need some help

[unisonmind]

ok so im about half done with my new 2.5'' port piston valve for my TB cannon but i need some help


i live in a small APT. so i need to keep this as small as i can but i still want it to have some big NUTS.


2.5'' barrel is going to be 4'

so how long should i make the chamber if its going to be 4''

[SpudUke5]

Id say fo with the biggest you can without getting too heavy. Same with the barrel.

For most instances, we will never have any piping too big to decrease performance.

[jackssmirkingrevenge]

Two feet of chamber should be more than enough for a 4 feet of 2.5" barrel.

[Brian the brain]

And I say to hell with the extra noise and gas consumption.
Make it as long as your barrel is.


This will keep the driving force on you projectile as high as it can be untill it reaches the end of the barrel.
Ofcourse that means a lot of unused power goes to waste too...in the form of more noise and it means longer filling time


so wait...
That would be stupid...Jack's right...

Unless...you would increase the barrel length ..again..and..


Well..you see...there is no ideal lenght...anything from 1-4 feet will do.
Pros and cons to all sizes

[unisonmind]

ya i think im going with 20'' of 4'' pipe i have 2' of it but it just looks to big for the barrel