X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 18 Feb 2013 18:37:13 -0500 Message-ID: X-Original-Return-Path: Received: from nm9-vm2.bullet.mail.ne1.yahoo.com ([98.138.90.157] verified) by logan.com (CommuniGate Pro SMTP 6.0.1) with ESMTPS id 6070100 for lml@lancaironline.net; Mon, 18 Feb 2013 12:17:40 -0500 Received-SPF: none receiver=logan.com; client-ip=98.138.90.157; envelope-from=dudewanarace@yahoo.com Received: from [98.138.90.57] by nm9.bullet.mail.ne1.yahoo.com with NNFMP; 18 Feb 2013 17:17:05 -0000 Received: from [98.138.89.198] by tm10.bullet.mail.ne1.yahoo.com with NNFMP; 18 Feb 2013 17:17:04 -0000 Received: from [127.0.0.1] by omp1056.mail.ne1.yahoo.com with NNFMP; 18 Feb 2013 17:17:04 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 961055.35989.bm@omp1056.mail.ne1.yahoo.com Received: (qmail 57193 invoked by uid 60001); 18 Feb 2013 17:17:01 -0000 DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=X-YMail-OSG:Received:X-Rocket-MIMEInfo:X-Mailer:Message-ID:Date:From:Reply-To:Subject:To:MIME-Version:Content-Type; b=bUEPBgGWxvhbZnp4nYZP9uo+fLFZq8Ur4vF03uatIsXu5fdzfeoUmEucWU5B4W5/gRAbQ75/CF/OVvnoRjCTmu1Udo2w1DFwFCq1HBbvr1ZQMxl+lvMpW3YsSWbFQajszt5ddnDQFGcqnmM1mZlBz29Em/eqZkX9ty2nSFp/aKQ=; X-YMail-OSG: XzCSyv0VM1nG1FPnelBXD6bo5MFgNsPf9TA1fVIRIMGDkZi 8kPhfD3elRu6hwAQU4ttPIp0xb6KPioDodjf3c.H_WIgsiNn_uQoo10Qu8kU zdTXZYmTZKa9Jt3ZVVnL0vUAYDNJ7xH6n9XXvaFAH11CSg06MzgMVptoEMIt LYVg5l4h4aNVeh0iBJsLjp3qfWvL03.dNRJgDFLLgH3DEUyXEzEE_1K4GVfZ c_sSi7Uo0B7nuuTj7MkTGiojh7guY5aQuz2q8fhnADxBK3e5..6qpZVVC9JQ eyFKa_eOoHsGNrZkNV8a8fBUoZ.jwGvNT7HSN6X..GOfwyxx_lC.03GTHUbu U9GyPinZZsIxCvgaqVtZgsUfk2_pLAKIMgM.iKe_p7_Rhc_3rrn.AgFfrSIA qlYi0EvCjT3UIN0r5wUjgjtcWVMSNDm_Tg9Vgdp8nkf.WHF90QAmtlCNlOib Xh4Y1IgqnGaPi978lQZ4Xzn6SqLIFDH0NppaoGJTBMvoSTYvzqu92ur6PWl7 9cmhVncxPbGvmhROKroaRkTOgZ1mHeXHm19q20oi1MsgUfqkhgoLkh5.CncM gLp9_ds6An6C6BjK0r4lTJjqpgOyHvRubdWX5Cz.nOmawWNEsi8un4n6hvuz ZnSKHUM.bIdGIHsv9cVS.ZB8TrhKGxrcKsHpFGINXnpIBDFcmDfT4JCrGBde 3xvlTA5ULOahKrRq9M.BXXCC7hMFkOpc- Received: from [24.2.15.88] by web120905.mail.ne1.yahoo.com via HTTP; Mon, 18 Feb 2013 09:16:58 PST X-Rocket-MIMEInfo: 001.001,SmltLApJIGRvbid0IGtub3cgdGhlIGRpZmZlcmVuY2UgYmV0d2VlbiBhbGwgdGhlIHZhcmlhbnRzIG9mIHRoZSBJTy0zNjAsIHBhcmFsbGVsIHZhbHZlLsKgIEJ1dCwgeW91IGNhbiByZWFkIGFib3V0IGl0IGhlcmUgaWYgeW91IGhhdmVuJ3QgYWxyZWFkeS4KaHR0cDovL2VuLndpa2lwZWRpYS5vcmcvd2lraS9MaXN0X29mX0x5Y29taW5nX08tMzYwX3ZhcmlhbnRzCsKgCkZvciBzdGFydGVycyBJIGRvIGtub3cgYSBmZXcgdGhpbmdzLgrCoApHZXQgYSBmb3J3YXJkIGZhY2luZyBzdW1wIGZvciBzdXJlLsKgwqABMAEBAQE- X-Mailer: YahooMailWebService/0.8.134.513 X-Original-Message-ID: <1361207818.36598.YahooMailNeo@web120905.mail.ne1.yahoo.com> X-Original-Date: Mon, 18 Feb 2013 09:16:58 -0800 (PST) From: Tom McNerney Reply-To: Tom McNerney Subject: Re: Which 360? X-Original-To: Lancair Mailing List MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="1517483800-1071952028-1361207818=:36598" --1517483800-1071952028-1361207818=:36598 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Jim,=0AI don't know the difference between all the variants of the IO-360, = parallel valve.=A0 But, you can read about it here if you haven't already.= =0Ahttp://en.wikipedia.org/wiki/List_of_Lycoming_O-360_variants=0A=A0=0AFor= starters I do know a few things.=0A=A0=0AGet a forward facing sump for sur= e.=A0=A0You can bolt on a Superior or other brand cold air sump on just abo= ut any of the 360's.=A0 This will allow you to make a much tighter cowling.= =A0=A0A rear facing sump is out of the question as your nose gear is direct= ly behind the sump.=A0(might fit with the long engine mount?=A0 I doubt it)= =A0But, I wouldn't let the "stock" configuration make me pass up a good dea= l on an engine.=0A=A0=0AIn my opinion, I would get a forward mounted prop g= overnor.=A0 The back of the engine is busy enough I think, but I have the s= hort engine mount..=0A=A0=0ACompression ratio will depend on what you want = to accomplish.=A0 If you want to run MoGas for example, need to keep it rat= her low.=A0 8.7:1 and lower I think?=0A=A0=0AIt seems many of the other var= iants relate to what type of mag setup.=A0 I have dual impulse coupled Slic= k mags.=A0 But, this is 2013 now, and if I was starting over I would have s= ome sort of electronic ignition on one or both sides.=A0 So again, the vari= ant doesn't really matter as you would probably not use mags anyway.=0A=A0= =0ASo in summary, I would buy whatever is less expensive to get you the com= pression ratio you want, and the forward prop governor. Then, scrap the res= t of it and build it with modern aftermarket accessories. (Ignition, Cold a= ir sump, Fuel servo, etc)=A0 So the actual "stock" variant isn't that impor= tant.=A0 Financially this may not make sense if your buying a new complete = engine kit, rather than just the core parts.=A0 Maybe get some quotes from = some=A0of the build shops and only buy what you need, rather than paying fo= r a sump and mags you don't want.=A0 Barrett comes to mind :)=0Ahttp://www.= bpaengines.com/=0A=A0=0ATom McNerney=0Ahttp://www.n54sg.com/ --1517483800-1071952028-1361207818=:36598 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
Jim,
I don't know= the difference between all the variants of the IO-360, parallel valve.&nbs= p; But, you can read about it here if you haven't already.
 
