X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fmailhost06.isp.att.net ([207.115.11.56] verified) by logan.com (CommuniGate Pro SMTP 5.3.4) with ESMTP id 4180811 for flyrotary@lancaironline.net; Sat, 27 Mar 2010 11:04:51 -0400 Received-SPF: none receiver=logan.com; client-ip=207.115.11.56; envelope-from=keltro@att.net DKIM-Signature: v=1; q=dns/txt; d=att.net; s=dkim01; i=keltro@att.net; a=rsa-sha256; c=relaxed/relaxed; t=1269702290; h=Content-Type: MIME-Version:Message-Id:Date:Subject:To:From; bh=J7uk85BuOXSEGigxOO vIgOfX1eeYxNVLyWbY3dwZPoE=; b=AcuMVwD15/MOuIR+7v42Ey/DfiawI4olVwk+Z Y7UNrVC3nbu9G8zjowxf6Q5oNEQ6NNsiJWzCCzD/+PJUNatgg== Received: from fwebmail14.isp.att.net ([207.115.9.154]) by isp.att.net (frfwmhc06) with SMTP id <20100327150414H06007uoile>; Sat, 27 Mar 2010 15:04:14 +0000 X-Originating-IP: [207.115.9.154] Received: from [208.114.40.41] by fwebmail14.isp.att.net; Sat, 27 Mar 2010 15:04:13 +0000 From: "Kelly Troyer" To: "Rotary motors in aircraft" Subject: TURBO Considerations Date: Sat, 27 Mar 2010 15:04:13 +0000 Message-Id: <032720101504.13142.4BAE1E6C000EB5590000335622230650629B0A02D29B9B0EBF019D9B040A05@att.net> X-Mailer: AT&T Message Center Version 1 (Mar 2 2009) X-Authenticated-Sender: a2VsdHJvQGF0dC5uZXQ= MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="NextPart_Webmail_9m3u9jl4l_13142_1269702253_0" --NextPart_Webmail_9m3u9jl4l_13142_1269702253_0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Group, I had an interesting exchange with Chrissi and Randi (The Cosy Girrls) = concerning the "Turbonetics" TO4-E they plan on using on their "13B powered Cosy proje= ct... I had found that the 1.15 A/R ratio turbine housing they had for their T= O4-E was apparently only available with the "Twin Scroll" (two openings) inlet......= ..My question to them was if their exhaust manifold kept the 13B rotor exhaust pulses sep= arate (no common plenum before the TO4-E).............. Their answer was they use a common plenum because they use of a Waste ga= te which is correct...........My next question was had they given thought to r= ounding the flat center divider of their turbine housing to reduce turbulence and i= ncrease=20 flow which they may consider........... After this long drawn out mess my main point is if your turbo turbine ho= using is a "Twin Scroll" and your turbo exhaust manifold has all rotors exhaust i= nto a common plenum you might consider making the flat divider of the turbine = hsg more aerodynamic by rounding it for better flow...........My opinion and I = am=20 sticking to it !!........<:).........FWIW=20 -- Kelly Troyer=20 "Dyke Delta"_13B ROTARY Engine=20 "RWS"_RD1C/EC2/EM2=20 "Mistral"_Backplate/Oil Manifold=20 -------------- Forwarded Message: --------------=20 From: CGPARTS@aol.com=20 To: keltro@att.net=20 Subject: Re: Your TO4-E=20 Date: Sat, 27 Mar 2010 01:37:50 +0000=20 No we have not. We will port match it to the manifold and consider it then. Regards, Chrissi & Randi CG Products 636-946-9020 In a message dated 3/26/2010 6:25:12 P.M. Central Standard Time, keltro@att= .net writes: Girrrls, Have you given any thought to rounding the flat center divider of your turbine housing to provide a more aerodynamic and less turbulent entry for the exhaust into your TO4-E ??.............. Thanks and Best Regards, -- Kelly Troyer=20 "Dyke Delta"_13B ROTARY Engine=20 "RWS"_RD1C/EC2/EM2=20 "Mistral"_Backplate/Oil Manifold=20 -------------- Original message from CGPARTS@aol.com: --------------=20 Kelly,=20 We're not keeping it split in the manifold due to needing to dump to the wa= stegate. On all but climb you would be dumping a lot to the wastegate. Regards, Chrissi & Randi CG Products 636-946-9020 In a message dated 3/26/2010 1:19:16 P.M. Central Standard Time, keltro@att= .net writes: Girrls, I am looking at the "Turbonetics" TO4-E that I understand you have purchased for your project.............From the Rotary Group I understand your TO4-E has a 1.15 A/R ratio turbine housing.........Does your housing have the split (two) inlet and if so is your exhaust manifold outlet to the Turbo also split which effectively separates each rotors exhaust pulse from= =20 the other ??............ Thanks, -- Kelly Troyer=20 "Dyke Delta"_13B ROTARY Engine=20 "RWS"_RD1C/EC2/EM2=20 "Mistral"_Backplate/Oil Manifold=20 --NextPart_Webmail_9m3u9jl4l_13142_1269702253_0 Content-Type: multipart/related; boundary="NextPart_Webmail_9m3u9jl4l_13142_1269702253_1" --NextPart_Webmail_9m3u9jl4l_13142_1269702253_1 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable
Group,
    I had an interesting exchange with Chrissi and Rand= i (The Cosy Girrls) concerning
the "Turbonetics" TO4-E they plan on using on their "13B powered Cosy = project...
 
