X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from QMTA04.westchester.pa.mail.comcast.net ([76.96.62.40] verified) by logan.com (CommuniGate Pro SMTP 5.2.0) with ESMTP id 2755994 for flyrotary@lancaironline.net; Sun, 24 Feb 2008 22:30:02 -0500 Received-SPF: none receiver=logan.com; client-ip=76.96.62.40; envelope-from=cbarber@texasattorney.net Received: from OMTA05.westchester.pa.mail.comcast.net ([76.96.62.43]) by QMTA04.westchester.pa.mail.comcast.net with comcast id tbNh1Y0020vyq2s540DN00; Mon, 25 Feb 2008 03:28:53 +0000 Received: from ChristopherNB ([98.200.104.55]) by OMTA05.westchester.pa.mail.comcast.net with comcast id tfVN1Y00A1Bjm5N3R00000; Mon, 25 Feb 2008 03:29:24 +0000 X-Authority-Analysis: v=1.0 c=1 a=VAOGX8Kih1cA:10 a=ksOvOVPORoEy_wqmG7EA:9 a=dyV6LGZ-wECfPARMlOoA:7 a=TFEW9TxnkUM-sopnkZeIb82n9AIA:4 a=gi0PWCVxevcA:10 a=W0b7NVxTtLhPyLm8sAIA:9 a=vhQyHtOZWaT78eh_f8cA:7 a=RtDb0xyAGFijPTDAW6AoPTZVkxAA:4 a=AfD3MYMu9mQA:10 Message-ID: <4DCEAD92D81C4FB19BE831E37C8DF906@ChristopherNB> From: "Christopher Barber" To: Subject: Musings, Curiosities and Frustrations RE: My rotary install Date: Sun, 24 Feb 2008 21:29:20 -0600 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_05E6_01C8772C.51585930" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Windows Mail 6.0.6000.16480 X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6000.16545 This is a multi-part message in MIME format. ------=_NextPart_000_05E6_01C8772C.51585930 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I received my EC2/EM back from Tracy a week or so again and got it all = installed (luckily my EC2 is in an easy access location on the cabin = side firewall of my Velocity). After messin' with stuff and holding my = tongue just right I have gotten my engine to fire up and run. Thank = heavens, but now I have some questions for the collective regarding its = running and some issues I am unsure about. First, it seems if the stars are all aligned just right and Taurus is in = sync with Venus, I have gotten the engine to start my last three trips = to the hangar, however, I have not been able to get it to RE-start = following the initial start-up. It comes close and it will cough and = spew and fire but not quite start. So, it seems hard to start initially, = even though it has started when cold but then does not want to start = once run for several minutes. Thoughts? Second, on the EM, I will advance the throttle and watch the RPM rise, = but as I get to around 4500 rpm the rpm's start jumping around up to = like 6500 then drops to 2000, then maybe to 4000 rpm every couple of = seconds (I do not have NOP displayed though)....this is ONLY on the EM = the engine is churning steadily at a high RPM, but I have no idea of = what the rpm's really are. In the lower rpm's the monitor seems to be = more consistent....but actually it will jump around a bit too, but still = has a more realistically even display at what I believe the rpm's = actually are. Thoughts? Third, a bit more of a philosophical question. If we are using heat = exchangers that are maybe about the same size as used in a car why do we = seem to have cooling problems when the cars don't. Is it that when cars = are stationary in traffic the rpm's remain pretty low and if they were = revving at high rpm's they too would heat up faster? (also some = seriously refined engineering from the auto manufacturers). I have not = tweaked my cooling yet, but I have a pretty big radiator but I seem to = be getting over 200 degree's F after only several minutes of running. = It does take longer if it is running around 1000 rpm or below. I was = just curious as to why it does not seem to transfer from cars to our use = more directly. Would this be likely a non issue if I had 150 or so mph = ram air being forced through the rad and oil cooler? But again, like I = have said, my system has not been tweaked since I just got my computers = back and just got it running again (also, being in Houston likely does = not help any...even though it was a very pleasant 85 with low humidity = today. Would colder weather make much of a difference?) How long = should I expect to run the engine while stationary during engine testing = and refinement before needing to shut down? Tracy mentioned in the = manual that during "Auto Tune" mode, which may take about 10 minutes or = so that if the engine gets too hot, to shut down and start where you = left off after the engine cools. Is this about right, 10 minutes, or = so, and the engine may start to approach red line. If so, I may be = about right already. Thoughts? Finally, for now anyway, the rear seal on my "B" redrive failed. and I = was having oil spread out from the rear of the redrive I replaced the = seal (9009 IIRC) per Tracy's phone instructions and checked to make sure = the passages where clear, but low and behold, it is leaking again. = Sorry, not much to go on. I will disassemble again and check when I get = a chance though. Thoughts? As always thanks for the insight. I know I can get too close to the = issue and having a fresh perspective from y'all can be very helpful and = give me a chance to step away and go "of course" once it is pointed out = to me. Thanks. All the best, Chris Barber Houston ------=_NextPart_000_05E6_01C8772C.51585930 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
I received my EC2/EM back from Tracy a = week or so=20 again and got it all installed (luckily my EC2 is in an easy access = location on=20 the cabin side firewall of my Velocity).  After messin' with stuff = and=20 holding my tongue just right I have gotten my engine to fire up and = run. =20 Thank heavens, but now I have some questions for the collective = regarding its=20 running and some issues I am unsure about.
 
