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
>
>
>
>
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