E2=80=99= t you have a separate tank system for 2 stroke oil? All of the later model = 2 stroke motorcycles came with this system. The last Kawasaki 2 stroke H2, = (the 750cc triple) had a involved system that injected oil into the carbura= tor float bowls and also fed the main bearings. Still in the combustion pat= h on a 2 stroke. The rotary would be much simpler with only the feed to the= rotor housings needed.
Bill

On Sun, Feb 26, 202= 3 at 9:24 AM RICHARD E SOHN res12@fairpoint.net &l= t;flyrotary@lancaironline.net> wrote:
=
The difference between premix= and OMP is the two stroke oil you would use in premix. The OMP is using mo= tor oil with all the disadvantages it has when it gets into the combustion = chamber. Also, you can not use synsetic oil in the engine when using the OM= P. 
There is a lot more info available in rotary engine related discussions on= the internet.
fwiw. 
Richard.

From: "Mark McCl= ure mark.mcclure.m3@gmail.com" <flyrotary@lancaironl= ine.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironlin= e.net>
Subject: [FlyRotary] Premix vs OMP=
I now have 2 engine = cores. One is set up for premix and one is set up for OMP.  (I of cour= se just purchased a set of SS braided OMP lines before acquiring this 2nd e= ngine)

My search of the listserv (2006-2010 results) shows that overall pre= mix yields a better distribution (at least for the RX-7 engines with 2= OMP lines). 

Is the general consensus still that premix is a better = distribution? Still recommending .7oz to 1 US Gal?

Thanks,
Mark


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