Message-ID: 
Newsgroups: AIRGUN.LIST
Rich Hume wrote:
> Mike,
>
> There was a long article about a guy in Miami tuning
> his Falcon rifle in USA Airgun  a few years ago.  He had some interesting=
>
> numbers =
>
> surrounding the relationship with springs, valve area,
> duration etc.  He was tuning for a better relationship =
>
> between speed and number of shots.
>
> If you can't find it, I will look it up.
>
> - Rich Hume
====================Mike,
The two variables you are missing is the clearance between valve and housing,
which helps slam the valve shut faster on high pressure (make clearance
smaller), and slower on lower pressure,  plus ,ore hammer weight, which helps
extend valve duration at lower pressures.  I have not varied these factors on
the Tua yet and have to settle for 45 "good" shots at 12-13ftlbs so far, or 
0
good shots at 18-19 ftlbs.
ld
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