Porsche 911 GT3 Cup 2018, Техническое руководство

Страница: 38 / 477

Version: 4/20/2018
37
Engine
911 GT3 Cup (991 II)
MY 2018
Engine
Noise Emission
The following noise emission values for the Porsche 911 GT3 Cup MY 2018 (type
991 II) are measured by Porsche AG as guide values and are to inform about the
different available exhaust configurations. The guide values can differ from the actual
values measured by any race track through technical tolerances (wear and tear,
deterioration of filling material, etc.) and environmental influences (weather, ambient
pressure, structural conditions, etc.). The measurements by any race tracks and their
allowance to operate are to be followed and no claim for the compliance with the
numbers indicated will be recognized
Overview drive-by measurements:
Measurment parameters Exhaust system configuration
Measuring
height
Distance to
exhaust pipe
Angle to
exhaust pipe
Engine speed
(rpm)
Supercup
exhaust
Center silencer Center silencer
+ side silencers
Accoustic
power [dB(A)]
Accoustic
power [dB(A)]
Accoustic
power [dB(A)]
1,2 m 15 m 90° 8500
( full load)
114,2 106,1 99,3
1,2 m 10 – 40 m 90° 8500
( full load)
116,6 107,6 101,9
Overview stationary measurements:
Measurment parameters Exhaust system configuration
Measuring
height Distance to
exhaust pipe Angle to
exhaust pipe Engine speed
(rpm) Supercup
exhaust Center silencer Center silencer
+ side silencers
Accoustic
power [dB(A)]
Accoustic
power [dB(A)]
Accoustic
power [dB(A)]
0,53 m (7 ft) 2,13 m (7 ft) 45° 65% nmax
(5500 )
123,9 102,5 98
0,2 m 0,5 m 45° 4500 - 110,6 100,6
0,5 m 0,5 m 45° 3800 117,2 101,5 96
0,5 m 0,5 m 45° 4500 - - 98,5
0,5 m 0,5 m 45° 75% nmax
(6375)
129,3 110,6 104,7
0,5 m 1 m 45° 75% nmax
(6375) 127,3 109,3 100,5
0,5 m 2 m 45° 75% nmax
(6375) 123,8 104,2 94,5
0,5 m 3 m 45° 75% nmax
(6375)
121,3 103,5 91