X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.2 cv=HLeBLclv c=1 sm=1 tr=0 a=87oQo0nSFdS8ByzVrPW7tw==:117 a=55z/sxGcUIPVrBMYBb4HRw==:17 a=x7bEGLp0ZPQA:10 a=_Z_nqdSeG58A:10 a=7mUfYlMuFuIA:10 a=r77TgQKjGQsHNAKrUKIA:9 a=pGLkceISAAAA:8 a=QhLrsF9qAAAA:8 a=Ia-xEzejAAAA:8 a=7g1VtSJxAAAA:8 a=HFdb1yljZqbHnjQqAf8A:9 a=QEXdDO2ut3YA:10 a=Qa1je4BO31QA:10 a=gvSQh4r-fQ0A:10 a=4PR2P7QzAAAA:8 a=75p-Jf6vTbe5WJxYvp0A:9 a=tlu9khUPvYTBiZWl:21 a=_W_S_7VecoQA:10 a=i4tH8neNAzHi3qRh_LgF:22 a=Urk15JJjZg1Xo0ryW_k8:22 a=grOzbf7U_OpcSX4AJOnl:22 a=4dqwQCo7Po2mVW515mGf:22 From: "Neil Unger 12348ung@gmail.com" Received: from mail-pl0-f46.google.com ([209.85.160.46] verified) by logan.com (CommuniGate Pro SMTP 6.2.5) with ESMTPS id 11292757 for flyrotary@lancaironline.net; Sat, 23 Jun 2018 03:26:03 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.160.46; envelope-from=12348ung@gmail.com Received: by mail-pl0-f46.google.com with SMTP id c41-v6so4477089plj.10 for ; Sat, 23 Jun 2018 00:26:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-language; bh=l6J+lwpxXL4T+VH5GMisUr7V5xvyXrnjbIC2TG+nDEI=; b=lLG/AQf9zsnNnXI55RgBN02bxmI6/33/8vjDBovmP+CNMLio280q3h4e7oAxOo1gIk DYPcRla2Wk6iDi78FNT264rqbGNOsKw76VRfOgM2BRPzoMLSAc9N/JGriEAAccyBCiz1 QL4/pAj4Pr/2/NLN1gJj3ehCV6MW9dYfWWxbNlwmzicf+l4nMhnCzfRBgOKyyA7xjkOU dEajlxHrvkBMcMPAqMIs83DmWTia69zfgCkNKssXBPw16S9ejSup/1vIyuNNDRZy7fdf eKfIkWtD1iwoYhKjD4qYbK7ziIgAiLpqcY2VhgRcTmyMszkEOVGerIiwmFd85RK5nc5q Z34Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language; bh=l6J+lwpxXL4T+VH5GMisUr7V5xvyXrnjbIC2TG+nDEI=; b=XnW3+sltAqkWzxabD7RtcVx+jt6p+bXk4ji3sg5hjAhbQb1KSFM1SNaFhqQdOc9Jrg Jw3649dC5qrvLDuiAG05bbNvEtNEWjxMGhWkCN/k9TLkI7NprUUVLt+Fru/IJvfpe1N9 dO9wAk9/7u3v2cReS7mL8DwARnSkGul99kp/0lV3Wx1Mt976VFjBpJQPikP+2nJwJHFA oYd6ckZvzNLc1FwXzh6sZieyBErdmbwoaGNirNDIqDp+JJy4088jXRJ4jowq5/r3NerS tMBuZmrRGXHJPBxS5jGSNhTWRQC5rxTz8zWoZ/jTTG/DVnylc+luj6BdpM1YgoERGD2D TvwA== X-Gm-Message-State: APt69E0LWtRAUPmRYPOJe0/vlHpGMOR7FmlWGMqEfxq7yj/KxROJipg6 NCUio00fJegQa2hqZyCdFVVeqpmY X-Google-Smtp-Source: ADUXVKJRcJs3XcVN3e6Xv5rpPePAdakIS0U1e0xWx6gW6rrGUreeBFZJeOWo4w/KQOp8RmzQUOHRbQ== X-Received: by 2002:a17:902:7782:: with SMTP id o2-v6mr1155005pll.93.1529738747043; Sat, 23 Jun 2018 00:25:47 -0700 (PDT) Return-Path: <12348ung@gmail.com> Received: from [192.168.0.103] ([103.198.24.78]) by smtp.gmail.com with ESMTPSA id k69-v6sm16320022pgc.39.2018.06.23.00.25.44 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 23 Jun 2018 00:25:45 -0700 (PDT) Subject: Re: [FlyRotary] Re: EWP To: Rotary motors in aircraft References: Message-ID: Date: Sat, 23 Jun 2018 17:25:39 +1000 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.8.0 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/alternative; boundary="------------548747574F2109EA047010C4" Content-Language: en-US This is a multi-part message in MIME format. --------------548747574F2109EA047010C4 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Todd,  THat helps a lot.,  Alex from davies Craig recommended the 130 lit / min, but since it is all controlled and the 150 lit/min is the same price, I am leaning towards that one.  L:uckily I have another engine on the floor, so I can make whatever adapter using that engine as the template.  IN this climate you cannot have enough cooling.  First I have to finish my cooling changes, in that I made the mistake of having the hot air exhaust from the rads into the cowling, mainly as I could make a very sexy cowling.  Didn't work, so now having the hot air exiting under the cowling to the outside air just as the original where I could not get it hot at all.  I am also looking very closely at the thermostat  (mazda) housing and feel it is a huge restriction. Will know once I finish the cowl.  With the EWP I no longer will need the thermostat.  Sadly all takes time. Neil. On 6/23/2018 3:19 PM, Todd Bartrim bartrim@gmail.com wrote: > Hi Neil; >   I have the 80 lpm version as seen here > https://daviescraig.com.au/product/ewp80-lcd-controller-combo-12v-8907/ewp80-lcd-controller-combo-12v-8907 > > When I first bought it many years ago, it was the only one they had. > All the other products are new since then. So when I was looking to > upgrade my controller to this new one, I ended up buying the combo kit > as shown here. (actually the controller shown is even a newer design > than the one I recently bought). >   So I have 2 of these pumps in series with one before the rads and > the other after the rads. The controller varies the speed on the > primary pump as needed and switches on the secondary pump (with no > speed control) as needed. The switch I use for the secondary pump is > meant for an electric fan. >   If I was doing it again I would likely consider one of the larger > pumps. I don't know what you are using for a rad but many builders now > have a single large rad under the engine and I'm not sure how or if > that would have any effect on flow ability. >   I should mention that one recent change that I made was with my > rads. I'm one of those guys still using a set of old ford pick-up > evaporator cores on either side of my prop spinner. I previously had > them plumbed in parallel with the thought that they may be less > restrictive, but the problem with that is you can never ensure equal > flow through both and the required plumbing was not really my favorite > part of the install. So I have now converted it to a series > configuration so all flow must go through both. It is more restrictive > but I'm ensured a far greater delta T and the plumbing is much, much > nicer. I installed a Mocal oil/water heat exchanger which is what > prompted this change, so I'm quite happy with it now. >   Ground running so far it seems better than it was before. But I'll > wait until after full flight testing before confirming that series is > better than parallel. > > Todd > > > Todd Bartrim > > On Fri, Jun 22, 2018 at 8:59 PM, Neil Unger 12348ung@gmail.com > > wrote: > > Todd, Further to the EWP saga, do you remember what capacity your > pump is?  Is it the 130 L/Min or the larger 150 l/min?  The more I > look the more impressed I get.  Looking at my installation I have > heaps of room to mount the pump basically "under" the engine, > which finally gives me a water pump as low as possible rather than > the existing top of the engine.  Neil. > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html > > > --------------548747574F2109EA047010C4 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit

