Interior/Exterior Air Horn - an exercise in taking a mod to the extreme!
Yep. Cool stuff, but they aren't concerned about size or shape... made more for a big truck with lots of under hood / under chassis room. Adding a mod of this size to the MINI presents it's own unique challenges! :D
I've never really thought about weight. The horns aren't that heavy and the CO2 tank is a 9oz model... add a bit of other hardware and stuff and I'd say it is all still under 10lbs.
I'd be better off with a 'Nutrisystem' mod (trimming lbs from my fat ****) rather than worring about weight reduction mods, so it has never really been an issue for me. Anyway, adding a bit of weight to the low, far back end of the MCS is probably a good thing. Helps make the balance of the car more centered.
I'd be better off with a 'Nutrisystem' mod (trimming lbs from my fat ****) rather than worring about weight reduction mods, so it has never really been an issue for me. Anyway, adding a bit of weight to the low, far back end of the MCS is probably a good thing. Helps make the balance of the car more centered.
With room under the rear of the car on both the left and right side of the muffler, I've always figured that I had sufficient space for a tank and compressor. agranger, are you going to use air? If so, please do share...
What would you say is the total weight of the CO2 horn system, and about how much heavier would the tank/compressor option be?
Pics of my setup. I have 2 manifolds each with 4 valves. Ignore those as you'd only need 1 valve for a horn.
Prior to fitting the water trap and compressor leader hose.



Nice job RSD. Thanks for the information. One of the sets-up on Hornblaster would weigh just shy of 20 lbs. And as someone said earlier, adding weight in the back is a good thing on the MINI. I'd also add that weight down low is better as well...
I have no rear seats and lost tons of weight with the straight exhaust and smaller battery... so I don't mind adding some weight back there.
I have no rear seats and lost tons of weight with the straight exhaust and smaller battery... so I don't mind adding some weight back there.
If you have the smaller battery going and a very trim battery mounting, you might even be able to squeeze the compressor into the battery compartment too! That would keep it clean and dry (unless your sunroof drains block up), which is always a good thing.
My CO2 setup is small enough to get the box (CO2 canister and regulator), the 4 horns and the valve setup all into the space where the driver's side muffler used to be. If I go with air, I'll have to put the compressor and tank in place of the CO2 box and run a snorkle for one of the better dust/moisture-proof compressor into the passenger cabin so I don't pull in dirty/wet air.
Stance: That's a beautiful rig in the spare-tire well. Very nice work. It needs some custom paint! :D
My CO2 setup is small enough to get the box (CO2 canister and regulator), the 4 horns and the valve setup all into the space where the driver's side muffler used to be. If I go with air, I'll have to put the compressor and tank in place of the CO2 box and run a snorkle for one of the better dust/moisture-proof compressor into the passenger cabin so I don't pull in dirty/wet air.
Stance: That's a beautiful rig in the spare-tire well. Very nice work. It needs some custom paint! :D
If you have the smaller battery going and a very trim battery mounting, you might even be able to squeeze the compressor into the battery compartment too! That would keep it clean and dry (unless your sunroof drains block up), which is always a good thing.
My CO2 setup is small enough to get the box (CO2 canister and regulator), the 4 horns and the valve setup all into the space where the driver's side muffler used to be. If I go with air, I'll have to put the compressor and tank in place of the CO2 box and run a snorkle for one of the better dust/moisture-proof compressor into the passenger cabin so I don't pull in dirty/wet air.
Stance: That's a beautiful rig in the spare-tire well. Very nice work. It needs some custom paint! :D
My CO2 setup is small enough to get the box (CO2 canister and regulator), the 4 horns and the valve setup all into the space where the driver's side muffler used to be. If I go with air, I'll have to put the compressor and tank in place of the CO2 box and run a snorkle for one of the better dust/moisture-proof compressor into the passenger cabin so I don't pull in dirty/wet air.
Stance: That's a beautiful rig in the spare-tire well. Very nice work. It needs some custom paint! :D

The exhaust shielding is gone, leaving even more space.... Where did you source your horns? Thanks.
So I was doing some research because the thought of doing this kept crossing my mind, however I didnt like the idea of spending $80 on a regulator. So after a little digging I have found that most pressurized gas cylinders used a standardized thread called CGA 320. As a consequence you can easily adapt an inexpensive $40 welding style regulator to a paintball tank.
As an example:
http://www.chicompany.net/index.php?...roducts_id=172
As an example:
http://www.chicompany.net/index.php?...roducts_id=172
Last edited by Some Guy; Feb 12, 2009 at 10:29 PM.
Glad you liked 'em!
Update: I'm still only getting about 2 weeks per tank... I've got a slow leak in there somewhere.
One of these years I may put in a small compressor and tank and bail on the CO2. I still think that this is the right solution, but I think that the leak is in the regulator somewhere and I can't fix it. I don't think that paintball equipment is made for long-term use like this... maybe the adaptor above would be a solution.
Update: I'm still only getting about 2 weeks per tank... I've got a slow leak in there somewhere.
One of these years I may put in a small compressor and tank and bail on the CO2. I still think that this is the right solution, but I think that the leak is in the regulator somewhere and I can't fix it. I don't think that paintball equipment is made for long-term use like this... maybe the adaptor above would be a solution.
I was thinking of putting something like this on mine. It's a tad more aggressive. I'm tired of not getting any respect.
Love your setup, can you put that on mine? I am not good at this kind of stuff.
UPDATE: Never mind, I found a great one for my MINI:
http://www.youtube.com/watch?v=zgQGe...eature=related
Love your setup, can you put that on mine? I am not good at this kind of stuff.
UPDATE: Never mind, I found a great one for my MINI:
http://www.youtube.com/watch?v=zgQGe...eature=related
Last edited by MichaelSF; Apr 15, 2009 at 09:33 AM.
That'll be our little secret
I hit the horn today on the way to work, truck cut me off in traffic... everyone stops to look around and a few people were pointing their fingers at the truck that cut me off... gotta figure it came from a lifted truck or semi, or even an SUV before you conclude on a MINI
I hit the horn today on the way to work, truck cut me off in traffic... everyone stops to look around and a few people were pointing their fingers at the truck that cut me off... gotta figure it came from a lifted truck or semi, or even an SUV before you conclude on a MINI
Ok... so my remote control only had a range of 20-30 feet... because it had a short little 12" antenna wire, most of which was in the battery box. So I extended that sucker by about 6 feet and ran it up the side and across the bottom of my rear shelf... now I get at least 50 yards of range - might get more, but I haven't tested any more than that...
Ohhhh make sure you shoot it off tomorrow! I will be there tomorrow morning and I definitely wana hear that thing in person
Mine doesn't seem quite as stupidly loud as it was when new... may not be blowing on all four diaphragms.. or maybe I just don't have the pressure as high... but it's still loud enough to be fun.





