T80208

TRANSPORTATION MANUFACTURING CORPORATION (TMC)

Exterior Noise Test

Stationary

Date : 1990-11-20
Personnel : S.M. & B.L.
Temperature (°F) : 52 Humidity (%) : 33
Wind Speed (mph) : 5 Wind Direction : NNE
Barometric Pressure (in.Hg) : 30.4
Verify that microphone height is 4 feet, wind speed is less than 12 mpg and ambient temperature is between 30 F and 90 F: true checked by
Initial Sound Level Meter Calibration: true checked by
Exterior Ambient Noise Level dB(A): 42.0

Accessories and Air Conditioning ON
Throttle Position Engine RPM Curb (Right) Side dB(A) Street (Left) Side dB(A)
Measured Measured
Low Idle 600 65.3 66.7
High Idle 950 66.3 69.0
Wide Open Throttle 2196 72.7 73.5

Accessories and Air Conditioning OFF
Throttle Position Engine RPM Curb (Right) Side dB(A) Street (Left) Side dB(A)
Measured Measured
Low Idle 601 63.8 66.7
High Idle 950 66.4 68.8
Wide Open Throttle 2201 73.5 74.5