Homemade PVC Train Horns

[Gun Freak]

Saw these on the YouTubes, thought they were pretty cool so I made some
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Anybody else have any experience in this field?

[velocity3x]

Great work! They certainly have a realistic sound.

[jackssmirkingrevenge]

Haha loved the Halloween comment at the end

Nice... so basically the diaphragms oscillate with the pressure, acting as a sort of fast cycling pop-off valve?

Your neighbours must love you

[Gun Freak]

Exactly right, the pulsating air is what creates the sound wave, amplified by the bell (funnel).

The neighbors are all aware of what I do and are generally pretty tolerant... But I still try to keep the horn blasting to a minimum

Thanks velocity, it sounds pretty good for a 2-bell horn setup, which I wasn't expecting. 3 would be better but... They're too big for my little Cavalier so I did what I could with two horns.

[Blitz]

I have a little experience monkeying around with these kind of horns. (Not homemade).

I like. I feel inspired to make something like these for my car, not. Too big for your Cavalier? Balderdash!

[Gun Freak]

Go for it. They're so cheap that even if you don't mount them on anything you still have fun making them and testing them haha

[Blitz]

I actually was considering one as a warning for when I would be firing my MFIC.

[Gun Freak]

Oh come on you're just looking for an excuse to make a set

Honestly I think train horns are a bit overkill for that sort of thing. You could get away with a much smaller horn.

[Blitz]

Oh come on you're just looking for an excuse to make a set

Honestly I think train horns are a bit overkill for that sort of thing. You could get away with a much smaller horn.

Well duh.

I actually was thinking about a homemade siren, as opposed to a horn.

[Gun Freak]

I've seen those before... Hmmm... Seems more appropriate for your application, but to me they seem harder to build, especially to make a really loud one. But, to each his own I guess.

[Blitz]

Yeah, there's certainly more work involved.

[mark.f]

http://en.wikipedia.org/wiki/Chrysler_air_raid_siren

Stuff this in your Cavalier. :p

[Gun Freak]

More like tow it on a utility trailer

[Lockednloaded]

How did you drill into the "flat part" of the bell reducer? Wouldn't drilling there put a hole in the tube that attaches to the funnel? I've seen ones on YouTube where they drill into the bell of the bell reducer, but your way looks like it makes them easier to mount

[Gun Freak]

Funny you should ask... On one of the horns I drilled too far in (hand drill instead of drill press) and went the through that tube. But the bushings I used have the recessed back that allowed me to drill into 3 layers instead of 1. And yeah it made mounting them very easy!