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Date: Sun, 13 Mar 2005 07:35:58 -0500
Subject: Re: [FlyRotary] peripheral ports
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From: Jerry Hey <jerryhey@earthlink.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
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Paul,  first I want to say that I am not the expert.  I have not yet=20
completed building my own p port.  The major difference between our p=20
ports and those found in race cars  is that our engines are  limited to=20=

7500 rpm (or in my case to 6000 rpm).  These are very low rpm numbers=20
for a p port. Never-the -less considerable power can be developed. =20
Probably up to 250 hp @ 7500 rpm.  I am hoping for 220 hp at 6000 rpm=20
which is more power than my Tailwind will ever need.  It is my =20
understanding after talking to a lot of people that at our rpms you can=20=

leave the exhaust port stock with the splitters installed.  Like Buly=20
said,   close off all the stock intake passages with epoxy.     Jerry


On Saturday, March 12, 2005, at 09:57  PM, Paul wrote:

> Hi, all....I need to make an inquiry regarding peripheral ports.=A0 I=20=

> understand that the housings get the round peripheral ports installed,=20=

> and that the exhaust port is also modified to complete the P-Port=20
> modification to the rotor housings.
> =A0=A0=A0=A0 What, if anything needs to be done to the existing center =
and end=20
> plates?=A0 If I purchase a set of p-ported housings, can I use the=20
> e-shaft and rotors from either my 1989 4-port turbo engine with it's=20=

> 9.0 compression rotors, or the e-shaft and rotors from my 1988 NA=20
> 6-port engine with it's 9.4 compression rotors?=A0 Or would I be =
better=20
> off using the street-ported 4-port center and end plates? I asked Paul=20=

> Lamar, but I didn't understand his short answer.=A0 He mentioned =
epoxy,=20
> but is that for the p-port housings or do you block off the ports in=20=

> the front, rear and center plates that have the triangular ports in=20
> them?=A0 Thanks in advance for all replies.=A0 Unfortunately, I am not=20=

> familiar with the internals of this engine, and how the stock porting=20=

> works (or doesen't work) with peripheral ports.=A0=A0 Paul Conner
> =A0

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Paul,  first I want to say that I am not the expert.  I have not yet
completed building my own p port.  The major difference between our p
ports and those found in race cars  is that our engines are  limited
to 7500 rpm (or in my case to 6000 rpm).  These are very low rpm
numbers for a p port. Never-the -less considerable power can be
developed.  Probably up to 250 hp @ 7500 rpm.  I am hoping for 220 hp
at 6000 rpm which is more power than my Tailwind will ever need.  It
is my  understanding after talking to a lot of people that at our rpms
you can leave the exhaust port stock with the splitters installed.=20
Like Buly said,   close off all the stock intake passages with epoxy.   =20=

Jerry


On Saturday, March 12, 2005, at 09:57  PM, Paul wrote:


<excerpt><fontfamily><param>Arial</param><smaller>Hi, all....I need to
make an inquiry regarding peripheral ports.=A0 I understand that the
housings get the round peripheral ports installed, and that the
exhaust port is also modified to complete the P-Port modification to
the rotor housings.</smaller></fontfamily>

<fontfamily><param>Arial</param><smaller>=A0=A0=A0=A0 What, if anything =
needs
to be done to the existing center and end plates?=A0 If I purchase a set
of p-ported housings, can I use the e-shaft and rotors from either my
1989 4-port turbo engine with it's 9.0 compression rotors, or the
e-shaft and rotors from my 1988 NA 6-port engine with it's 9.4
compression rotors?=A0 Or would I be better off using the street-ported
4-port center and end plates? I asked Paul Lamar, but I didn't
understand his short answer.=A0 He mentioned epoxy, but is that for the
p-port housings or do you block off the ports in the front, rear and
center plates that have the triangular ports in them?=A0 Thanks in
advance for all replies.=A0 Unfortunately, I am not familiar with the
internals of this engine, and how the stock porting works (or doesen't
work) with peripheral ports.=A0=A0 Paul Conner</smaller></fontfamily>

=A0

</excerpt>=

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