Laguna Seca Sound Limits, how to meet them

Desmophile · Jul 17, 2015

1199S with full Termi's, upmap.

I would really like to go to Laguna for a track day. Anything I can add to the Termi's to cut the db level?, and meet their restrictions?

thanks, paul

80shilling · Jul 17, 2015

There's a guy who usually turns up for every Laguna trackday that in essence custom makes sound attenuators for almost every bike. Even stock bikes mostly don't pass sound, especially if it's a 90db day.

I will try to get you his contact information.

shakazulu12 · Jul 17, 2015

Probably thinking of Jay Murray?

Keigwins@TheTrack - About Our Events - Sount Monitoring

madmaxmenon · Jul 17, 2015

see this thread: http://ducati1299.com/ducati-1199/4184-laguna-seca-noise-levels.html not sure if Jay has an updated version since then, but this solution added weight and costed about $600 if I remember right. I did not want to spend that much so skipped it.

Just remember to short shift and keep to the inside of 6. The couple of times I forgot, I blew sound on the stock pipes. Keigwins gives you 3 warnings on stock pipes, which was enough to get me through all my days

reganc · Jul 17, 2015

madmaxmenon said:
see this thread: http://ducati1299.com/ducati-1199/4184-laguna-seca-noise-levels.html not sure if Jay has an updated version since then, but this solution added weight and costed about $600 if I remember right. I did not want to spend that much so skipped it.

Just remember to short shift and keep to the inside of 6. The couple of times I forgot, I blew sound on the stock pipes. Keigwins gives you 3 warnings on stock pipes, which was enough to get me through all my days

yea it's BS and the 90db limit that they have some days is totally unrealistic (most performance cars/bikes cannot pass it).

the only way to ride it outside a race day is to roll off otherwise you will be flagged.

AntiHero · Jul 20, 2015

Only solution that always got me through sound at Laguna was to instead go to Thunderhill or Sonoma. I've even been meatballed at other corners when shortshifting between 5 and 6.

Gunny Fitz · Jul 20, 2015

This is just some plain weird ... .... right here IMHO.
Why in the world does this track in particular care so heavily about this matter?
Is it because they are located so close to a metropolis and receive so many complaints on noise that they require such ridiculous restrictions? Its a damn racetrack for heavens sake and engines (no matter what they are installed inside) make noise! Sheer stupidity if you ask me - not that my opinion matters worth a crap at all

However, since this place puts your boys in a vise, having this guy around to create a personalized device to dampen the db level out of your bike has to be a real money maker from him eh? Are they easily removable so one doesn't need to keep it on 24/7 or what? I bet most bikes we all have, with slips and def full systems all go WAY OVER the db scales for sure don't you guys?

Notec · Jul 20, 2015

The track is located in a very affluent town. The sound echoes off the hills and the homeowners in that area want no part of that. dB limits are lifted only for major events. Same thing for Limerock in Lakeville, CT. I've seen bone stock S1000s black flagged at Laguna for not short-shifting in turn 5 to 6. Unless your bike is whisper quiet, your lap will always be compromised in that area of the track. So I suggest on your last lap of the session, go for broke if you have baffles in place or are running a stock exhaust system.

AntiHero · Jul 22, 2015

A big part of the problem is all the candyasses who decided to build their summer vacation home next to a racetrack. It's like vegetarians showing up to a steakhouse and complaining about the smell of beef. But--and here's the real problem--the nimrods win because the track is owned by the county and just leased to the organizers. So there's no "hey, we were here first" track owner to yell '.... you' during local community council meetings.

To make things worse, the local gov't guys who owns the property all but refuse to invest in upgrades, so all the facilities are as jankey as they were 30 years ago. (Kind of like that ....-head landlord who feels it's the tenants responsibility to install new windows and screens, pay for cement work, new fences and a roof.)

BTrain5489 · Jul 23, 2015

AntiHero said:
A big part of the problem is all the candyasses who decided to build their summer vacation home next to a racetrack. It's like vegetarians showing up to a steakhouse and complaining about the smell of beef. But--and here's the real problem--the nimrods win because the track is owned by the county and just leased to the organizers. So there's no "hey, we were here first" track owner to yell '.... you' during local community council meetings.

To make things worse, the local gov't guys who owns the property all but refuse to invest in upgrades, so all the facilities are as jankey as they were 30 years ago. (Kind of like that ....-head landlord who feels it's the tenants responsibility to install new windows and screens, pay for cement work, new fences and a roof.)

When the nicest track in the US is hemorrhaging money it kinda sets a bad precedent for convincing other owners to make upgrades. Just saying...

centeroff · Jul 23, 2015

BTrain5489 said:
When the nicest track in the US is hemorrhaging money it kinda sets a bad precedent for convincing other owners to make upgrades. Just saying...

It's in Kalifornia, it has to lose money, or it will come under attack by the state.
The Sea Otter Classic, and Oktoberfest events probably bring in more money then their racing venues.

RRnold · Jul 24, 2015

Desmophile said:
1199S with full Termi's, upmap.

I would really like to go to Laguna for a track day. Anything I can add to the Termi's to cut the db level?, and meet their restrictions?

thanks, paul

Do you have the silencers? The track org here has several categories.

1)Stock exhaust-You're allowed to get flagged 3 times
2)Aftermarket exhaust with silencers-You're allowed to get flagged 2 times
3)Aftermarket exhaust w/out silencers-You're allowed to get flagged once and you're done

They allow you to do a sound test throughout the day. Everyone is required to have numbers on the front and right side of your bike. Before you roll out for your session, let the grid marshal know and they'll let you take 3 laps out and then pit on the 3rd lap so they can tell you what your exhaust is measuring.

I did a sound test and measured 91db @ 3rd gear WOT after T5.

Your other option is to

1)Short shift after T5
2)Stay towards the left section of the track
3)Roll off the throttle after T5
4)Go with the Jay's silencer

Buliwyf · Jul 24, 2015

Meh, guess I'm crossing Laguna Seca off my list. F them. There's other tracks.

centeroff · Jul 24, 2015

RRnold; 1)Short shift after T5 2)Stay towards the left section of the track 3)Roll off the throttle after T5 4)Go with the Jay's silencer[/QUOTE said:
I will never go back and run there again, they ruined the track when they shortened up the front strait and added all those extra turns. And the run up the hill to the cork screw what they now call turn six has always been the hardest turn to really get right, and also one of the most rewarding on the stop watch. Dogging it through there ,to not trip the sound meter is most unsatisfactory, and you will never know what you can really do around Laguna.

Notec · Jul 24, 2015

Buliwyf said:
Meh, guess I'm crossing Laguna Seca off my list. F them. There's other tracks.

The track is still insanely fun. I wouldn't let the strict sound policy stop you from going.

Also, I heard or read some time ago that MWR has a filter that helps lower the dB of the Pani? Am I mistaken?

IdZer0 · Jul 24, 2015

We have the same problem at our local track. The workarround they advise is to stay within 1 second of someone else at measurement point, that way they can't tell who is over the limit. Don't know if that works at COTA though.

Notec · Jul 25, 2015

IdZer0 said:
We have the same problem at our local track. The workarround they advise is to stay within 1 second of someone else at measurement point, that way they can't tell who is over the limit. Don't know if that works at COTA though.

Not a bad idea at all. Surely 2 bikes that would normally pass the dB test would exceed the limits set if they were both very close together at the time of measurement. If the other rider is someone you can trust, you both could likely get away with bombing through that section of the track if you stayed really close together.

Also, this isn't a problem at COTA which is located in busy Austin, Texas. Laguna Seca is located in quiet Salinas, California.

RRnold · Jul 25, 2015

centeroff said:
I will never go back and run there again, they ruined the track when they shortened up the front strait and added all those extra turns. And the run up the hill to the cork screw what they now call turn six has always been the hardest turn to really get right, and also one of the most rewarding on the stop watch. Dogging it through there ,to not trip the sound meter is most unsatisfactory, and you will never know what you can really do around Laguna.

Was it shorten for MotoGP? I remember they moved the bridge around but never knew they shortened the track. My first time there I was putting around there and worried about the sound booth.

It wasn't until I did a sound check and Keigwins had a 92db limit, that I was able to push the sound restriction to the side with my stock Pani. I was in the low 1:40's on the stock Pirelli SP's.

T6 has a major dip towards the inside but overall, it's a fairly easy and fun track to ride. Now that I'm running the 200/60's, I know I can drop those times. Chaz Davies qualified at 1:21.1 last Sat so it's cool to know what the pros run there. I'm definitely going back, it's an awesome track.

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Laguna Seca Sound Limits, how to meet them

Desmophile

80shilling

shakazulu12

madmaxmenon

reganc

AntiHero

Gunny Fitz

Notec

AntiHero

BTrain5489

centeroff

RRnold

Buliwyf

centeroff

Notec

IdZer0

Notec

RRnold

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