Ok I mess it somewhere.why is the internal spring in plenum removed.on power plenum.
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Impact plenium
- Thread starter Hatmike
- Start date
I would expect there are several reasons for moving the spring.
1- A much smaller spring can be used if it is moved to the outside of the plenum under the valve adjuster knob. Smaller likely means less expensive.
2- Moving the spring, outboard of the plenum, leaves a bit more room for gas, inside the plenum, so a bit more power or a shot or two more.
3- If the spring can be accessed from the outside it makes it replaceable without tearing the gun all apart. So the gun can easily tuned with a valve spring change to change velocities drastically or just slightly as one chooses.
1- A much smaller spring can be used if it is moved to the outside of the plenum under the valve adjuster knob. Smaller likely means less expensive.
2- Moving the spring, outboard of the plenum, leaves a bit more room for gas, inside the plenum, so a bit more power or a shot or two more.
3- If the spring can be accessed from the outside it makes it replaceable without tearing the gun all apart. So the gun can easily tuned with a valve spring change to change velocities drastically or just slightly as one chooses.
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