Air Horns

[fitz_vt]

Hey guys and gals, i just brought a dual air horn, for my commodore vt and i am wondering if i have to wire it through the relay provided or is it just plug in and work? (on the secondary horn on the other side of the car not the drivers side

i have all the air lines in place i just have to get information on the wiring....
thanks in advance

[accentstencil]

I reckon it should work no problem just plugging it into other horn plug.

[azzaVT]

Acording to my Gregory's, yes.

Just dont exceed your fuse #25 rating or the rating of the relay fitted. You'd probably disconnect your std horn anyway, but that will give you a bit more current to drive the blower better.

If the blower is a real current drain, put in a second relay just to drive it... straight off the battery (fused, of course).

[fitz_vt]

well its a 30 amp 12 volt compresser

[accentstencil]

well its a 30 amp 12 volt compresser

I didn't think it would be that many amps. Perhaps it's not wise to use the other horn plug.

[fitz_vt]

I didn't think it would be that many amps. Perhaps it's not wise to use the other horn plug.

well, it says on the relay thats its a DC12V 30/40 A and that i the link from the battery should be 30amps
Yes i dont want the hello how are you horn its got now.... i wanna WHAT THE ...... it should sound like a mack truck....

[azzaVT]

the std horn fuse is rated at 15A... so don't expect that circuit to carry more than 80% of that for too long without getting awfully hot... ya gonna havta make your own circuit to drive that monster!

Get a good quality relay... ya don't want that sucker (ahem, blower) getting stuck on... and mount the relay as close to the blower as ya can. Use heavy cable to go to earth and to the battery... fuse it at the battery with a 30A fuse.

[fitz_vt]

the std horn fuse is rated at 15A... so don't expect that circuit to carry more than 80% of that for too long without getting awfully hot... ya gonna havta make your own circuit to drive that monster!

Get a good quality relay... ya don't want that sucker (ahem, blower) getting stuck on... and mount the relay as close to the blower as ya can. Use heavy cable to go to earth and to the battery... fuse it at the battery with a 30A fuse.

yeah i have got a circuit diagram for it, and plan on wiring it up today( got my sisters car so i can get parts lol) but i have the relay that came with it looks pretty good and is rated for it.as for the 30 amp fuse does anyone know where i can get the fuse connecters

[fitz_vt]

i have wired it up...... but it doesn't work.... it has its own fuse and relay.

[BOGANV8]

How did you trigger the relay..


Did youuse the 2 wires going to your old horn to trigger the new relay..

[fitz_vt]

yes, i used the + on the relay and the - on the compressor?

[| evaN |]

this diagram should explain how you should wire up the air horns.

Relay
85 - ground
86 - +ve from the old horn
30 - fused 12v straight from the battery
87 - +ve on air compressor

and just connect the other pin for the air compressor to ground

[fitz_vt]

thanks very much it is a much larger diagram then i have mine is very small

[fitz_vt]

awesome peoples i got it all wired up..... YAY
i now have loud and working airhorns.

[Chooksie]

Hey mate, good to hear you got 'em working. I am currently in the process of fitting air horns, well a single air horn in my VT, And I was just wondering what type of compressor and resevoir tank you have used? email me at thespike05@hotmail.com

[mrVT]

i had five air horns the dukes of hasard ones and when i connected it to the existing relay and wiring for some reason was sounding slow iam asuming there wasnt enough power???? anyway i took em off b4 i got a canary from cops cause i think 2 is the limit u can have???

[| evaN |]

pretty sure its not about how many horns you have but the tone that it makes. you can have as many horns as you like as long as its a single tone and not any of those musical tones