X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 2 [X] Return-Path: Received: from access.aic-fl.com ([207.30.253.2] verified) by logan.com (CommuniGate Pro SMTP 5.1.8) with ESMTP id 2039892 for flyrotary@lancaironline.net; Sat, 12 May 2007 12:09:41 -0400 Received-SPF: softfail receiver=logan.com; client-ip=207.30.253.2; envelope-from=unicorn@gdsys.net Received: from main (53.aic-fl.com [207.30.255.53]) by access.aic-fl.com (Rockliffe SMTPRA 4.5.6) with SMTP id for ; Sat, 12 May 2007 11:05:44 -0500 Message-ID: <002001c794af$e3fced60$35ff1ecf@main> From: "Richard Sohn" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: EC2 smoke question Date: Sat, 12 May 2007 11:09:15 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001D_01C79485.FA771D60" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_001D_01C79485.FA771D60 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Lynn, it is a P-Port, which certainly adds to the MAP issue. I am seeing that = on the single rotor when the MAP connection is right at the rotor = housing, even with a 40thou hole. All I do is showing it on a boost = gauge, it is unredable below 1500RPM.=20 Fortunately, it is not an issue with a carb. FWIW. Richard Sohn N2071U ----- Original Message -----=20 From: Lehanover@aol.com=20 To: Rotary motors in aircraft=20 Sent: Saturday, May 12, 2007 8:49 AM Subject: [FlyRotary] Re: EC2 smoke question In a message dated 5/12/2007 9:20:56 A.M. Eastern Daylight Time, = atlasyts@bellsouth.net writes: 240HP at 6000 RPM.=20 That is outstanding HP, even on a California dyno. Any port pictures = or porting open and close figures?=20 Sounds like the one to replicate. A typical Weber intake system from = a race shop would be quite short. Not ideal for 6,000 RPM. Better at = 9,500 to 10,000 RPM, looking for 335 HP. I remembered this from Go Karts, for small parts and even sections of = intake runner, fab the molds from kiddies modeling clay. Cast small = parts in epoxy and chopped roving or carbon fiber. Mold the intake = flanges (aluminum) right into epoxy and after a layer of epoxy has = hardened, fiberglass tape wrap the clay runner and around the flange and = let it cure.=20 Wash out the clay in kerosene and a bucket. Parts molded against the = clay come out slick and shiny. Insides of runners fantastic. If the clay = seems too oily, let the mold dry for a few days before molding.=20 Lynn E. Hanover=20 -------------------------------------------------------------------------= ----- See what's free at AOL.com.=20 -------------------------------------------------------------------------= ----- No virus found in this incoming message. Checked by AVG Free Edition.=20 Version: 7.5.467 / Virus Database: 269.6.8/797 - Release Date: = 5/10/2007 5:10 PM ------=_NextPart_000_001D_01C79485.FA771D60 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Lynn,
 
it is a P-Port, which certainly adds to the MAP = issue. I am=20 seeing that on the single rotor when the MAP connection is right at the = rotor=20 housing, even with a 40thou hole. All I do is showing it on a boost = gauge, it is=20 unredable below 1500RPM.
Fortunately, it is not an issue with a = carb.
FWIW.
 
Richard Sohn
N2071U
----- Original Message -----
From:=20 Lehanover@aol.com
Sent: Saturday, May 12, 2007 = 8:49=20 AM
Subject: [FlyRotary] Re: EC2 = smoke=20 question

In a message dated 5/12/2007 9:20:56 A.M. Eastern Daylight Time, = atlasyts@bellsouth.net = writes:
240HP=20 at 6000 RPM.=20
 
That is outstanding HP, even on a California dyno. Any port = pictures or=20 porting open and close figures?
 
 Sounds like the one to replicate. A typical Weber intake = system=20 from a race shop would be quite short. Not ideal for 6,000 RPM. Better = at=20 9,500 to 10,000 RPM,
looking for 335 HP.
 
I remembered this from Go Karts, for small parts and even = sections of=20 intake runner, fab the molds from kiddies modeling clay. Cast small = parts in=20 epoxy and chopped roving or carbon fiber. Mold the intake flanges = (aluminum)=20 right into epoxy and after a layer of epoxy has hardened, fiberglass = tape wrap=20 the clay runner and around the flange and let it cure.
Wash out the clay in kerosene and a bucket. Parts molded = against the=20 clay come out slick and shiny. Insides of runners fantastic. If the = clay seems=20 too oily, let the mold dry for a few days before molding.
 
Lynn E. Hanover 



See what's free at AOL.com.=20

No virus found in this incoming message.
Checked by AVG Free = Edition.
Version: 7.5.467 / Virus Database: 269.6.8/797 - Release = Date:=20 5/10/2007 5:10 PM
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