X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.120] verified) by logan.com (CommuniGate Pro SMTP 5.2c1) with ESMTP id 2434768 for flyrotary@lancaironline.net; Fri, 26 Oct 2007 17:49:44 -0400 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.120; envelope-from=eanderson@carolina.rr.com Received: from edward2 ([24.74.103.61]) by cdptpa-omta01.mail.rr.com with SMTP id <20071026214859.PUYY6760.cdptpa-omta01.mail.rr.com@edward2> for ; Fri, 26 Oct 2007 21:48:59 +0000 Message-ID: <000d01c81819$c2291360$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: MAP port location Date: Fri, 26 Oct 2007 17:47:08 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000A_01C817F8.3ADE3AF0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3138 This is a multi-part message in MIME format. ------=_NextPart_000_000A_01C817F8.3ADE3AF0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sounds like they may have already provided a good location then. Where = the primary and secondary join would not be a bad place, just make = certain the ports you select actually connect with the manifold = passages. =20 Ed ----- Original Message -----=20 From: Bobby J. Hughes=20 To: Rotary motors in aircraft=20 Sent: Friday, October 26, 2007 6:26 PM Subject: [FlyRotary] Re: MAP port location Ed, The ports in the renesis lower manifold are at the primary and = secondary runner join. The stock upper renesis manifold also has other = ports as well. Not sure what they are for in the car. I need to get the = shop manual out and do a little research. Bobby -------------------------------------------------------------------------= ----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] = On Behalf Of Ed Anderson Sent: Friday, October 26, 2007 3:18 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: MAP port location It'll work just about at any location. But, you generally want a = location that will reflect the total engine condition rather than say = one runner. Besides there are some fairly substantial pulsation in the = runners. I prefer to have the sensor in the plenum immediately after = the throttle body, but out of the way of the air flow at this point the = pressure changes in your plenum probably reflect the over all (average) = of what is going on in your runners. The pressure wave travels at the = speed of sound whereas the air mass travels less than 400 ft/sec (much = less in most cases), so where ever you put the sensor - even down my the = ports, it won't matter timing wise.=20 However, a location where the pulsation are damped is where I would = put it. In the plenum after the throttle body and out of the direct air = flow path. On the other hand, I have used the ports on the stock lower = manifold (tying together the primary and secondary ports with a "T" so = as to better get an average). =20 Some folks have used a dense air filter/fuel filter? to damp out the = pulsation, so if you are going to run your manifold like off a tube near = a port, that is what I would try as well. Ed Ed ----- Original Message -----=20 From: Bobby J. Hughes=20 To: Rotary motors in aircraft=20 Sent: Friday, October 26, 2007 10:49 AM Subject: [FlyRotary] MAP port location What is the best location for MAP ports on the intake. Close to the = engine or further away? I have the modified Renesis lower manifold that = has two ports installed. Are these the best locations for the EC2 or = should I place new ones further back in the upper manifold? Thanks, Bobby J Hughes -------------------------------------------------------------------------= --- -- Homepage: http://www.flyrotary.com/ Archive and UnSub: = http://mail.lancaironline.net:81/lists/flyrotary/List.html ------=_NextPart_000_000A_01C817F8.3ADE3AF0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Sounds like they may have already provided a = good location=20 then.  Where the primary and secondary join would not be a bad = place, just=20 make certain the ports you select actually connect with the manifold=20 passages. 
 
Ed
----- Original Message -----
From:=20 Bobby J. = Hughes=20
Sent: Friday, October 26, 2007 = 6:26=20 PM
Subject: [FlyRotary] Re: MAP = port=20 location

Ed,
 
The ports in the renesis lower manifold are = at the=20 primary and secondary runner join. The stock upper renesis manifold = also has=20 other ports as well. Not sure what they are for in the car. I need to = get the=20 shop manual out and do a little research.
 
Bobby

From: Rotary motors in aircraft=20 [mailto:flyrotary@lancaironline.net] On Behalf Of Ed=20 Anderson
Sent: Friday, October 26, 2007 3:18 = PM
To: Rotary=20 motors in aircraft
Subject: [FlyRotary] Re: MAP port=20 location

It'll work just about at any location.  = But, you=20 generally want a location that will reflect the total engine condition = rather=20 than say one runner.  Besides there are some fairly substantial = pulsation=20 in the runners.  I prefer to have the sensor in the plenum = immediately=20 after the throttle body, but out of the way of the air flow at this = point the=20 pressure changes in your plenum probably reflect the over all = (average) of=20 what is going on in your runners.  The pressure wave travels at = the speed=20 of sound whereas the air mass travels less than 400 ft/sec (much less = in most=20 cases), so where ever you put the sensor - even down my the ports, it = won't=20 matter timing wise.
 
However, a location where the pulsation are = damped is=20 where I would put it.  In the plenum after the throttle body and = out of=20 the direct air flow path.  On the other hand, I have used the = ports on=20 the stock lower manifold (tying together the primary and secondary = ports with=20 a "T" so as to better get an average). 
 
Some folks have used a dense air filter/fuel = filter? to=20 damp out the pulsation, so if you are going to run your manifold like = off a=20 tube near a port, that is what I would try as well.
 
Ed
 
 Ed
 
 
 ----- Original Message ----- =
From:=20 Bobby = J. Hughes=20
To: Rotary motors in = aircraft=20
Sent: Friday, October 26, = 2007 10:49=20 AM
Subject: [FlyRotary] MAP port = location

What is the best location for MAP ports = on the=20 intake. Close to the engine or further away? I have the modified = Renesis=20 lower manifold that has two ports installed. Are these the best=20 locations for the EC2 or = should I=20 place new ones further back in the upper = manifold?
 
Thanks,
 
 
Bobby J=20 Hughes
 

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