Extra horn

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Extra horn

jarek_rugby
Hello,
I am adding extra horn (fanfare) with air pump.
From which place should i take power (+) ?
It will be extra horn working on separate switch.
Chicks dig us 'cause we play RUGBY
F 150 1986 302 ci EFI
Pontiac Firebird 400 ci 1973
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Re: Extra horn

Gary Lewis
Administrator
Jarek - Does it play any special tunes?  

Seriously though, do you know how much current it pulls?  With a bit of searching I found that some have a max current draw of 20 amps.  So, if yours is the same you'll want to fuse for a bit more, like 25 amps.

The next question is if you want the horn to be able to honk with the key off?  If so, you need a source that is hot at all times.  If not, a keyed source is needed.

If you want it to honk at any time then you could get an accessory fuse holder and wire it to the battery.  But if you want it to be keyed that's another issue since there is only one fused source of more then 20 amps, and that's your heater/Air Conditioning fuse and you don't want to use that.

Anyway, let's see which way you want to go, meaning honk at any time or honk with the key on, before going further.


Gary, AKA "Gary fellow": Profile

Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/ZF5/3.55's, D60 w/Ox locker & 10.25 Sterling/Trutrac, Blue Top & Borgeson, & EEC-V MAF/SEFI

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Re: Extra horn

jarek_rugby
Gary,
I need it only when engine is working or as You wrote i need keyed source.
It is one tone, 12  V.
IMG_20190315_193124.jpg
Chicks dig us 'cause we play RUGBY
F 150 1986 302 ci EFI
Pontiac Firebird 400 ci 1973
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Re: Extra horn

Gary Lewis
Administrator
Jarek - First, instructions on posting pictures are here: Bullnose Forum/FAQ's.  But I've copied the pic in for you - this time.  

And, looking at that pic I see that it includes a relay.  So, you'll need a fuse and you can wire it this way:

EDIT: You could get the switched power from the radio circuit.  It is shown here, but is yellow/black.





Gary, AKA "Gary fellow": Profile

Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/ZF5/3.55's, D60 w/Ox locker & 10.25 Sterling/Trutrac, Blue Top & Borgeson, & EEC-V MAF/SEFI

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Re: Extra horn

jarek_rugby
Gary,
i am no so good in electricity and i need more info.
From which "place" should i take "+" for "fuse and 30" ?
Chicks dig us 'cause we play RUGBY
F 150 1986 302 ci EFI
Pontiac Firebird 400 ci 1973
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Re: Extra horn

Steve83
Banned User
A large ring terminal on the starter relay, going to the fuse holder.  That would be the safest & probably easiest, but not the neatest (because the fuse holder will just dangle in the engine bay).
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Re: Extra horn

jarek_rugby
This place?

Chicks dig us 'cause we play RUGBY
F 150 1986 302 ci EFI
Pontiac Firebird 400 ci 1973
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Re: Extra horn

Gary Lewis
Administrator
Yes, the big terminal on the relay where the battery cable goes.

(See, I told you that the forum is better than emailing me.  Steve responded while I was busy.  
Gary, AKA "Gary fellow": Profile

Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/ZF5/3.55's, D60 w/Ox locker & 10.25 Sterling/Trutrac, Blue Top & Borgeson, & EEC-V MAF/SEFI

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Re: Extra horn

jarek_rugby
Yaa, You are right :)
Is it importent to which end i'll conect wire with fuse?
Chicks dig us 'cause we play RUGBY
F 150 1986 302 ci EFI
Pontiac Firebird 400 ci 1973
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Re: Extra horn

Gary Lewis
Administrator
No, fuses are bi-directional - they don't care which way the current flows.  But, as Steve points out, try to route the wire with the other wires in the area, and possibly zip-tie the wire just before and after the fuse holder to the other wires.

And, clean up the battery cable connection to the starter relay while you are doing it.
Gary, AKA "Gary fellow": Profile

Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/ZF5/3.55's, D60 w/Ox locker & 10.25 Sterling/Trutrac, Blue Top & Borgeson, & EEC-V MAF/SEFI

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Re: Extra horn

jarek_rugby
I will.
So could i plug it here
Chicks dig us 'cause we play RUGBY
F 150 1986 302 ci EFI
Pontiac Firebird 400 ci 1973
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Re: Extra horn

Gary Lewis
Administrator
No.  If you connect it there then the horn will only honk when you are starting the engine.  Hook it to the terminal at the bottom where the positive battery cable connects.

Gary, AKA "Gary fellow": Profile

Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/ZF5/3.55's, D60 w/Ox locker & 10.25 Sterling/Trutrac, Blue Top & Borgeson, & EEC-V MAF/SEFI

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Re: Extra horn

jarek_rugby
Ok. Thx.
Chicks dig us 'cause we play RUGBY
F 150 1986 302 ci EFI
Pontiac Firebird 400 ci 1973
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Re: Extra horn

jarek_rugby
Finaly works :) I did it :) thx for all
Chicks dig us 'cause we play RUGBY
F 150 1986 302 ci EFI
Pontiac Firebird 400 ci 1973
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Re: Extra horn

Gary Lewis
Administrator
Yippee!!!  Well done!  
Gary, AKA "Gary fellow": Profile

Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/ZF5/3.55's, D60 w/Ox locker & 10.25 Sterling/Trutrac, Blue Top & Borgeson, & EEC-V MAF/SEFI