Received-SPF: none
 receiver=logan.com; client-ip=24.25.9.101; envelope-from=eanderson@carolina.rr.com
Message-ID: <000401c4f5fa$eda243c0$2402a8c0@edward2>
From: "Ed Anderson" <eanderson@carolina.rr.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
References: <list-596269@logan.com>
Subject: Re: [FlyRotary] Re: which engine
Date: Sat, 8 Jan 2005 22:25:54 -0500
MIME-Version: 1.0
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: 7bit

Intake only, Tom

Actually, it can get a bit confusing in that both the NA 6 port and turbo 4
port on causal examination of the intake manifolds both have four intake
runners.  However, at the block the secondary of the NA 6 port divides the
airflow for two secondary intake ports.  One is call the auxiliary secondary
port which has a rotating cylinder which either opens or closes the airflow
into the secondary auxiliary port - depending on engine operating
parameters.

Most people remove this rotating cylinder in the 6 port and smooth the
auxiliary port so that the airflow is not blocked at any time.

Ed Anderson

----- Original Message -----
From: "Tom" <tomtugan@yahoo.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Saturday, January 08, 2005 10:09 PM
Subject: [FlyRotary] Re: which engine


> And,  is 4/6 the combined number of intake/exhaust ports or count of
intake
> ports only??
>
> Thanks
> Tom
>
>
> --- Ken Welter <rotary.coot@verizon.net> wrote:
>
> > >In a message dated 1/7/2005 7:10:50 PM Central Standard Time,
> > >atlasyts@bellsouth.net writes:
> > >
> > ><< On 1/7/05 8:05 PM, "Paul" <sqpilot@bellsouth.net> wrote:
> > >
> > >  > I need to query the group....which might be the best choice of
engines
> > >(going
> > >  > non-turbo)....a street ported 4-port with high compression rotors,
or a
> > >street
> > >  > ported NA 6 port with high compression rotors?  I could do it
either
> > >  > way....just don't know if one has advantages over the other.
Thanks in
> > >  > advance for all input and suggestions.  Paul Conner
> > >  >
> > >  >
> > >  > Third Gen. Turbo :)
> > >  > Bulent
> > >
> > >The 4 port is it for power hands down.
> > >
> > >Lynn E. Hanover
> > >
> >
> >
> >     How much more power at 6500 rpm do you think a third gen 4 port
> > with NA rotors would have over a 6 port ???
> >    Ken Welter
>
>
>
>
> __________________________________
> Do you Yahoo!?
> Meet the all-new My Yahoo! - Try it today!
> http://my.yahoo.com
>
>
>
> >>  Homepage:  http://www.flyrotary.com/
> >>  Archive:   http://lancaironline.net/lists/flyrotary/List.html
>