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Sound Limits at Laguna Seca – A Monterey Christmas

The Laguna Seca event is quickly approaching!

From an article, a few years ago, it seems like the focus is up the hill towards turn 6.
photo courtesy of South Bay Riders.

1. You MUST have a QUIET CAR! You will be kicked out of the event after three strikes. That is 3 for the whole weekend.

2. You MUST have a QUIET CAR! You will be kicked out of the event after three strikes. That is 3 for the whole weekend.

3. You MUST have a QUIET CAR! You will be kicked out of the event after three strikes. That is 3 for the whole weekend.

Three strikes and you are out.

I said that three times for a reason!

Remember that your intake system can add to the overall sound of the car! It is not just the tailpipe. Intake roar can add significantly to the sound level.
When testing your car, make certain it is under load, like on a dyno, or on the road.


The 3 strikes start from Friday test day and end on Sunday.
There is NO testing. There are no retries. If you fail three times you are done for the weekend.

If you fail and get kicked out by the track, it is your fault., You have been given plenty of warning via our communications, via the CCES forum, social media, email, and our website. Put at least one or two mufflers on the car, and quiet those intakes.

90.3dB would have you going home.

Again… Your race car must be quiet. All cars will be required to have mufflers. There are NO EXCEPTIONS to this rule.
“But I don’t have room for a muffler” is not a valid excuse.
These are county and track rules.


90db at 50 feet or you are asked to leave the event by the county and the track.

Even quiet cars should have the exhaust exits pointed up and to drivers left.
Keep the intake air filters UNDER the hood and don’t try and add ram air unless the intake is baffled as the intake roar sound will exit the front and add to your overall noise (dB) number.

EVEN A STOCK EXHAUST MAY BE TOO LOUD!

Good read…
https://www.counterspacegarage.com/blog/publications/these-stock-cars-fail-laguna-seca-sound-limit/

If you have any questions email us at media@champcar.org

Event Supplemental Rules –
https://champcar.org/register/supplementalrules/398.pdf

Bill Strong
Marketing Director
ChampCar Endurance Series

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