A lot of little things add up in the HP game.

 > Royce

Very Interesting, Royce.  Racing Beat sells templates for modifying
the exhaust ports depending on what has been done to the intake.  I
worry that opening either the intake or the exhaust just a few thou
too soon will seriously erode performance.  For my ports, I would
like to be a bit more conservative and stay away from that critical
line.  Easy enough to say, but not so obvious when looking at the
housing.  The Leman P Port opened very early, according to the
drawing,  yet it ran great.   Seems to fly in the face of what we
are saying here.

Jerry Hey

Tailwind & Rotary Engine Support

http://www.j-winddesigns.com

mailto:j-winddesigns@thegrid.net

Jerry all this is not as critical as you make it out to be.
You are needlessly  worried.

Paul Lamar

I would strongly suspect that a large part of the intake timing

was related to the standing waves in the variable length intake runner.

therefor just copying the port without the tuned intake, may be

counter productive - Vance

I think we all know that about now Vance. At least I hope we do :)

Paul Lamar
 
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