First, it seems if the stars are all = aligned just=20 right and Taurus is in sync with Venus, I have = gotten the=20 engine to start my last three trips to the hangar, however, I have not = been able=20 to get it to RE-start following the initial start-up.  It comes = close and=20 it will cough and spew and fire but not quite start. So, it seems hard = to start=20 initially, even though it has started when cold but then does not want = to start=20 once run for several minutes. Thoughts?
 
Second, on the EM, I will advance the = throttle and=20 watch the RPM rise, but as I get to around 4500 rpm the rpm's start = jumping=20 around up to like 6500 then drops to 2000, then maybe to 4000 rpm every = couple=20 of seconds (I do not have NOP displayed though)....this is ONLY on the = EM the=20 engine is churning steadily at a high RPM, but I have no idea of what = the rpm's=20 really are. In the lower rpm's the monitor seems to be more = consistent....but=20 actually it will jump around a bit too, but still has a more = realistically even=20 display at what I believe the rpm's actually are.  = Thoughts?
 
Third, a bit more of a philosophical=20 question.  If we are using heat exchangers that are maybe about the = same=20 size as used in a car why do we seem to have cooling problems when the = cars=20 don't. Is it that when cars are stationary in traffic the rpm's remain = pretty=20 low and if they were revving at high rpm's they too would heat up = faster? (also=20 some seriously refined engineering from the auto = manufacturers).  I=20 have not tweaked my cooling yet, but I have a pretty big radiator but I = seem to=20 be getting over 200 degree's F after only several minutes of = running.  It=20 does take longer if it is running around 1000 rpm or below.  I was = just=20 curious as to why it does not seem to transfer from cars to our use more = directly.  Would this be likely a non issue if I had 150 or so mph = ram air=20 being forced through the rad and oil cooler? But again, like I have = said, my=20 system has not been tweaked since I just got my computers back and just = got it=20 running again (also, being in Houston likely does not help any...even = though it=20 was a very pleasant 85 with low humidity today.  Would colder = weather make=20 much of a difference?)  How long should I expect to run the engine = while=20 stationary during engine testing and refinement before needing to shut = down?=20 Tracy mentioned in the manual that during "Auto Tune" mode, which may = take about=20 10 minutes or so that if the engine gets too hot, to shut down and start = where=20 you left off after the engine cools.  Is this about right, 10 = minutes, or=20 so, and the engine may start to approach red line.  If so, I may be = about=20 right already.  Thoughts?
 
Finally, for now anyway, the rear seal = on my "B"=20 redrive failed. and I was having oil spread out from the rear of = the=20 redrive  I replaced the seal (9009 IIRC) per Tracy's phone = instructions and=20 checked to make sure the passages where clear, but low and behold, it is = leaking=20 again. Sorry, not much to go on.  I will disassemble = again=20 and check when I get a chance though. Thoughts?
 
As always thanks for the insight.  = I know I=20 can get too close to the issue and having a fresh perspective from y'all = can be=20 very helpful and give me a chance to step away and go "of course" once = it is=20 pointed out to me.
 
Thanks.
 
All the best,
 
Chris Barber
Houston
 
 
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