Todd,  THat helps a lot.,  Alex from davies Craig recommended the 130 lit / min, but since it is all controlled and the 150 lit/min is the same price, I am leaning towards that one.  L:uckily I have another engine on the floor, so I can make whatever adapter using that engine as the template.  IN this climate you cannot have enough cooling.  First I have to finish my cooling changes, in that I made the mistake of having the hot air exhaust from the rads into the cowling, mainly as I could make a very sexy cowling.  Didn't work, so now having the hot air exiting under the cowling to the outside air just as the original where I could not get it hot at all.  I am also looking very closely at the thermostat  (mazda) housing and feel it is a huge restriction.  Will know once I finish the cowl.  With the EWP I no longer will need the thermostat.  Sadly all takes time.

Neil.


On 6/23/2018 3:19 PM, Todd Bartrim bartrim@gmail.com wrote:
Hi Neil;
  I have the 80 lpm version as seen here 

When I first bought it many years ago, it was the only one they had. All the other products are new since then. So when I was looking to upgrade my controller to this new one, I ended up buying the combo kit as shown here. (actually the controller shown is even a newer design than the one I recently bought).
  So I have 2 of these pumps in series with one before the rads and the other after the rads. The controller varies the speed on the primary pump as needed and switches on the secondary pump (with no speed control) as needed. The switch I use for the secondary pump is meant for an electric fan.
  If I was doing it again I would likely consider one of the larger pumps. I don't know what you are using for a rad but many builders now have a single large rad under the engine and I'm not sure how or if that would have any effect on flow ability.
  I should mention that one recent change that I made was with my rads. I'm one of those guys still using a set of old ford pick-up evaporator cores on either side of my prop spinner. I previously had them plumbed in parallel with the thought that they may be less restrictive, but the problem with that is you can never ensure equal flow through both and the required plumbing was not really my favorite part of the install. So I have now converted it to a series configuration so all flow must go through both. It is more restrictive but I'm ensured a far greater delta T and the plumbing is much, much nicer. I installed a Mocal oil/water heat exchanger which is what prompted this change, so I'm quite happy with it now. 
  Ground running so far it seems better than it was before. But I'll wait until after full flight testing before confirming that series is better than parallel.

Todd


Todd Bartrim

On Fri, Jun 22, 2018 at 8:59 PM, Neil Unger 12348ung@gmail.com <flyrotary@lancaironline.net> wrote:
Todd,  Further to the EWP saga, do you remember what capacity your pump is?  Is it the 130 L/Min or the larger 150 l/min?  The more I look the more impressed I get.  Looking at my installation I have heaps of room to mount the pump basically "under" the engine, which finally gives me a water pump as low as possible rather than the existing top of the engine.  Neil.


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