X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imr-ma05.mx.aol.com ([64.12.100.31] verified) by logan.com (CommuniGate Pro SMTP 5.4c2) with ESMTP id 4923394 for flyrotary@lancaironline.net; Sat, 26 Mar 2011 11:42:28 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.100.31; envelope-from=Lehanover@aol.com Received: from imo-da03.mx.aol.com (imo-da03.mx.aol.com [205.188.169.201]) by imr-ma05.mx.aol.com (8.14.1/8.14.1) with ESMTP id p2QFfULL015628 for ; Sat, 26 Mar 2011 11:41:30 -0400 Received: from Lehanover@aol.com by imo-da03.mx.aol.com (mail_out_v42.9.) id q.e8b.11aa81b4 (55738) for ; Sat, 26 Mar 2011 11:41:28 -0400 (EDT) Received: from magic-m25.mail.aol.com (magic-m25.mail.aol.com [172.20.22.198]) by cia-md04.mx.aol.com (v129.9) with ESMTP id MAILCIAMD045-d9ba4d8e09281a8; Sat, 26 Mar 2011 11:41:28 -0400 From: Lehanover@aol.com Message-ID: Date: Sat, 26 Mar 2011 11:41:28 EDT Subject: Re: [FlyRotary] Hose Sizes for Oil System To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_b3d1.235fd346.3abf6328_boundary" X-Mailer: 9.0 Security Edition for Windows sub 5382 X-AOL-IP: 72.187.199.116 X-Spam-Flag:NO X-AOL-SENDER: Lehanover@aol.com --part1_b3d1.235fd346.3abf6328_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 3/26/2011 10:40:39 A.M. Eastern Daylight Time, keltro@att.net writes: Lynn, I am plumbing oil system and need your opinion on hose sizes...............I am trying to reduce restriction as much as possible from engine to external filter ("WIX" HP6 equivalent),oil cooler and return to engine..........I will have external oil pressure adjustment ("AVIAID" filter mount with regulator for return to sump)...........I know most of the flying group are using AN-10 (a few AN-8) but I am leaning to AN-12..............Overkill perhaps (HP6 flows up to 22 gal/min) but weighs less than two HP1 + filter mount............I want to reduce pump heating of oil as much as possible and reduce hose restriction losses by returning regulator bypass oil directly to sump with out passing through the oil cooler and hose to it...........What say you............. Best Regards, (Wish I could attend Sun-N-Fun) Kelly Troyer "DYKE DELTA JD2" (Eventually) Dash 10 is plenty big and a bit lighter, and a bit less expensive. No pipe threads into cast iron other than a dash 4 for oil pressure. Use boss fittings that seal with an "O" ring. So no cracked castings. Back up all fittings when connecting hoses. That means hold the fitting with a wench and a second wrench on the "B" nut. Then squeeze the wrenches together with one hand to tighten or loosen a connection. Support each hose close to its connection, so as to keep pushing and pulling to the long run of hose and not stress the fittings. No braided hoses can touch anything but a padded clamp. It can saw through another hose or anything it touches Both braided hose and Kevlar hose are conductive and if you fail a ground strap will carry your starter current just as well, with very bad outcomes. No 90 degree fittings. If you need a bend close to a fitting use a sweep 90 Hose end and a straight fitting. Observe minimum hose bend radius. You want to be sure the filter has a bypass function in case of an element collapse or excessive debris collection. At 6,000 RPM probably 14 GPM is adequate. I would control the pressure after everything including the cooler(s) since it is the pressure that makes the heat, and I would not pass up a chance to run oil through a cooler. If possible route return oil into the pan at the lowest point available. This will mix in a lot less air into the sump oil. I install stock regulators with the outlets sideways rather than down for that reason. Keep the return pipe at dash 10 to keep velocity low into the pan. Stay well away from the pickup. Racing beat says everything up to the 93-95 twin turbo ran 71.1 PSI, then the 93 up runs 110 PSI. We raced on 85 PSI and the store bought engines (Drummond) run 100 PSI (non turbo) Lynn E. Hanover --part1_b3d1.235fd346.3abf6328_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
In a message dated 3/26/2011 10:40:39 A.M. Eastern Daylight Time,=20 keltro@att.net writes:
Lynn,
   I am plumbing oil system and need your opinion on= hose=20 sizes...............I am trying to reduce
restriction as much as possible from engine to external f= ilter=20 ("WIX" HP6 equivalent),oil cooler
and return to engine..........I will have external oil pressur= e=20 adjustment ("AVIAID" filter mount with
regulator for return to sump)...........I know most of the flying= group=20 are using AN-10 (a few AN-8)
but I am leaning to AN-12..............Overkill perhaps (HP6 flows= up to=20 22 gal/min) but weighs less
than two HP1 + filter mount............I want to reduce pump heatin= g of=20 oil as much as possible and 
reduce hose restriction losses by returning regulator bypass= oil=20 directly to sump with out passing
through the oil cooler and hose to it...........What say=20 you.............
 
Best Regards,
(Wish I could attend Sun-N-Fun) 
 

Kelly Troyer
"DYKE DELTA JD2" (Eventually)

Dash 10 is plenty big and a bit lighter, and a bit less expensive. No= pipe=20 threads into cast iron other than a dash 4 for oil pressure. Use boss fitt= ings=20 that seal with an "O" ring. So no cracked castings. Back up all fittings= when=20 connecting hoses. That means hold the fitting with a wench and a second wr= ench=20 on the "B" nut. Then squeeze the wrenches together with one hand to tighte= n or=20 loosen a connection. Support each hose close to its connection, so as= to=20 keep pushing and pulling to the long run of hose and not stress the fittin= gs. No=20 braided hoses can touch anything but a padded clamp. It can saw through an= other=20 hose or anything it touches Both braided hose and Kevlar hose are conducti= ve and=20 if you fail a ground strap will carry your starter current just as well,= with=20 very bad outcomes. 
 
No 90 degree fittings. If you need a bend close to a fitting use a sw= eep 90=20 Hose end and a straight fitting. Observe minimum hose bend radius.
 
You want to be sure the filter has a bypass function in case of = an=20 element collapse or excessive debris collection.
 
At 6,000 RPM probably 14 GPM is adequate. I would control the pressur= e=20 after everything including the cooler(s) since it is the pressure that mak= es the=20 heat, and I would not pass up a chance to run oil through a cooler. If pos= sible=20 route return oil into the pan at the lowest point available. This will mix= in a=20 lot less air into the sump oil. I install stock regulators with the outlet= s=20 sideways rather than down for that reason. Keep the return pipe at dash 10= to=20 keep velocity low into the pan. Stay well away from the pickup.
 
Racing beat says everything up to the 93-95 twin turbo ran 71.1 PSI,= then=20 the 93 up runs 110 PSI.
 
We raced on 85 PSI and the store bought engines (Drummond) run 100 PS= I (non=20 turbo)
 
Lynn E. Hanover
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