Give a few days on that. We are off to the races this weekend. I will
assemble a front iron and lay out a Pport with stock side port timing to

see what

that looks like. I will take pictures.

The recording of events in crankshaft degrees is the way to go. And once

you

get the setup constructed you can lay out ports from all over the world

with a

Magic Marker on a stock rotor housing.

The location top of the exhaust and the bottom of the intake ports

determine

the overlap period. The less over lap the stronger the low RPM power,

and the

better the idle.

If you can get your hands on a nice piece of sheet stock you can make a
perfectly acceptable degree wheel. The 90 and 45 degree marks are easy

enough and

C=PiXD (no notation available) divided by 360 gets the size of each

degree

spacing.

 Lynn E. Hanover

Lynn,
Thanks mate!
I'm following you - I also contacted Paul Yaw but he couldn't give much info
as he hasn't tested any PP for Aviation, I will forward his response.
I follow you on the degree wheel - I'm using my flight protractor at the
moment.
George (down under)

 
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