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| Thatch | | Thor |  |  | | Reg. Date | : | 24/06/2009 | | Posts | : | 3,655 | | Location | : | Savannah, GA, United States |
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| | Posted : 25 Apr 2012 - 16:34 Post title : Inspection time - noise levels | | | Well, I had to get my bike re-registered and inspected by the end of the month and this was the last weekday that had any clear weather windows in it so I ran down to at least get rejected in time for my registration to go through (we get a 30 day extension if we fail it). So, I was a bit nervous having switched to the Predator pipes (though putting the cat back on) and only sporting a single mirror, but I had to chance it. Well the guy did a quick once over, checked the tire, had me do the lights and horn then ran off to the office to sign everything and off I go. I was pretty relieved... one that I didn't get crap for having one mirror (fine in the states but I didn't know about there, though the regs do say 'mirror' not 'mirrors') and two, that I didn't get busted for noise. It made me wonder though, perhaps they just weren't checking for noise.....
Then I spoke to Mark. I saw him in the parking lot leaving the same time I was. We both ended up heading to the same place to get our gas cards, I on my bird, him on his Harley Ultra Low Cross Wide Skullboy Tour Master FLHXHPSHIT or what ever the hell it was. I noticed when he fired up that his rig was pretty freakin' loud and thought, well, good thing they don't test for sound here. After we get to the office to get our cards he strikes up a conversation with "What is that you're riding?", I tell him and he gives me a compliment, then proceeds to tell me that he's getting a temp gas card because he failed his inspection, bike is too loud. Seems he hit 108db on a 95db limit. I of course said 'that sucks" and told him where the local HD shop is and that he might be able to drop in some db killers and what not. (he apparently left his stock exhaust back in the states. It now sits in storage as he tries to resolve his issue)
The issue got me thinking though, if that obnoxious bike was 108db and the inspection guy who apparently is fully equipped to check sound levels and fail bikes, paid NO attention to my bike with predators fitted what exactly am I running? I think for my own peace of mind I'm going to go in next week and ask him (now that I have my bike registered for 2 more years) to do a sound check on my bike and tell me where I stand. It was my understanding that the Tbird is rated at like 98db from the factory, which would put it over the 95db limit here. So, does that mean they check it differently at inspection than they do for a factory bike? I know there are rules like mic 10 feet away, can't be closer than 15' to a wall, etc to get the inspection reading, but does anyone know how they read it for a factory bike. I remember the factory tbird and it's quieter than a moped. I was sure I was going to get busted for sound. Hell, every time I go through Switzerland I lube up for ass raping I know that's going to come if they ever stop me... but it seems that the trained ear at the inspection shop didn't even think twice about my bike , so what's the reality here?
Long post mainly to relay my experience, but I wonder, has anyone been nicked for noise on their bird? Anyone had a sound level done on their bird with either the stock or aftermarket pipes? Anyone give a shit period? 
I'd love to think I had nothing to be concerned about because I absolutely love the sound from the predators. Best sounding bird exhaust I have heard, so I'm keepin' em.
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| mjgt | | Thor | |  | | Reg. Date | : | 16/09/2011 | | Posts | : | 2,201 | | Location | : | North Somerset, United Kingdom |
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| | Posted : 25 Apr 2012 - 17:42 Post title : Re: Inspection time - noise levels (Re: Thatch) | | | Thatch, when I take my bikes for their MOT I always take the baffles with me just in case the tester wants them fitted. He always tells me not to bother as he only has to state thay are no louder than standard and as he does'nt have a standard model to compare it with and it sounds reasonable to him he can pass it. It sounds like the HD was taking the piss whereas your bird was "fine".
| Mick . . .  Keep the rubber side down!!
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| TBRider | | Chaac | |  | | Reg. Date | : | 21/10/2011 | | Posts | : | 834 | | Location | : | Foothills, The Mountains, United States |
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| | Posted : 25 Apr 2012 - 18:26 Post title : Re: Inspection time - noise levels (Re: Thatch) | | | Thatch, maybe someone from California will chime in. I understand they're starting to sound test this year upon renewal, at the CHPs Inspection Stations. We don't have a requirement here, so I'm not going to be much help to you.
