Jerry, have you looked into getting your
P-port insert rapid cast? If I remember correctly it has a complex internal geometry.
http://www.protcast.com/foundry.htm
Alex Madsen
PS While you are at it how about some AL side housings ;)
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]
On Behalf Of Jerry Hey
Sent: Monday, March 14, 2005 6:42
PM
To: Rotary
motors in aircraft
Subject: [FlyRotary] Re:
peripheral ports
On Monday, March 14, 2005, at 01:26 PM, Richard Sohn wrote:
----- Original Message -----
From: Jerry
Hey
To: Rotary
motors in aircraft
Sent: Monday, March 14, 2005 5:33
AM
Subject: [FlyRotary] Re:
peripheral ports
On Monday, March 14, 2005, at 08:02 AM, Paul wrote:
Paul, all the companies you list sell housings with BIG p - ports and massive
overlap. They are designed to develop tremendous hp at high rpm for racing. Of
course they don't idle smoothly. These engines have nothing to do with the
smaller, conservatively timed p ports that we wish to use as aircraft engines.
Jerry
Jerry,
what are you calling consevatively timed
p-ports?
Just want to see
were I stand with mine.
Richard Sohn
N-2071U
Richard here is the timing on my p port. I.O.= 78º BTDC I.C.= 75º ABDC
In the attached drawing the opening and closing events are measured from the
housing center line. My p port is on the left. The Leman p port is on the
right. Jerry