Ya, I know. I'm gonna try to get some peterbuilt horns used. I'm just looking at that system to use w/ them. I never really realized the benefits of having onboard air. Fill your own tires up, airbags, horns, nail guns, etc.
Yeah, I was thinking 1/4" was too small but I was wrong... 1/4'' is whats on my truck (I couldnt look because its in a different city due to high fuel prices im driving a car). But the 1/4 will work fine. As the others said, bigger line means more volume which means more sound but big rigs only use 1/4 going to their horns.
Last thing ill leave you with... Be forewarned about hornblasters air line. It IS NOT the same stuff I was talking about. When I ordered my stuff (compressor, valve, pressure switch) I decided "Hey, ill get the line from them cause im getting everything else from them" but that was a bad idea.
I use the compression fittings the trucks use as well and when I used their line everything leaked. They have the newer push in design that may be better but I dont know for sure. Their line is a bit cheaper than what I expected. Try it cause youre getting it with the kit anyhow. Just a heads up.
It sounds negative but I really do like hornblasters. If I could change some things with them I definitely would but they are good people and have a pretty good, reliable company.
One last question, what horns sound better(deeper)? The rectangular opening with the plate in front or the round open opening? The only ones I see around here are the rectangular ones, do they sound the best?
Actually that one is not too badly priced, as I do not think it is a Grover, but is a knock-off brand. If you look at the bottom of it, it has the solenoid on it already. A true horn from a semi would not have that. The key for the tones on a semi horn is in the diaphragm and the size/length of the trumpet. A bigger diaphragm with a longer/bigger trumpet opening will have a lower tone, at the same time it will also need more air to get the same sound levels (not tone) as one with a smaller/shorter trumpet.
So you are saying the one I posted would sound similar to a big rig or higher toned? I emailed the guy and he said its a reproduction horn and he got a bunch at a auction. He said they were made a year ago and were never really on a truck but that they sounded good and worked well. Stay away???