Started at 120psi.
Sounds nice dude! I got my 5/8" hooked up today 
http://www.trainhornforums.com/showthread.php?t=3590&page=2 Post 17
Nothing blows like a Nathan… haha
That’s a couple good blasts. So is that tank about 5 gallons?
Thanks. It is 10 gallon, According to measurements I found on the Internet.
It is an aluminum tank off of a Peterbilt truck that was in the wreckers. I am going to strip all the old paint off of it and either polish or paint it. The guy that was with me in the video told me his ears were still ringing later on in the evening.
lol sounds nice
Thanks Bryan.
it looks like irrigation pipe… is it correct? if so it’s a great idea and kinda cheap…
Now you need to drill them out and let them scream!
I have read that other people have drilled them out, but theres no way I would try that myself, lol. I know I could probably do it but I wouldn’t try. lol
^ You would after you heard mine in person, I promise you that.
Lol. Your probably right. Do you have any videos?
There is a video in my sig, but that was before the mod. You really won’t be able to tell how loud it really is in a youtube video.
No I know, I can’t tell how loud they are on video. I tll everyone that about mine.
ha ha