So here is the deal. I had a k3la and it sounded great. Then I drilled them out to a 6mm orifice and they sounded bad freaking ace! Now I have a k5ha and it sounds great, but I’m not feeling the bad freaking ace part. They are a little quieter and more mellow than the drilled k3’s. I didn’t expect it to be any louder, but I still wanted that major slap in face punch the k3’s had.
So here is the plan for this weekend. I have a 3/4" valve with 1/2" DOT line (3/8" I.D.). I am going to throw that in the trash and run about a foot and a half of 5/8" I.D. hose with barb fittings.
I just bought some 5/8 od and i’m hoping it will make a diffrence in sound.
What do you mean drilled them out?
Could I do that to my k5hl and there be a diffrence?
Absolutely. On the horn base there is an orifice that lets the air in. This orifice is drilled to different dimensions depending on what the customer ordered. The standard size is 4mm. The largest you can go with out any squealing is 8mm (so I was told). I went in the middle and drilled a 6mm orifice. And yes, it made a difference. Just keep in mind that it will inquire more volume of air. I think this is where I am not getting what I want out of mine. All of my 5 bells are drilled and I’m only supplying them with a 3/8" I.D. air line. With the 3/4" valve and 5/8" I.D. line I hope to achieve a much greater volume of air being supplied to the “beast”.
What did you run before that? Solenoid or manual valve, and how many feet of line?
when i put my k3 in, i rand all new 1/2" OD line and it sounded ok… but the shockers were louder… so then i upgraded to the 5/8" OD and now the k3 blows the shockers away, lol
I have my tanks / compressor in the bed… I have the line running from bed up under along frame and goes into cab into the GW “clone” valve… then runs out cab along frame , into engine bay and up to grill where k3 is…
So maybe 10-12 feet from bed to cab , and approx 15 feet or so from cab to grill… maybe a little more with all the turns… There is no restriction now tho like i had with the 1/2"od Was a pricey learning experience, lol
Well… That done the trick! Now it sounds like a modified K5! It may even be a little louder than my k3, but not complete on that verdict yet. An excellent $11 upgrade.
Dang this stuff is almost 1 1/4" O.D.
Gotta grow a set and take a hole saw to my bed this weekend…lol
I’ll probably do 1 5/8" and try to make a grommet.
Ok guys, on the sides of your high-rise manifold there are 2 ports right? Why not run 2 1/2" O.D. and 2 1/2" valves and airlines to those? Granted it isn’t 5/8" I.D. but it is still a ton of air… tho it would require an extra port from your tank…
You don’t need another port, just another manifold or a T three fitting to divide the air hose into three. Eliminate the need for extra valves. I thought of that but mine are plenty loud for me.
I almost went that direction, but then I got smart and decided to go with the 5/8" ID. I already had the 3/4" valve so why not right? Not only that, but then you have to worry about 2 valves instead of just one big. I find it easier this way.
I’m not using a Nathan manifold.
And multiple lines would require multiple regulators (if using a regulator).
I may get a 3/4" regulator since Lowes has the proper hose barb.
And if I can EVER get my custom tank I’m going to have a 3/4" port.