But If you'd like, I can do a DB Check with the Preds though, I got a DB meter and all I need are their requirement standards. Do you know what they are, so I can repeat their test? It's no big deal, I can just pull out the bike and do the test.
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| shagrat57 | | Set | | | Reg. Date | : | 14/12/2011 | | Posts | : | 393 | | Location | : | Totton, Hampshire, United Kingdom |
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| | Posted : 25 Apr 2012 - 18:30 Post title : Re: Inspection time - noise levels (Re: TBRider) | | | There's a DB meter app for the iPhone. Not sure how accurate it is though, but it might give you an idea.
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| TBRider | | Chaac | | | | Reg. Date | : | 21/10/2011 | | Posts | : | 834 | | Location | : | Foothills, The Mountains, United States |
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| | Posted : 25 Apr 2012 - 18:52 Post title : Re: Inspection time - noise levels (Re: shagrat57) | | | Yea, I tried it but the problems not in the app, it's in the mic on the phone. The farther you get from the noise your measuring, the more DB interferance and distortion. As long as your standing within 3 feet of the sound ,it's ok. Anything over that, not so good. I believe the US standard is a minimum of 15 ft at the rear of the vehicle.
I use an Extech 407764-NIST meter@1.5dB accuracy w/datalogging capability, works really well.
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| | Post edited by TBRider on 25 Apr 2012 - 18:55 |
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| Thatch | | Thor | | | | Reg. Date | : | 24/06/2009 | | Posts | : | 3,655 | | Location | : | Savannah, GA, United States |
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| | Posted : 25 Apr 2012 - 20:51 Post title : Re: Inspection time - noise levels (Re: TBRider) | | | Thanks TB. I found the regs a few month ago. I'll see if I can find them again. Of course you're not running a cat and I am so that's sure to make a difference.
I did find and download an android app DB level, but I too wondered about the accuracy..
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| BlueNose | | Thor | |  | | Reg. Date | : | 29/09/2009 | | Posts | : | 2,478 | | Location | : | United Kingdom |
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| | Posted : 25 Apr 2012 - 21:24 Post title : Re: Inspection time - noise levels (Re: Thatch) | | |
Thatch wrote:
Long post mainly to relay my experience, but I wonder, has anyone been nicked for noise on their bird? Anyone had a sound level done on their bird with either the stock or aftermarket pipes? Anyone give a shit period?
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Beligan police pulled me to one side and I thought here we go. All wanted to do was look at my bike and listen to the pipes. Similar experience in France. The only place it would be wise to give a shit is Stasiland. We'll nip in there just to get Midge nicked
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| Linkdog | | Thor | |  | | Reg. Date | : | 10/02/2011 | | Posts | : | 2,996 | | Location | : | Groveland, FL., United States |
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| | Posted : 25 Apr 2012 - 22:41 Post title : Re: Inspection time - noise levels (Re: BlueNose) | | | So Thatch, when you took your bike in did you keep a cover on it so they could'nt see it till it's "done"
| Never drink from a cow with one udder! 2010 1600 Blue&White ( of course ) Long TORS and HP filter.
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| fab | | Thor | |  | | Reg. Date | : | 12/10/2009 | | Posts | : | 2,515 | | Location | : | wyong, nsw, Australia |
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| | Posted : 26 Apr 2012 - 00:09 Post title : Re: Inspection time - noise levels (Re: Linkdog) | | |
Linkdog wrote:
So Thatch, when you took your bike in did you keep a cover on it so they could'nt see it till it's "done" |
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Remember, soft cocks hang around all life long, hard ones come and go
ahh f**k im deep
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| Eddie | | Set | |  | | Reg. Date | : | 16/07/2010 | | Posts | : | 422 | | Location | : | Melbourne Victoria, Australia |
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| | Posted : 26 Apr 2012 - 00:10 Post title : Re: Inspection time - noise levels (Re: Thatch) | | | My old silver bird with short TORS came in at 94 db
Eddie
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| Thatch | | Thor | | | | Reg. Date | : | 24/06/2009 | | Posts | : | 3,655 | | Location | : | Savannah, GA, United States |
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| | Posted : 26 Apr 2012 - 06:42 Post title : Re: Inspection time - noise levels (Re: Linkdog) | | |
Linkdog wrote:
So Thatch, when you took your bike in did you keep a cover on it so they could'nt see it till it's "done" |
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Alright you smartass ... is this the way it's gonna be then? 
