Decibel Level for a 50mm Termi System w/ Baffles Inserted

hypurone · January 20, 2009, 05:55:59 PM

Does anyone know of any published data/numbers for the above mentioned system/configuration? Or have had an "Official Inspection Test" done on their bike? I wanna ride Laguna Seca real bad this year and I know for a fact I'm not gonna pass the 92Db restriction w/o baffles. NOT EVEN CLOSE! Normally this is a good thing but not when you are gonna be tested on it.

I have saved my baffles for just such an occasion but I need to be sure before signing up and schlepping (sp?) down there 'cuz I don't wanna get booted and miss out on all the fun I coulda had...

Any info? Suggestions? There are no noise test stations anywhere in NorCal that I know of (not that I wanna go there and have some overzealous noise nazi lookin' at my bike ya know?). ONLY LAGUNA SECA DAMMIT!!

Ivan · January 20, 2009, 07:03:40 PM

Quote from: hypurone on January 20, 2009, 05:55:59 PM

Any info? Suggestions? There are no noise test stations anywhere in NorCal that I know of (not that I wanna go there and have some overzealous noise nazi lookin' at my bike ya know?). ONLY LAGUNA SECA DAMMIT!!

If you know the rules for making the measurements (distance from bike , rpms, angle, whatever) you can buy a cheap sound pressure meter from Radio Shack (last I knew they were around $30). That will at least tell you if you have a chance.

LA · January 20, 2009, 07:04:21 PM

They're damn quite, but less than 92?

I'm thinking maybe I remember they claimed 102 db. for the Termis.

Is it to just ride the track? Damn that's quiet.

LA

MAXdB · January 20, 2009, 07:07:02 PM

I would put the baffles on and just let off when you come to the part of the track with the little shack where the decibel reader/measurer thing is.. worked for a buddy of mine when we went..

hypurone · January 21, 2009, 09:59:50 AM

Quote from: Ivan on January 20, 2009, 07:03:40 PM
If you know the rules for making the measurements (distance from bike , rpms, angle, whatever) you can buy a cheap sound pressure meter from Radio Shack (last I knew they were around $30). That will at least tell you if you have a chance.

Yeah, thought about that but it would definitely be diff to duplicate the conditions I would be tested under at laguna.

Quote from: MAXdB on January 20, 2009, 07:07:02 PM
I would put the baffles on and just let off when you come to the part of the track with the little shack where the decibel reader/measurer thing is.. worked for a buddy of mine when we went..

I have heard that they change up the locations from where they test now. They got wise to that trick....

Quote from: LA on January 20, 2009, 07:04:21 PM
They're damn quite, but less than 92?
I'm thinking maybe I remember they claimed 102 db. for the Termis.
Is it to just ride the track? Damn that's quiet.
LA

Yeah, since there are "supposedly" homes near the track (more like ranches that shouldn't give a shit) that were "complaining", they had to institute noise limits. But the "real" events have no such restrictions! You think 92 is quiet, the EPA stock measured level is 80!

rgramjet · January 21, 2009, 10:50:44 AM

WHat was there first, the track or the houses?

Speeddog · January 21, 2009, 11:04:07 AM

Quote from: rgramjet on January 21, 2009, 10:50:44 AM
WHat was there first, the track or the houses?

Very likely the track was there first, but that never seems to matter much.

To the OP, you might want to check with the MOB folks, but IIRC, Laguna has a 'stock exhausts' rule.

rgramjet · January 21, 2009, 11:14:30 AM

That drives me NUTs!

Several shooting ranges have been shut down in my state due to noise ordinances installed after a housing development was installed on a previous farm field. People knew about the noise before purchasing the house and still pregnant doged after they moved in....

hypurone · January 21, 2009, 02:13:23 PM

Quote from: Speeddog on January 21, 2009, 11:04:07 AM
Very likely the track was there first, but that never seems to matter much.

To the OP, you might want to check with the MOB folks, but IIRC, Laguna has a 'stock exhausts' rule.

Ya know, I just found that out!! make the beast with two backsERS!!

MAXdB · January 21, 2009, 06:27:16 PM

well if you're in socal area, you're welcome to borrow my stockers that i have packed away in the garage.

hypurone · January 22, 2009, 07:26:30 AM

Quote from: MAXdB on January 21, 2009, 06:27:16 PM
well if you're in socal area, you're welcome to borrow my stockers that i have packed away in the garage.

Thanks for the offer. I'm in NorCal. So it looks like Thunderhill, here we come! [moto]

Jaman · January 22, 2009, 07:59:16 AM

Chuck, I have my stock exhaust in a box, if that helps....

J

hypurone · January 22, 2009, 11:50:17 AM

Quote from: Jaman on January 22, 2009, 07:59:16 AM
Chuck, I have my stock exhaust in a box, if that helps....

J

Thanks man I appreciate that but the point for me is to ride the bike in the state it is MEANT to be.

Putting the stockers back on would ruin it for me. make the beast with two backs Laguna Seca is what I say!!

MAXdB · January 25, 2009, 02:21:35 AM

I know it's a hassle to worry about the exhaust and all but laguna seca is worth the hassle IMO
especially so you can ride the corkscrew

hypurone · January 26, 2009, 10:13:27 AM

Quote from: MAXdB on January 25, 2009, 02:21:35 AM
I know it's a hassle to worry about the exhaust and all but laguna seca is worth the hassle IMO
especially so you can ride the corkscrew

I have ridden it before, so it is not worth the hassle to me. I haven't been to T-Hill in a few years so... I'm goin'!! [moto]

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Decibel Level for a 50mm Termi System w/ Baffles Inserted