Compressor & Train horns

[7.3'00]

I've been looking to put train horns on my truck for s***s and gigs. A friend of mine was telling me how you can run the compressor off of the alternator. If this can be done how so?

Also any of you guys out there running train horns? Where do you have the horns and the compressor set up, or where would be a good place to put this? I was thinking I could put the compressor in my tool box, but the horns? I want them to where they can be seen.

Thanks for any info!

[jesilvas]

As in an electric compressor? Or belt driven. Plenty of good electric compressor setups out there that will run the horns, air tools, and anything else that uses air.
People have tossed around the idea of a mechanically driven compressor but none have really come out to anything.

[azkcr]

Hmmmmm..... Curious as to what the question is.
Mechanically would be sweet

[jesilvas]

idk where the thread is but the idea was to use the optional, lower alternator bracket and mount an air pump on it. Not sure why that died. I'm gonna look for it again.
It wouldn't be terribly hard.
Lower bracket, air pump, dual alternator belt. The pump would have to have an elec clutch on it that shuts off once a certain pressure is reached with a press regulator. Seems easy enough.
I think the idea was to use an AC compressor too but that doesn't seem too good.

[go_n_low]

They do make engine driven compressors. Most of them are universal and custom bracketry would be needed to mount it. I had one on my old S10 lowrider for the air suspension. Way overkill for a train horn set up. There is no turning it on or off, if the engine is running its compressing air. You have to use a bleed off valve so you don't over pressurize. Those kind of whistle when they release. It gets very annoying. I hated it on my old truck. An electric compressor is the way to go.

[azkcr]

Ya. It'd be cool to have mechanic and have the big-rig PSSSSHHHHHH every few minutes.

But it'd get annoying. And since you only use train horns everynow and then (unless you're a Dodge pilot), electric is definitely the way to go

[jesilvas]

Product : Extreme Outback
On board air mounting plate for a York compressor?
All I found. Oh ok. Wasn't sure if it was constant or not.

[mxfever090]

Here is a link from an install

My OBA and train horn instal

Here is mine - I don't have train horns yet.....

7.3 mod pics

And when I do I will be getting these

46115 Chrome Train Horn, Chrome Horns, Train Horns

[F3507.3POWERSTROKE>cumins]

i have a 4 trumpet plastic setup and its loud as ****. the stats on them said they are 171db . itll scare someone off the road easily.. im actually looking for a compressor to though, right now i have the tank just sittin in my bed and ziptied to the corner.. lol. but im eventually gunna mount it under the truck, just havnt decided where. ive been askin around and i heard that viair compressors are the best choice. but i have my horns mounted where the spare tire usually is