Post by
Crunkrich »
https://forums.nicoclub.com/crunkrich-u36411.html
Mon Apr 12, 2010 7:21 pm
I've been there and done that, plan on doing it again soon
The first system I used was a 110v AC compressor, hooked up to a big power inverter. It worked good, but was loud as hell and I'm sure did some work on the alternator.
My second system, I went all out... train horns, powerful compressor, 3 gallon tank, 2-way horn switch.
The powerful compressor I'm talking about is your A/C compressor. If you have it and are willing to sacrifice your air conditioning, this is the way to go. An A/C compressor can kick out on average 7-10 CFM at 140ish psi. That's a lot of power. You don't even really need a tank.
Drain freon from A/C, and here's the layout of the system:
Air filter > tool oiler > A/C compressor inlet > water / oil separator > air tank > 12v air solenoid > train horns. Make SURE you have a safety release valve installed on the tank or the line after the compressor. The tool oiler replaces the freon, which seconds as a lubricant for your compressor, and the oil/water separator keeps any condensed air (water) from getting into your tank, solenoid and horns.
I'm not going to go into detail because there websites that already have the information available, just search "on board air" in google.
I plan on taking this system further with my jeep, not only having the horns but also NPT hookups on the front and rear bumper for air tool use or emergency fill-ups. I have never used A/C anyways, I'm a windows-open kind of guy, so it doesn't bother me.
And be responsible with the horns, mine are loud enough to hear 4+ miles away. We tested it. A sudden honk can cause panic on other drivers. The best use is college campuses with slooooow traffic and lotsa people on the sidewalk
I went through the stage of wanting to scare everybody and not thinking about the accidents it could cause or consequences, please don't be stupid with it. It's fun, but it could get back real quick. I rarely hit mine, only when its the perfect opportunity to scare the living daylights out of people I know, and that know I have the horns, but don't see it coming
Modified by Crunkrich at 2:28 AM 4/13/2010