Advanced Engineering Tech For the more hardcore LS1TECH residents

Electrical question about multiple horns

Thread Tools
 
Search this Thread
 
Old Apr 15, 2011 | 10:22 PM
  #1  
Shooter_Jay's Avatar
Thread Starter
TECH Fanatic
 
Joined: Oct 2003
Posts: 1,401
Likes: 0
From: MA
Default Electrical question about multiple horns

Let's say my friend is disappointed in the sound level of the horn in his z28 to get the attention of left lane loiterers. Let's say he has a couple of parts cars around to strip horns to wire in addition to his camaro horn, likely in series or maybe in parallel.

I'm thinking maybe I'm best off wiring my own whole new circuit with heavier wire and run three horns in parallel all to a new button installed in my interior? I'm no EE, any advice for me?

Hmm, maybe I'll hook each up separately with it's own button and then I can push them all at once or musically to my content.

Maybe there is a better category for this question...

Last edited by Shooter_Jay; Apr 15, 2011 at 11:50 PM.
Reply
Old Apr 17, 2011 | 06:18 PM
  #2  
Krom's Avatar
TECH Apprentice
 
Joined: Sep 2006
Posts: 328
Likes: 3
Default

use the stock horn button to run a relay wire the relay to power the horns from the battery
Reply
Old Apr 18, 2011 | 06:02 PM
  #3  
jimmyblue's Avatar
Moderator
iTrader: (11)
 
Joined: Mar 2002
Posts: 12,604
Likes: 7
From: East Central Florida
Default

Google "train horn". There's people who live for that
stuff.
Reply
Old Apr 18, 2011 | 06:49 PM
  #4  
Shooter_Jay's Avatar
Thread Starter
TECH Fanatic
 
Joined: Oct 2003
Posts: 1,401
Likes: 0
From: MA
Default

yeah I've seen that, not what I'm looking for, just something a bit more noticable than my barely audible horn.
Reply
Old Apr 19, 2011 | 10:15 AM
  #5  
jimmyblue's Avatar
Moderator
iTrader: (11)
 
Joined: Mar 2002
Posts: 12,604
Likes: 7
From: East Central Florida
Default

I've saved every horn from every '60s and '70s beater
I ever junked. Full size used to have decent horns.
And you can tweak the freq some with the screw.
Get a pair of same-tone ones and tune them to a
nice epilepsy-inducing 8Hz beat note.
Reply
Old Apr 25, 2011 | 02:50 PM
  #6  
1 FMF's Avatar
TECH Fanatic
iTrader: (1)
 
Joined: Mar 2002
Posts: 1,861
Likes: 2
From: CT
Default

you can't connect them electrically in series.
you need to connect them in parallel so they all see 12 volts, because they require 12 volts to operate.

simplest thing to do is remove the + wire that goes into your current horn and put it into the control side of a 20A relay. The other side of the control goes to ground. Then use 14ga or 12ga wire from fuse box bus bar or battery + to one side of the switching side of relay, other side branches out (in parallel) and goes to each + terminal for each horn.
You can pick up a 20A automotive relay from radioshack for $6.
And you should put a 20a fuse inline between battery + or fuse box and the relay.
Reply




All times are GMT -5. The time now is 05:48 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE