Mailing List flyrotary@lancaironline.net Message #54660
From: H & J Johnson <hjjohnson@sasktel.net>
Subject: Re: [FlyRotary] Re: FW: [FlyRotary] Improved performance of my new (2009) intake manifold
Date: Fri, 22 Apr 2011 21:03:21 -0600
To: Rotary motors in aircraft <flyrotary@lancaironline.net>

Right... it is simple but I'm thinking there are people out there who maybe want a more streamlined solution [thats the hope anyway]

Also.. sorry about the miss-spell there Rino


Jarrett Johnson
www.innovention-tech.com

----- Original Message -----

From: Rino <lacombr@nbnet.nb.ca>

Date: Friday, April 22, 2011 6:16 pm

Subject: [FlyRotary] Re: FW: [FlyRotary] Improved performance of my new (2009) intake manifold

> I have not seen the Rv8 manifold, I am talking about the Rv3.
>
> Rino
>  ----- Original Message -----
>  From: H & J Johnson
>  To: Rotary motors in aircraft
>  Sent: Friday, April 22, 2011 3:37 PM
>  Subject: [FlyRotary] Re: FW: [FlyRotary] Improved performance of
> my new (2009) intake manifold
>
>
>  Rhino are we talking the Rv8 intake or the Rv3?
>
>  Jarrett Johnson
>  www.innovention-tech.com
>
>
>
>
>  ----- Original Message -----
>
>  From: Rino <lacombr@nbnet.nb.ca>
>
>  Date: Friday, April 22, 2011 11:29 am
>
>  Subject: [FlyRotary] Re: FW: [FlyRotary] Improved performance of
> my new (2009) intake manifold
>
>
>  > If you want simplicity and effectivity, look at Tracy's intake
>  > manifold.
>  > Rino Lacombe
>  >
>  >
>  >  ----- Original Message -----
>  >  From: H & J Johnson
>  >  To: Rotary motors in aircraft
>  >  Sent: Thursday, April 21, 2011 5:53 PM
>  >  Subject: [FlyRotary] Re: FW: [FlyRotary] Improved performance
> of
>  > my new (2009) intake manifold
>  >
>  >
>  >  Bill that is a pretty wild looking manifold! I can see that
> it
>  > was intended to benifit from DIE? I've been leaning more
> towards a
>  > close fitting 'over the top' manifold
>  >
>  >  which would be usable for either pusher or tractor installs,
>  > however it would be somewhat simpler than the pictured unit.
> It
>  > would take alot of 'study' and prep work to
>  >
>  >  get a cast unit in that configuration. More than likely it
> would
>  > need to be hand fab'd and welded [same as what is pictured].
> This
>  > is 'doable' but the added cost of getting
>  >
>  >  all those parts together and into a working unit, would push
> the
>  > cost up past the 'reasonable' level. At least as far as i can
> tell
>  > from a your picture.  Of course I could be seeing
>  >
>  >  more complexity there than actually exists. However, that
> being
>  > said I'm open to all options and suggestions on how it could
> be
>  > made to work! :)
>  >
>  >
>  >
>  >  Best regards
>  >
>  >  Jarrett Johnson
>  >  www.innovention-tech.com
>  >
>  >
>  >
>  >
>  >
>  > ---------------------------------------------------------------
> ----
>  > -----------
>  >
>  >
>  >  Jarrett,
>  >
>  >  
>  >
>  >  If you want to build an intake manifold, I suggest you build
> one
>  > that works well like the one Dennis came up with or if he has
> a
>  > better idea now, try it. 
>  >
>  >  
>  >
>  >  See the attached msg.
>  >
>  >  
>  >
>  >  I believe that you would have to build this for $500 or so to
>  > sell many and it would require at least 3 iterations, 13B,
>  > Renesis, and 20B.  I assume all the early 13B intakes are the
> same???
>  >
>  >  
>  >
>  >  Bill B
>  >
>  >  
>  >
>  >
>  > ---------------------------------------------------------------
> ----
>  > -----------
>  >
>  >  From: Rotary motors in aircraft [flyrotary@lancaironline.net]
> On
>  > Behalf Of Dennis Havarlah
>  >  Sent: Wednesday, November 10, 2010 3:27 PM
>  >  To: Rotary motors in aircraft
>  >  Subject: [FlyRotary] Improved performance of my new (2009)
>  > intake manifold
>  >
>  >  
>  >
>  >  As some of you know I started flying my RV-7A with a cut -
> off
>  > Renesis intake manifold.  In 2009 I installed an new intake
>  > designed to route pressure waves from the closing of rotor
> #1's
>  > intake into rotor #2 just before rotor #2's intake closed. 
> After
>  > using the new intake for over a year I am still very happy
> with
>  > it's performance.
>  >
>  >  
>  >
>  >  I gained about 15 mph TAS at the same altitude and manifold
> pressure
>  >
>  >  My static engine rpm increased 300 to 350 rpm.
>  >
>  >  My takeoffs are faster and shorter with noticeable increase
> in
>  > acceleration
>  >  My climb rate increased
>  >
>  >  My oil and water cooling is more critical now because I make
>  > more HP.
>  >
>  >  
>  >
>  >  But - I must confess I don't believe the manifold can be
>  > reproduced economically.  It's just too complicated.
>  >
>  >  I also believe it should have slightly shorter intake runners
> to
>  > increase the performance at higher RPM.  Decreasing the intake
>  > runner length probably would require complete new geometry of
> the
>  > system.
>  >  
>  >
>  >  I have another concept for designing a Renesis intake that
> using
>  > a reflected wave from Rotor #1 returning to Rotor #1 .  
>  >
>  >  I believe it would be much easier to build and small enough
> to
>  > fit into the James rotorary cowl but because my intake works
> well
>  > I am not moving ahead with completing the design and building
> it.
>  >
>  >  
>  >
>  >  Dennis Haverlah
>  >
>  >  
>  >
>  >  
>  >
>  >  
>  >
>  >
>  >
>  > ---------------------------------------------------------------
> ----
>  > -----------
>  >
>  >
>  >  --
>  >  Homepage:  http://www.flyrotary.com/
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>  > http://mail.lancaironline.net:81/lists/flyrotary/List.html
>  >
>  >
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> ----
>  > -----------
>  >
>  >
>  >  --
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>
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>
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