Post your exhaust's decibel level here - Star Motorcycle Forums: Star Raider, V-Max, V-Star, Road-Star Forum
 
LinkBack Thread Tools Display Modes
post #1 of 9 (permalink) Old 06-02-2016, 01:53 PM Thread Starter
Senior Member
 
Join Date: May 2016
Posts: 136
Post your exhaust's decibel level here

Ok, so there are a bunch of bike-botherers out there, checking DB levels on after market pipes and throwing tickets around like confetti for "noise disturbances" and the like. Ka-phooey.

Thought if bike owners with after market exhausts could post the DB level of their pipes here it would really help people like me that are in the market for a new set, but keen to find out if they fall within the limits of our local constabulary before ponying up the bucks.

There's an app called Decibel 10th (I just downloaded it) that seems to be right on the money. It's free - so go ahead, do a guy a favour and tell us how loud (or quiet, it's all good) your pipes are. Cobra, V&H, Road Burners...slip-ons or full systems...the more info on DB levels, the better.

Ideally 2 readings, one when idling (take the measurement about 50cm away from the muffler, and at a 45 degree angle away from it) and one at, say, 2500 rpm (approx).

Keeping it legit, but barely...

Yamez - putting the Yam into Yamaha

Last edited by The Jimbonaut; 06-02-2016 at 09:48 PM.
The Jimbonaut is offline  
Sponsored Links
Advertisement
 
post #2 of 9 (permalink) Old 06-06-2016, 10:33 AM Thread Starter
Senior Member
 
Join Date: May 2016
Posts: 136
It was worth a try!

Think I'm going to order some Cobra Speedster Longs (with the baffles) - once I've installed them I'm come back and post the sound

Yamez - putting the Yam into Yamaha
The Jimbonaut is offline  
post #3 of 9 (permalink) Old 06-06-2016, 10:44 AM
Senior Member
 
Jammin'John's Avatar
 
Join Date: Jul 2013
Location: http://www.tughill.org/about/
Posts: 172
Huh ? I don't have a decibel meter and you didn't wait very long to find out the information.
ALL aftermarket pipes are illegal. They are ALL louder than stock.
The ONLY legal pipe is a stock pipe.
I think that the pipes you bought scrape the pavement pretty easily. You'll find out soon. Enjoy.

JJ

Let's ride some more !
Jammin'John is offline  
Sponsored Links
Advertisement
 
post #4 of 9 (permalink) Old 06-06-2016, 12:33 PM Thread Starter
Senior Member
 
Join Date: May 2016
Posts: 136
It's ok John, my suggestion was a general one and only a suggestion, not a demand =)

Re the decibel meter, who the hell does have one anyway?! If you're interested you can download a free one from the app store (if you have a smartphone)

Thanks for the info on the pipes scraping - are they much lower that stock? They don't look it - can't imagine how tight a turn I'd have to make to scuff those things up...

Peace out,

- J

Yamez - putting the Yam into Yamaha

Last edited by The Jimbonaut; 06-06-2016 at 12:35 PM.
The Jimbonaut is offline  
post #5 of 9 (permalink) Old 06-06-2016, 03:38 PM
Senior Member
 
Jammin'John's Avatar
 
Join Date: Jul 2013
Location: http://www.tughill.org/about/
Posts: 172
" (if you have a smartphone)" Nope,a dumbphone.

"Thanks for the info on the pipes scraping - are they much lower that stock? They don't look it - can't imagine how tight a turn I'd have to make to scuff those things up..."

Don't know for sure. I scrape my slip on. They look awfully long.
You'll find out.

Enjoy.

JJ

Let's ride some more !
Jammin'John is offline  
post #6 of 9 (permalink) Old 06-06-2016, 06:30 PM
Senior Member
 
Charon's Avatar
 
Join Date: Sep 2010
Location: Harvard, NE
Posts: 421
I had an app for a db meter on my smartphone, and my tablet. Seemed pretty accurate compared to a sound and light guy's professional db meter, at least for music. Trouble was, the app topped out at 94 db. Then I got rid of the smart phone. When the app for the tablet wanted to update itself, it also asked for access to location, files, and photos. A sound level meter doesn't need that, so I uninstalled it. Now I rely on a thirty plus year old Radio Shack (Realistic) meter.

By the way, Jammin' John is correct. According to EPA rules, noise is considered pollution. Anything that raises pollution, even if it still falls below legal limits, is illegal.

Last edited by Charon; 06-06-2016 at 06:34 PM.
Charon is offline  
post #7 of 9 (permalink) Old 06-06-2016, 08:30 PM
Senior Member
 
Jammin'John's Avatar
 
Join Date: Jul 2013
Location: http://www.tughill.org/about/
Posts: 172
Yea,it's amazing how many cruiser riders run illegal exhausts. They are the largest group for changing the pipes.
So we get noise and air pollution.
The reason that the cops don't enforce the law is that THEY ride Harleys with loud pipes. It's that simple.

JJ

Let's ride some more !
Jammin'John is offline  
post #8 of 9 (permalink) Old 06-06-2016, 09:17 PM
Senior Member
 
Charon's Avatar
 
Join Date: Sep 2010
Location: Harvard, NE
Posts: 421
There is probably an even more important factor - money. The EPA rules are Federal, and the EPA doesn't have the money or manpower to enforce them. State and local cops are not going to write tickets for Federal rule violations, when they don't get the money for the fines. If there are local laws being violated, the appropriate police agency may write cites for them. Trouble is local laws don't usually cite EPA rules, but other variations like "excessive noise or smoke". A few localities (I am told Denver is one) have come up with rules that essentially say if the pipe isn't properly marked as compliant for the make and model of bike, it is illegal. Bikers claim cars and other motor vehicles are not so constrained (you can get a replacement muffler for your Chevy at Midas) and thus claim discrimination. I seem to remember some cops in California claimed - and got - a "law enforcement exemption" allowing them to run louder pipes on the unproven "loud pipes save lives" theory. The fun never stops.
Charon is offline  
post #9 of 9 (permalink) Old 06-07-2016, 10:00 AM Thread Starter
Senior Member
 
Join Date: May 2016
Posts: 136
Yeah, the whole DB level thing as far as the local constabulary is concentred is definitely a bit of a grey area - and certainly one that differs hugely depending on where we are in the world. From what I can tell, here in Quebec they're pretty vigilant.

I think it would be cool if there was some kind of pipe decibel database - not only would it be really helpful but also (if we could post sound clips too) music to our ears =)

Thanks for input one and all,

- J

Yamez - putting the Yam into Yamaha
The Jimbonaut is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Star Motorcycle Forums: Star Raider, V-Max, V-Star, Road-Star Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome