cajerseyboy

Rennlisters - my father is coming to CA for the holidays, so of course, I need to show him a good time by taking him to Laguna for a track day.

Here's the dilemma. Laguna has a 90db sound limit for the event and if my GTS goes over I get meatballed and need to pit. 2 of those and I'm done for the day. They are very strict there.

Has anyone measured the db level of the GTS? (3.8L engine. with power kit and PSE)

Needsdecaf

If you have a problem, turn PSE off and disconnect the valve lines.

RODOLFO04

I highly doubt a stock exhaust is going to exceed the decibel level ay laguna

it is mostly for aftermarket exhausts

and like They just said, just turn PSE off, in case there is a problem

cajerseyboy

good point. the valve lines would need to be disconnected as PSE engages around 4500 RPMs regardless of PSE button being on or off due to the vacuum effect . The mic is located at turn 5 which is an uphill climb so it's a full throttle situation.

cajerseyboy

I passed when the limit was 93 dbs. I just wasn't sure about 90 dbs. Fingers crossed.

NoGaBiker

I think under WOT there's no diff between PSE and /PSE.

rezgui.rachid

It is 122.8 dB at the exit of the exhaust.
https://youtu.be/qVWKgbZZNTM
minute 4:56

Hope this helps

RODOLFO04

Yes, it must be 120 dbsat the Tip of the exhaust, but it must be like 80 at the side of the track, were They mesure the Sound

cajerseyboy

^^^ yes the sound level goes down by 6dbs every time you double the distance. Goes down 20db when measured 10x the distance. Just learned of the inverse square law . Based on this I should be well under. If I still had my AWE switch path I would be SOL. Thanks for the replies everyone.

SoCal911

I've heard of others using a snorkel exhaust system to push the exhaust note to the inside of the track specifically for this reason.

https://rennlist.com/forums/997-gt2-...ed-w-87db.html