Installing Air Horn w/ Compressor

[d10shun]

I bought a Grover air horn and an air compressor is on its way. Can I just turn on/off the compressor to sound the horn or will this cause sound occilation from the pumping air coming out of the compressor? Do I have to have a separate air tank/solenoid for this? I really want to keep it simple.
Ben

 

[XJ_MAC]

You should be able to ask this question at a Semi truck parts business. I think you'd have a slow sound build up using a compressor directly. By storing the air, the horn will be strong from the minute you press the button. Those places also sell the switch and in-line actuator/solenoid for such an application.

I bought my switch, solenoid and brake air tank for my air horn at one.

Oh yeah, consider a pressure gauge and/or pressure releif valve on the tank or pressure actuated compressor shut off for safety.

 

[blackdogxj]

If i was you id just put a tank on it (depending on how much air u want) id have a pressure releaf and a pressure guage. you will get awesome sounding air horns out of a tank instead of just running the air off the compressor. it will take to long for the air to build up to get a good sounding horn with out a tank....also just think u can run air lines off the tank for air tools/tire air/air lockers.

Brad

 

[ZmOz]

I know the $12 harbor freight horns can run directly off the compressor...seems unlikely that a higher quality horn wouldn't do the same...

 

[d10shun]

Yeah, I tried to run the horn off the compressor and nothing happened. The grover horn needs 50-60 psi to sound. I purchased a small air tank and a solenoid. I think I will run an in-line air gauge for the cab. Will this extra length (5ft) of hose affect pressure?

Also, did you guys run the solenoid with the horn button on the steering wheel? If so, what wires did you tap?