NB! New version of Noise Regulation will apply to all cars and motorcycles from 2nd of July 2018.

Static test for cars

The initial test is a static test which is carried out using a handheld meter that is accepted and regulated by auto24ring. There must be a working rev counter. Each car is measured 0,5 metersaway from the exhaust at 45 degree angle when the engine is being held at 6,000 rpm. In cases where the vehicle has two separated exhausts the measurement will be taken as below from the median point between two. Maximum noise at static test allowed is 108 dB (A). 

Pass by noise test

No vehicle is allowed to drive at the track if the passing by noise exeeds 113 dB (A). Black flag will be shown to the vehicle if the noise is higher than quoted, which means that the vehicle must leave the track at the end of the lap.

Motorbikes static test

The initial test is a static test which is carried out using a handheld meter that is accepted and regulated by auto24ring. There must be a working rev counter. The regulation applies also to all the vehicles that are driven by motorbike engine. Each motorbike is measured 0,5 metersaway from the exhaust at 45 degree angle. In cases where the vehicle has two separated exhausts the measurement will be taken as below from the median point between two. Maximum noise at static test allowed is 108 dB (A). The test is carried out when the engine is being held at rpm-s as described in following table:

Capacity, cc

1 cylinder

2 cylinder

3 cylinder

4 cylinders or more

250 cc (4 stroke)

5 500

8 500

 

 

300 cc (4 stroke)

 

7 000

 

 

400 cc (4 stroke)

5 000

6 500

7 000

8 000

600 cc (4 stroke)

5 000

5 500

6 500

8 500

750 cc (4 stroke)

5 000

5 500

6 500

8 500

750+ cc (4 stroke)

4 500

5 000

5 000

7 000

125 cc (2 stroke)

7 000

 

 

 

250 cc (2 stroke)

 

7 000

 

 

500 cc (2 stroke)

 

5 500

7 000

7 000

 

Pass by noise test

No vehicle is allowed to drive at the track if the passing by noise exeeds 113 dB (A). Black flag will be shown to the vehicle if the noise is higher than quoted, which means that the vehicle must leave the track at the end of the lap.

Both, static and passing by noise limits must be met. If at least one limit is exeeded, driving at the track is not allowed.


Noise regulation until July 1, 2018

Cars

The initial test is a static test which is carried out using a handheld meter. There must be a working rev counter. Each car is measured 0,5 metersaway from the exhaust at 45 degree angle when the engine is being held at 4,500 rpm. In cases where the vehicle has two separated exhausts the measurement will be taken as below from the median point between two. Maximum noise (incl tolerance of the meter) allowed is 110 dB (A).


Motorbikes

The initial test is a static test which is carried out using a handheld meter. There must be a working rev counter. The regulation applies also to all the vehicles that are driven by motorbike engine. Each motorbike is measured 0,5 metersaway from the exhaust at 45 degree angle. In cases where the vehicle has two separated exhausts the measurement will be taken as below from the median point between two. Maximum noise (incl tolerance of the meter) allowed is 110 dB (A). The test is carried out when the engine is being held at rpm-s as described in following table:

Capacity, cc

1 cylinder

2 cylinder

3 cylinder

4 cylinders or more

250 cc (4 stroke)

5 500

8 500

 

 

300 cc (4 stroke)

 

7 000

 

 

400 cc (4 stroke)

5 000

6 500

7 000

8 000

600 cc (4 stroke)

5 000

5 500

6 500

7 000

750 cc (4 stroke)

5 000

5 500

6 500

7 000

750+ cc (4 stroke)

4 500

5 000

5 000

5 500

125 cc (2 stroke)

7 000

 

 

 

250 cc (2 stroke)

 

7 000

 

 

500 cc (2 stroke)

 

5 500

7 000

7 000