Diesel Nut said:
RJOL-
So... ... . . . Where did you get it? How does it sound? How much? I need info! I think we all need info!
Start by searching on eBay. You will need 1 to 2 air horns. Get the same type in two different lengths so you will get dual tones. Look for ones that are 18-24" long (the longer ones have deeper tones).
You will need an air tank. If you're good at modifying one, you can pick up one from places like Harbor Freight (
http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=41712). If you go this route you will have to do some minor mods to it. I welded on a fitting for a drain, and one for a fitting that I could attach an air hose to, for filling tires, ect. If you aren't up to this, you can find small tanks on the internet that are set up for just air horns.
You will need an air pump. I've used Thomas pumps on my last two CTD's and they work very well. I've bought my last two from this seller on eBay:
http://cgi.ebay.com/12V-DC-AIR-COMP...ryZ42247QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
You will need a 12V air solenoid. This is used to activate the air pressure to the horns. You can sometimes find these on eBay, or other places on the internet. Don't buy a cheap one. You need one that will pass as much unrestricted air as possible.
You will need a air pressure sensor/solenoid. This is used to regulate the pressure to the tank and your looking for one that comes on at about 70-90psi and turns off at about 120psi (make sure you don't overpressure the tank you use).
From there is is just a matter of mounting the horns, mounting the tank, mounting the pump and solenoids, running the air lines and electrical. You can see some of this detail on my rig pictures.
The cost of this project depends on how much you can do yourself, or have to buy ready made. I would guess that it will run you from $150 to $250 for all the parts.
When your done, you will have an extremely loud air horn system that is just like the ones on the big rigs. Have fun...