For your information NO I didn't have it covered. But of course he and the folks in the registration office did have to sign a non-disclosure agreement. I mean, that's normal....right? 
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| Thatch | | Thor | | | | Reg. Date | : | 24/06/2009 | | Posts | : | 3,655 | | Location | : | Savannah, GA, United States |
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| | Posted : 26 Apr 2012 - 06:50 Post title : Re: Inspection time - noise levels (Re: Eddie) | | |
Eddie wrote:
My old silver bird with short TORS came in at 94 db
Eddie |
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Hmmm, that's good to know. Was that with or without cat?
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It's actually rather hard to gauge the predators noise level compared to the hogslayers. Because the tone is so deep on the predators it has more 'presence' than the hogslayers but in strict comparison on the video the hogslayers definitely sound louder. It's the feeling of the bass that in person makes them seem possibly louder.
I know I'm close to being OK, but as Ivan and I found out the Swiss aren't exactly known for their compassion and understanding when it comes to traffic stops. (of course 40kph over isn't exactly as one or two db over ..... or is it?  )
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| Linkdog | | Thor | | | | Reg. Date | : | 10/02/2011 | | Posts | : | 2,996 | | Location | : | Groveland, FL., United States |
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| | Posted : 26 Apr 2012 - 10:52 Post title : Re: Inspection time - noise levels (Re: Thatch) | | | Smartass? yea I'll take that afterall asking for photos and I have zero pics. but it's like going through a looong labor waiting for the baby to be seen.
| Never drink from a cow with one udder! 2010 1600 Blue&White ( of course ) Long TORS and HP filter.
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| Thatch | | Thor | | | | Reg. Date | : | 24/06/2009 | | Posts | : | 3,655 | | Location | : | Savannah, GA, United States |
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| | Posted : 26 Apr 2012 - 10:59 Post title : Re: Inspection time - noise levels (Re: Linkdog) | | |
Linkdog wrote:
it's like going through a looong labor waiting for the baby to be seen. |
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Don't I know it.
I make no promises but I'm hoping I'll be 'done' this weekend.... done enough at least.
So, back to noise levels....
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| Eddie | | Set | | | | Reg. Date | : | 16/07/2010 | | Posts | : | 422 | | Location | : | Melbourne Victoria, Australia |
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| | Posted : 26 Apr 2012 - 11:06 Post title : Re: Inspection time - noise levels (Re: Thatch) | | |
Thatch wrote:
Eddie wrote:
My old silver bird with short TORS came in at 94 db
Eddie |
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Hmmm, that's good to know. Was that with or without cat?
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It's actually rather hard to gauge the predators noise level compared to the hogslayers. Because the tone is so deep on the predators it has more 'presence' than the hogslayers but in strict comparison on the video the hogslayers definitely sound louder. It's the feeling of the bass that in person makes them seem possibly louder.
I know I'm close to being OK, but as Ivan and I found out the Swiss aren't exactly known for their compassion and understanding when it comes to traffic stops. (of course 40kph over isn't exactly as one or two db over ..... or is it? )
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That was with the cat. When I sold the silver one, I had to get a RWC (roadworthy certificate) and they were a "stickler" for noise levels.
