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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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