Originally Posted by Broken Halo

After several days of planning, measuring, making templates for aluminum mounting plates, plumbing, and wiring, I FINALLY finished installing my air horns. No more 'sick cow' under the hood. This thing sounds like a Freightliner coming up on you! Here's the web address for the Wolo Challenger kit. It includes everything you'll need...air tank compressor, hose, wiring, solenoid valve, and, as an extra bonus, a 20ft. inflater hose, so you can fill tires from the on-board compressor. Wolo model: Challenger 810 EV.
WOLO TRUCK AIR HORNS AND HIGH PRESSOR ON-BOARD AIR SYSTEMS

Originally Posted by wfturner

Is there a delay when you hit the horn button, until the horn sounds ??
I had air horns years ago and the delay was caused by the compressor getting up to pressure then sounding the air horn. It wasn't a long delay, just instantaneous.
Trains and big rigs have air pressure all the time and don't have the delay
Thanks and let me know

Originally Posted by Broken Halo

Zero delay....that's the purpose of the air storage tank. The pressure is already stored. If running a compressor alone without a tank, then there would be a slight delay until pressure was reached, but, it would still not operate efficiently because even though you'd have the pressure, you would not have the volume, and for the horns to work effectively you need both.

Originally Posted by Hummer Guy

x2. I have mine setup on my normal horn trigger, and the stock horn still fires off, but you can't hear it underneath the air horns. There is maybe an 8th of a second delay, but I could only tell when I was editing video and was scrubbing frame to frame.

Originally Posted by Broken Halo

Plus, this way I've still got the stock horn for the 'friendly little reminder' for someone not paying attention to the light turning green, and the air horns for the a$$hole that cuts me off!