Is mod really worth it?

[Demon]

I am going to build an spudgun with an 3/4" anti siphon sprinkler valve:

1.5 inch x 2 foot chamber

1.25 x 3 foot barrel

3/4 inch anti siphon sprinkler valve

If i mod it, how much % of the power will be increased?

[Ragnarok]

A reasonable 20% at least I'd say, and possibly more.
However, the real advantage of modding a sprinkler is the fact it's practically equal in cost and effort, but provides that power any way - you see, the stuff to mod it only costs about the same as the batteries and switches you'd need for basic operation.

The thing I have to call on is that anti siphon valves aren't usually a great move, IIRC.

[Mr.Sandman]

definately mod it s worth it but thats not a good c:b ratio so it wont be that powerful. maybe use a piston much better performence

[Demon]

thats not a good c:b ratio

why its not a good c:b ration Mr.Sandman?

The thing I have to call on is that anti siphon valves aren't usually a great move, IIRC.

What do you mean by that Mr.Ragnarok?

[Ragnarok]

but thats not a good c:b ratio.

What's the problem?
It's pretty near 1:1, which is a decent compromise between power and efficiency.
There's a reason for any C:B ratio.
Personally, I'd say anything over 2:1 was pretty wasteful, not adding much power, but slaughtering efficiency.
Less than 0.5:1, it's efficent, you can still extract power, but the cannon's barrel will tend to be very large for it's power.

What do you mean by that Mr.Ragnarok?

I wouldn't know myself, but I'm told that anti siphon valves are less efficent than standard sprinkler valves.

But you'd need to talk to someone who knew sprinkler valves better than me.

[Demon]

I wouldn't know myself, but I'm told that anti siphon valves are less efficent than standard sprinkler valves.

The only difference between the two is then anti siphon is having an elbow

[Ragnarok]

The only difference between the two is then anti siphon is having an elbow

Externally, yes, but I believe the internals are different and less efficent.

Like I said, I'm not the expert on sprinkler valves.

[Demon]

The cap of the anti siphon mecanism(the elbow) could be unscrewed and we could take off the internal that may reduce the flow.

[SEAKING9006]

.... which is likely the entire thing. Valves are usually only made up of two or three parts, man. And elbows reduce flow efficiency. Pretty badly at lower pressures, if I recall. Anyway, they just aren't as good as a straight inline.

[clide]

I would say mods are definitely worth it although the exact % increase in power will depend on your ammo.

Also if you ever get another sprinkler valve then you might as well get a 1". Usually they are about the same price or only a couple dollars more, but they give you almost twice the flow.