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Message started by grapefruit on 01/31/06 at 14:10:16

Title: noise level
Post by grapefruit on 01/31/06 at 14:10:16

What is allowable noise level for motorcycles in your country? In Poland it is 96dB at 3/4 throttle. With my new exhaust (on the picture below) i have:

- about 86 dB at 900rpm,
- about 96 dB at 1/2 throttle,
- about 104 dB at 3/4 throttle (120 dB, or maybe 130 dB - starting jetplain :))

I have to say the sound is beautiful and I'll never come back to stock muff. I just wondering what police will say about my new modification...

http://www.bikepics.com/pics/pics/suzuki-savage-95-bikepics-511274.jpg

Title: Re: noise level
Post by Steve530 on 01/31/06 at 14:35:15

I think the Dyna Muffler I put on my Savage indicated that it meets the 88 dB requirements, but I haven't found any EPA regulations that require that level.

In general, noise is controlled at the local government level through nuisance ordinances. That is, if the motorcycle is too loud, the local police can cite you to court. THe judge can then impose a penalty or order you to replace the muffler or stop riding the motorcycle.

Title: Re: noise level
Post by SAMM on 01/31/06 at 14:39:50

Grapefruit...Where did you get the small sissy bar ( grab bar) behind your seat ?? many people here in the US are looking for them to purchase ??

Title: Re: noise level
Post by grapefruit on 01/31/06 at 14:45:47

SAMM, I made it myself, it is stainless steel.

Title: Re: noise level
Post by SAMM on 01/31/06 at 14:48:49

It looks cooool !! I hate the original !!

Title: Re: noise level
Post by slavy on 01/31/06 at 16:29:51

I don't think in Pl any cop will know the difference. So far I have never seen a cop with Db meter. Even in the tech. stations, where they make the anual check, nobody will have it. I don't think it is such a common bike, so the cops know what exactly comes on it.

Title: Re: noise level
Post by sluggo on 01/31/06 at 17:24:54

my experience has shown that "it's to loud" is usually just a fishing expedition. the ticket is the penalty for them not finding anything else wrong. 8)

Title: Re: noise level
Post by Steve530 on 01/31/06 at 18:20:27

I don't have any experience with it, but I'll bet Sluggo is right.

Title: Re: noise level
Post by torque on 01/31/06 at 18:33:11

i know that the stock muffler with the baffles taken out can set off car alarms ;D

Title: Re: noise level
Post by Reelthing on 01/31/06 at 18:37:40

That is good sport! buddy of mine with a roadking circles the garage at work keeping count ~40 he thinks at the same time - I can't get but about 10 or so with the jardines ;D

Title: Re: noise level
Post by Kaishaku on 02/01/06 at 03:00:45

I set off more alarms with the rusty muffler on my car :P

Title: Re: noise level
Post by clueless on 02/01/06 at 04:51:05

I'm lucky here. Live in Alabama where there is no vehicle testing of any kind. Would eliminate 50% of the cars out there. You can have a stick for a brake, it doesn't matter.
Keep that in mind if you ever visit here.
When asked by "the man" if my pipe is legal, I usually say"WHAT?".
Then I point to the writing on the pipe that says it's legal on a Harley. They don't know the difference. The only place my bike says Suzuki in on the crankcase.

'96 with harley muff with baffle punched. Kinda loud. I like it ;D

Title: Re: noise level
Post by Savage_Rob on 02/01/06 at 05:33:44

Try the AMA's site at http://www.amadirectlink.com/legisltn/laws.asp and click on the state you want to see. For example, TX has "no acoustical criteria" while WA shows the following:

Max A-weighted sound level as measured at 50 feet (WAC 173-62-030): 1)78dBA at 45mph or less; 2)82dBA over 45mph. Stationary 20 inch standard: Models before 1986--99dBA.

But most of the time on the road accurate measurement is probably just not possible. I'd bet the only place it could be accurately measured would be at an inspection center but I doubt they go to the expense.

Title: Re: noise level
Post by Max_Morley on 02/01/06 at 09:30:57

At one time Seattle PD were using a decibel meter on the motorcycles coming off the Washington State Ferry system. The bicycles and motorcycles get first on and first off privledges so when they open exhaust bikes leave and go up the ramp it gets pretty noisy. Most times if the state/city doesn't have an ordinance the Federal rules apply if they know what they are. As one who has lost most of his hearing due to loud noise in the workplace I run a baffled heavy wall quality muffler and it easily provides a more appealing sound and appearance but w/o a noise level that will get others attention. HD makes mufflers good for this option, they have much heavier wall thickness and decent size perforations in and out of the glasspac area and stock has a center baffle. With the much discussed 10 deg 7 inch adapter it does make a great low cost option. Max

Title: Re: noise level
Post by savage777 on 02/01/06 at 10:10:12

I run a Jardine with NO baffle and where I'm at here just north of St. Louis on the Illinois side we have the " River Road " which during the season is a bike fest every weekend. You have 40 miles of highway that run right next to the Mississippi River so the view is awesome. Anyway back to the subject... around here unless your bike is just so obscenely loud , the police don't mess with people too much... that and the fact that there are just so many bikes out there at one time, the police spend more time checkin out the bikes rather that messin with people......(usually) lol

Title: Re: noise level
Post by Savage_Rob on 02/01/06 at 10:15:51

I'm really satisfied with the performance of my MAC but I would like to make it just a bit quieter. That's why I decided to try the Sportster muffler at some point. It's in the garage, I just need to take the time and do the mods.

Title: Re: noise level
Post by Red_Wine on 02/03/06 at 06:55:35

clueless wrote:

'96 with harley muff with baffle punched. Kinda loud. I like it ;D

Hello Clueless,

I'm also interested in louder pipe, but not too much. I wonder how loud the Harley muffler you have is. I also have a Harley muff on my 1990, 400cc, chain-driven thumper.

My only concern is the restriction to exhaust flow required for the engine. Did you just punch an iron bar through the muff to punch it out?

Thanks for your input.

Best,

RW

Title: Re: noise level
Post by grapefruit on 02/03/06 at 13:06:17

Today I've had opportunity to hear cobra exhaust on Wild Star 1600... :o...It was at least like four savages with mufflers like mine, so probably I dont need to worry about the noise produced by my new muffler :)