I always have fun when this subject comes up. In our state I believe the law indicates the horn must be a certain loudness. I think I meet the criteria.
The comment about the youtube children... you can say that pretty much about anything out there.
I use my horn very carefully. Always look around for anyone close by. The worst thing i could do is hit it when in traffic next to someone in the adjacent lane with their window down. I avoid using it in heavy traffic.
I originally purchased this set of Airchime K3LA's way back in 2002. I got on the web and located a guy in Missouri that managed a rail yard locomotive rebuilding center. He said they took the horns off every engine and put knew ones on regardless. He had piles of them. Got my used horn for $300.
I originally installed it in the Duramax I bought in 2001. When I traded the Dmax for my current Dodge I moved it over to this one. Had the horn now for 10 years. Just love it.
Then I had to figure out the air supply. Temporarily I picked up a nitrogen cylinder. I wasn't interested in installing a 50amp air pump at the time with all of the peripherals. The platform that the tank is on I originall fabricated for a large propane tank used in the Dmax for propane injection.
Then the valve. Solenoid valves are on/off. You can't get the true modulated sound from them. Other choices were a standard lever ball valve like you use in house plumbing or a real "Graham White" locomotive valve. I picked that one.
The nice thing about my setup is there are no electronics. Nitrogen goes from the regulated tank to the valve and directly to the horn.
I need to exchange the tank about 2 or 3 times a year at $32 a pop. Takes a lot of room in the bed but I don't use the bed that much that it has been a major issue. Full on with a fresh tank yields about 3 mins of eardrum breaking blast. That's actually months of use.
Nothing like that sound when going through an underpass or along side a mountain and getting the echo.
These picture were taken way back in 04 when I got the truck. It looks a lot different under there now... Bilstein shocks, airbags, nicer tires.
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