Eddie
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| Thatch | | Thor | | | | Reg. Date | : | 24/06/2009 | | Posts | : | 3,655 | | Location | : | Savannah, GA, United States |
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| | Posted : 26 Apr 2012 - 11:17 Post title : Re: Inspection time - noise levels (Re: Eddie) | | | Good to know. I should be around a TOR equipped bike pretty soon. I'll take my android DB monitor with me and compare. While I can't be assured of an actual reading from the app, compare the TOR bike reading with the Predator reading should give me a good baseline. 
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| Linkdog | | Thor | | | | Reg. Date | : | 10/02/2011 | | Posts | : | 2,996 | | Location | : | Groveland, FL., United States |
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| | Posted : 26 Apr 2012 - 11:24 Post title : Re: Inspection time - noise levels (Re: Thatch) | | | I reread your post and thought the bird in stock form was below 80 db. I'm not even sure the long TORS would even hit 98 db. Although not for me, I'd love to hear a set of Preds.on the bird.
| Never drink from a cow with one udder! 2010 1600 Blue&White ( of course ) Long TORS and HP filter.
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| Thatch | | Thor | | | | Reg. Date | : | 24/06/2009 | | Posts | : | 3,655 | | Location | : | Savannah, GA, United States |
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| | Posted : 26 Apr 2012 - 11:28 Post title : Re: Inspection time - noise levels (Re: Thatch) | | | Found the sound testing section...
C-24. NOISE-LEVEL TESTING
a. The test in paragraph C-23will be conducted using scale "A" on the handheld decibel meter. The tester must be located 0.5 meters away, at a 45-degree angle from the exhaust pipe, and the instrument must remain level with the exhaust pipe as shown below. The exhaust noise level will be tested with the engine at idle and during acceleration up to half the permissible revolutions per minute (rpm) for the engine. This test must be conducted at a distance greater than 50 meters from surrounding structures. Figures C-1 through C-3show distances and angles for measuring noise.b. Table C-2lists decibel maximum allowable values for different vehicle types.
Category ofMotorcycle--------------Engine CylinderCapacity (cc)---------------Values(in dB(A))
First category-------------------------cc £ 80 cm3-----------------------------------75
Second category----------------------80 cm3 | cc £ 175 cm3----------------------77
Third category-------------------------cc > 175 cm3---------------------------------80
Ok, those db levels suck BUT the half rpm permissible is less than I've normally seen and would put it at about 3250 rpm give or take.
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| Linkdog | | Thor | | | | Reg. Date | : | 10/02/2011 | | Posts | : | 2,996 | | Location | : | Groveland, FL., United States |
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| | Posted : 26 Apr 2012 - 11:54 Post title : Re: Inspection time - noise levels (Re: Thatch) | | | Those are pretty conservative values, good thing they're no-load ratings. Are those European standards?
| Never drink from a cow with one udder! 2010 1600 Blue&White ( of course ) Long TORS and HP filter.
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| Thatch | | Thor | | | | Reg. Date | : | 24/06/2009 | | Posts | : | 3,655 | | Location | : | Savannah, GA, United States |
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| | Posted : 26 Apr 2012 - 12:00 Post title : Re: Inspection time - noise levels (Re: Linkdog) | | | Yeah they are, but at that rpm it might be fine.
They are SOFA levels (Status of Forces Agreement). Of course ultimately it's the enforcement levels that really matter and that seems to change per country. The info I had seen before had a set rpm of like 6000 rpm which was quite unfair for the tbird ... that's getting near red line and not a level that you're almost ever at.
I'll keep looking though.
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| Linkdog | | Thor | | | | Reg. Date | : | 10/02/2011 | | Posts | : | 2,996 | | Location | : | Groveland, FL., United States |
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| | Posted : 26 Apr 2012 - 12:19 Post title : Re: Inspection time - noise levels (Re: Thatch) | | | Well you could ask them to deduct a few points for the T-16 noise ( top end rattle, gear drive whine) This is very noticeable on the sound clips for different pipes, you really tell much about the pipes but you can sure hear that noise.
| Never drink from a cow with one udder! 2010 1600 Blue&White ( of course ) Long TORS and HP filter.
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