Well on trainhornforums.com they say that running 5/8" line is way better than 1/2" so I figure I will go ahead and go that route because it will give more air to the K5s and is only gonna cost 70 or so bucks for the upgrade, which is 6 push to connect's and the air line. I am also going to put a regulator between the tank and valve and run my horns between 120-150 psi. with the regulator I can pick what psi sounds best and have 200 psi siting on stand by in the tank. Should buy me a few extra seconds of honk!
I taked to HB and real train horns and I was told I didnt need 5/8" line so I will be holding off on that
Just ordered my regulator and mounting bracket from McMaster-carr. The cool thing about that place is Tennessee is a state that they do ups one day for around 6 bucks! so I will have it tomorrow. everything should me in by Tuesday next week. I should have my digital air gauge in today and I got a roush air vent gauge pod on the way to hold the gauge. May half to do some work to get it to hold the gauge but it will work! here is a link to it.... ROUSH Performance: Vent Gauge Pod
Thanks buddy! I am probably going to mount my horns at a 20 deg. slant down towards the front of the truck, the vibrations will bounce off the ground and carry farther out I think. not sure yet.