Return-Path: <13brv3@bellsouth.net> Received: from imf22aec.mail.bellsouth.net ([205.152.59.70] verified) by logan.com (CommuniGate Pro SMTP 4.2) with ESMTP id 394700 for flyrotary@lancaironline.net; Sun, 05 Sep 2004 22:28:02 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.70; envelope-from=13brv3@bellsouth.net Received: from rd ([65.6.194.9]) by imf22aec.mail.bellsouth.net (InterMail vM.5.01.06.08 201-253-122-130-108-20031117) with ESMTP id <20040906022733.IOKH1789.imf22aec.mail.bellsouth.net@rd>; Sun, 5 Sep 2004 22:27:33 -0400 From: "Russell Duffy" <13brv3@bellsouth.net> To: "Flyrotary List" Subject: Rev 3.1 static tests Date: Sun, 5 Sep 2004 21:25:52 -0500 Message-ID: <000001c493b8$d4d486e0$6101a8c0@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C4938E.EBFE7EE0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C4938E.EBFE7EE0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Greetings, =20 Well, my week of fiberglass hell seems to have paid off. As you may = recall, I got 5500 rpm with my old inlet ducting, 5700 with the ducting removed, 5820 with the ducting removed, and short air horns on the TB. Today, = with all the new inlet installed, I got 6000 static. I'm pretty happy about this. Tracy reported 6200 at 120-130mph in climb, and I'm sure I can = top that now. =20 =20 I only saw 27 MAP at full throttle static though, but I can't say I ever tried this when I thought all was well (and was NA). Has anyone tied = their plane down, and run full throttle to see what the MAP actually reads? = 27 still sounds low, but I just don't think it can be improved in the = current configuration, and may just be a reporting error from the way the ports = are mounted in the TB. =20 =20 The downside to all this success is cooling. I used to be able to run = on the ground for minutes at full throttle without overheating. Not = anymore. I exceed 200 in seconds at full throttle, and I saw a max of about 220 degrees for both water and oil during my brief-as-possible runs today. = The water might be OK on climb with some airflow, but the oil is going to overheat quickly. It doesn't make sense to have more power, and not be = able to use it, so I'm sure my next big project is to improve the oil = cooling. =20 =20 Fortunately, after next weekend, I'll have a SlingShot to fly, while I fiddle with the RV-3 for the rest of my life :-) =20 Cheers, Rusty (one solution, leads to a new problem) ------=_NextPart_000_0001_01C4938E.EBFE7EE0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
Greetings,
 
Well, my week = of fiberglass=20 hell seems to have paid off.  As you may recall, I got 5500 rpm = with my old=20 inlet ducting, 5700 with the ducting removed, 5820 with the ducting = removed, and=20 short air horns on the TB.  Today, with all the new inlet = installed, I got=20 6000 static.  I'm pretty happy about this.  Tracy = reported 6200=20 at 120-130mph in climb, and I'm sure I can top that now. =20
 
I only saw 27 = MAP at full=20 throttle static though, but I can't say I ever tried this when I thought = all was=20 well (and was NA).  Has anyone tied their plane down, and run full = throttle=20 to see what the MAP actually reads?  27 still sounds low, but I = just don't=20 think it can be improved in the current configuration, and may just be a = reporting error from the way the ports are mounted in the TB. =20
 

The downside to=20 all this success is cooling.  = I used=20 to be able to run on the ground for minutes at full throttle without=20 overheating.  Not = anymore.  I exceed 200 in seconds at = full=20 throttle, and I saw a max of about 220 degrees for both water and oil = during my=20 brief-as-possible runs today.  = The=20 water might be OK on climb with some airflow, but the oil is going to = overheat=20 quickly.  It doesn’t = make sense to=20 have more power, and not be able to use it, so I’m sure my next = big project is=20 to improve the oil cooling. =20

 

Fortunately, after next=20 weekend, I'll have a SlingShot to fly, while I fiddle with the RV-3 for = the rest=20 of my life :-)

 

Cheers,

Rusty (one = solution,=20 leads to a new = problem)

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