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New sound regs--Sleds/OHV

B

BackCountryBob

Well-known member
State legislature passed a new noise ordinance, 90db stationary test for sleds from July 2, 1977 to present. $100 fine.:mad:

BCB
 
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If they stop you, fight to get the meter calibrated over temperature. Especially if they have a cheap radio-shark meter. I'd be surprised if they're even within 10% at 25°C.

Also, 88dB from what distance?

I still call bullsh¡t. Damn greenies.
 
have some steel wool with you at all times, shove it into the outlet of your can. Guys I used to ride with would get into the park that way ;)
 
Aren't db ratings for off road dirtbikes like 102db or something higher?
If so, why wouldn't that apply to all OHVs..

As I understand db, it's an exponential increase in sound, not just linear.

MD.
 
As I understand db, it's an exponential increase in sound, not just linear.
<geek alert>
It's a logarithmic scale, essentially a ratio of power out to power in, where 1 bel expresses the loss in audio power over 1 mile of telephone cable. Since the bel is rather large, the "decibel", or 1/10 of a bel, is the more commonly used unit.

I really don't like that unit of measure.... the whole thing is rather hard to quantify and based heavily on relative measurements. Also, if memory serves me right, there's a few "scale factors" to the sound measurement... intensity, pressure, frequency-weighted... probably a few others. Intensity and pressure measurements will give you different readings, but both in dB (Remember; that's a ratio of units, not an actual unit itself), and the human ear will "hear" a different sound power at different frequencies even if they're electrically at the same amplitude. I'm sure you could fight a ticket with enough technical buzzwords that it'd get thrown out.
</geek alert>

I'll probably get bashed for saying this but i would prefer if sleds were a lot quieter.
Eh, i'm with you on that one.
 
* Near total silence - 0 dB
* A whisper - 15 dB
* Normal conversation - 60 dB
* A lawnmower - 90 dB
* A car horn - 110 dB
* A rock concert or a jet engine - 120 dB
* A gunshot or firecracker - 140 dB
[/quote

So..how exactly are you suppose to know if your within 88 db in the first place?


I wish they'd stop traffic on 6th Ave, so I didn't have to hear cars going by all the time. They should put a law on when you can drive.
They should limit the number of cars per hour on roads.
They should put a limit on the number of people to a city.
Limit the number of greenies to a state...
Limit the number of skiers allowed on the interstate.

Skier traffic is more annoying than anything I've yet to experiance while snowmobiling. Yeah, I'll even put up with plpers w/ "brap braap braaap thumb" syndrome. Since I can at least get away from that.


I honestly don't like loud sleds, or at least don't like riding them all day long. But I have had, and do have loud sleds..
But, I in no way believe in having a loud sled, just to have a loud sled either.
 
If a lawnmower is 90db, then a stock sled is more! My advice, get to the parking lots early, get your gear on, make sure that you have everything in your pack, double check fuel and oil and get the hell outta there. The FS is not going to be in the lots until 9:30-10am!
 
Mule, come up with a little speech that we can all recite in the courthouse with so much technical jargon it'll make the stupid judge's head spin!
 
I was just corrected, the DB is 90, not 88 which was the old standard. Sorry for the confusion. I'm editing my original post.

BCB
 
If a lawnmower is 90db, then a stock sled is more! My advice, get to the parking lots early, get your gear on, make sure that you have everything in your pack, double check fuel and oil and get the hell outta there. The FS is not going to be in the lots until 9:30-10am!

Depends on the lawnmower, and which stock sled!

I'm going to go start the lawn mower, and see if i can hear my sled idle over it. lol
How rediculous..

My straight piped 4s turbo is quieter (less ear piercing) than my HPS can'd 2s...

Maybe I'll be coming up w/ an under tunnel Yoshi setup sooner than I thought.
Where can I get a 2.5" + ID sport bike muffler? The largest I can find is 2.25".
Who in Denver (local) can fab up some tubing.. hah
 
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If a lawnmower is 90db, then a stock sled is more! My advice, get to the parking lots early, get your gear on, make sure that you have everything in your pack, double check fuel and oil and get the hell outta there. The FS is not going to be in the lots until 9:30-10am!

And if there just doing lot checks...I think a lot of guys can get outta there w/o issue if they aren't braap braapin around!
 
If you are in Vail, pay on the way in and do not ride past the ranger station. Point it up the hill in the lot and go. I have only seen (1) ranger off trail and he was looking for a lost skier.
 
If you are in Vail, pay on the way in and do not ride past the ranger station. Point it up the hill in the lot and go. I have only seen (1) ranger off trail and he was looking for a lost skier.

I have seen them off trail...putting up more No Snowmobiling signs.

any idea on how far away they measure from?
 
Huh, ran across this just now doing some research for work...



some interesting principles how the human ear reacts to frequency and pressure... wonder if FS's meters are pressure and altitude compensated... more reason to call the whole thing BS.
 
DJ---call Tex at A & T Muffler 303-420-1643. He's in Arvada and was an Artic Cat dealer--so he knows how to deal with sleds.

BCB
 
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