SHAGGYDOG

alcazar, thanks for that, what about the wiring etc? any clues/pointers/advice please - i haven't got much of a clue when comes to that side, altho the kit comes with destructions (yet to receive the horns)!

cheers

[Edited by SHAGGYDOG - 11/7/2003 7:21:31 PM]

SHAGGYDOG

Looking to fit triple air horns to a P1, anyone done this please, advice etc would be appreciated.

Thanks

alcazar

iTrader: (2)

Got twin air horns on my '98 UK car............not difficult to fit, but certainly not easy to find a space for.and I bet triples would be even worse!

Mine are all slung onto a home made bracket, made from aluminium 25 mm angle, about 6" long, and held on by the battery clamp.

Alcazar

alcazar

iTrader: (2)

Dead easy.....as I say, finding a space for 'em is the hardest.

You'll get a relay with the kit.
Remove the feed wire from the existing horn, and fit it to relay terminal 85, then run a wire from relay terminal 86 to a suitable earth.
If the relay is fused, run a thicker cable from battery +ve to relay terminal 30, and do this via an inline fuse if the relay doesn't have a fuse on it.

Take a further length of thicker cable from relay terminal 87 to the air horn compressor, and another length from the other airhorn compressor terminal, to a suitable earth.

After that it's just a case of connecting the pipes from compressor to the 3-way piece, and from that to each horn, bolt it all in place, and away you go.

Alcazar

SHAGGYDOG

cheers m8, much appreciated

big500

Got my twins and compressor behind the grill but was a tight squeeze



Steve

SHAGGYDOG

Alcazar

The wire that you say goes to the battery positive - can it go to a 'switched' live instead or doesn't it really matter - my only concern is whether it will drain the battery by going direct to the battery (so presumably it is on all the time?) rather than via a switch - or does the compressor only use power when the horn is pressed?

If a switched live is better any idea where the closest one might be to connect into? There seems to be some kind of unused wiring terminal near the nearside lights?

Thanks for your help

[Edited by SHAGGYDOG - 11/13/2003 4:39:06 PM]

[Edited by SHAGGYDOG - 11/13/2003 4:39:47 PM]

Chris79

I've fitted twins too near the battery - sounded a bit odd, then found an additional OEM horn behind the grill!

Chris

j-k

got twins on my sti8 ... better than the pants original horn.

Dont fit them in front of the radiator..if you should happen to have a light shunt you could put them thru your rad!!

alcazar

iTrader: (2)

Shaggydog: that's what the relay is for mate.
When you press the horn , it powers up the relay, which switches on the compressor.

You have to have the relay, as the compressor uses far more current than the piddling little horn switch can handle, so it would burn out without the relay.
Alcazar

big500

On mine the horn switch operates a 10A relay in the main fuse box I presume its standard ?

Steve

SHAGGYDOG

aha, i understand now, so it will only use power when required and not drain the battery.

thanks for clarifying it

good point j-k, i intended to keep the thing on the engine side of the rad anway.

sc00by57

i fitted my twin horns in the inner wing! one either side preety much behind the fog lights! great effect having them instead of the standard c**p!
steve

SHAGGYDOG

sorry guys another question, the oem horn has a green and a black wire, which one do i disconnect and connect to the relay terminal 85, black or green?

also the 2nd oem horn behind teh grill can i just simply disconnect the wires from that to isolate it?

cheers

[Edited by SHAGGYDOG - 11/15/2003 3:52:32 PM]

SHAGGYDOG

anybody please?

thanks

alcazar

iTrader: (2)

Yes, you can just disconnect it, and tape up the wire.

As regards the green/black wires:

Connect a wire from relay terminal 86 to battery -ve.
get someone to sound the horn, and keep it pressed, with the OE horns disconnected:
Touch the green wire to relay terminal 85: if it clicks, this is the one to use.
If it doesn't click, try black wire, if THAT one makes it click, that's the one.
You CAN'T do any harm using this method.:

Alcazar

SHAGGYDOG

task completed, lovely job, BLHAAAT, thanks again