   I had found that the 1.15 A/R ratio turbine housing they = had for their TO4-E was
apparently only available with the "Twin Scroll" (two openings) inlet.= .......My question
to them was if their exhaust manifold kept the 13B rotor exhaust pulse= s separate (no common plenum before the TO4-E)..............
 
   Their answer was they use a common plenum becau= se they use of a Waste gate
which is correct...........My next question was had they given thought= to rounding
the flat center divider of their turbine housing to reduce turbulence = and increase
flow which they may consider...........
 
   After this long drawn out mess my main point is if y= our turbo turbine housing
is a "Twin Scroll" and your turbo exhaust manifold has all rotors= exhaust into
a common plenum you might consider making the flat divider of the turb= ine  hsg
more aerodynamic by rounding it for better flow...........My opinion a= nd I am
sticking to it !!........<:).........FWIW 
--
Kelly Troyer
"Dyke Delta"_1= 3B ROTARY Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifol= d

-------------- Forwarded Message: --------------
From: C= GPARTS@aol.com
To: keltro@att.net
Subject: Re: Your TO4-E
Date:= Sat, 27 Mar 2010 01:37:50 +0000

No we have not. We will port match it to the manifold and consider it the= n.

Regards, Chrissi & Randi
CG Products
636-946-9020
 
In a message dated 3/26/2010 6:25:12 P.M. Central Standard Time, keltr= o@att.net writes:


Girrrls,
   Have you given any thought to rounding the flat center di= vider
of your turbine housing to provide a more aerodynamic and less
turbulent entry for the exhaust into your TO4-E ??..............
 
Thanks and Best Regards,
--
Kelly Troyer
"Dyke Delta"_1= 3B ROTARY Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifol= d



 
-------------- Original message from CGPARTS@aol.com: ------= --------

 
Kelly, 
We're not keeping it split in the manifold due to needing to dump to the = wastegate. On all but climb you would be dumping a lot to the wastegate.

Regards, Chrissi & Randi
CG Products
636-946-9020
 
In a message dated 3/26/2010 1:19:16 P.M. Central Standard Time, keltr= o@att.net writes:


 


Girrls,
   I am looking at the "Turbonetics" TO4-E that I understand= you have
purchased for your project.............From the Rotary Group I underst= and
your TO4-E has a 1.15 A/R ratio turbine housing.........Does your hous= ing
have the split (two) inlet and if so is your exhaust manifold outlet t= o the
Turbo also split which effectively separates each rotors exh= aust pulse from
the other ??............
 
Thanks,
--
Kelly Troyer
"Dyke Delta"_1= 3B ROTARY Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifol= d



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