For starters I do know a few things.
 
Ge= t a forward facing sump for sure.  You can bolt on a Superior or = other brand cold air sump on just about any of the 360's.  This will a= llow you to make a much tighter cowling.  A rear facing sump is o= ut of the question as your nose gear is directly behind the sump. (mig= ht fit with the long engine mount?  I doubt it) But, I wouldn't l= et the "stock" configuration make me pass up a good deal on an engine.
 
In my opinion, I would get a forward mo= unted prop governor.  The back of the engine is busy enough I think, b= ut I have the short engine mount..
 
Compression r= atio will depend on what you want to accomplish.  If you want to run <= span id=3D"misspell-0" class=3D"mark">MoGas for example, need to kee= p it rather low.  8.7:1 and lower I think?
 
= It seems many of the other variants relate to what type of mag setup. = I have dual impulse coupled Slick mags.  But, this is 2013 now, and i= f I was starting over I would have some sort of electronic ignition on one = or both sides.  So again, the variant doesn't really matter as you wou= ld probably not use mags anyway.
 
So in summary, = I would buy whatever is less expensive to get you the compression ratio you= want, and the forward prop governor. Then, scrap the rest of it and build it with modern aftermarket accessories. (Ignition, Cold air sump, Fuel servo, etc)  So the act= ual "stock" variant isn't that important.  Financially this may not ma= ke sense if your buying a new complete engine kit, rather than just the cor= e parts.  Maybe get some quotes from some of the build shops and = only buy what you need, rather than paying for a sump and mags you don't wa= nt.  Barrett comes to mind :)
 
Tom McNe= rney
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