I'm thinking of getting a chamber fan for my gun, but I need to know how big would my chamber have to be to support a chamber fan. Or do the fans come in different sizes? Also how would I power the fan? Batteries?

Alright, thanks. I'll try your suggestion.

I think it's a 4" . Maybe I got the extra inch from the threaded cap. Also it goes "whoof" because the projectile isn't being pushed out of the barrel. The combustion isn't strong enough to do that. And the ammo doesn't really seal it tightly. The reason why is, I don't have anything to sharpen the ...

Yes I have. I read around here and that seemed to be the problem. I tried one short spray. Clicked it, and nothing. I've aired out the chamber and repeated with more or less fuel than before and still no combustion. I also tried blowing into the chamber to put in some oxygen and still no boom. Maybe...

Strange, I used the search button before I even registered here. I don't think anyone should talk down to anyone whether or not they ask a question that's been answered. Maybe only when they keep saying the same things in a particular topic.

Recently I made my first "real" spud gun. I've been experimenting with medicine bottles before and I really wanted to try this out. Here's the problem: Whenever I spray in my propellant (Aqua Net), screw on the cap, and hit the ignition system... Nothing happens. When it finally does go off, there's...