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  • Measuring Torsional Crank Shaft Jitter
    Using Prosig's P8000 series data acquisition system with DATS signal analysis software, torsional analysis (crank jitter) was performed on an automotive engine attached to an engine dynamometer. The significance of this is that only one tachometer channel was required to identify crank jitter.
  • Do You Need To Measure Brake Noise?
    DATS smoothing PROTOR runup vibration microphone Fourier aliasing P8000 strain gauge de-spike ENBW despike muffler gearbox strain gage engineering acoustic phaseless spikes Butterworth fatigue tachometer engine orders noise hammer accelerometer overall level suspension exhaust strain GPS torsional
  • Engineering the new V-Rod
    , shows the results of engineers working closely with stylists. The bike represents several firsts for the industry, such as anodized aluminum bodywork and stylized radiator cover. The bike weighs 595 lb and lists at $16,995. The instrument cluster for the V-Rod neatly packages tachometer, speedometer
  • Buick Lacrosse CXS
    . If the tachometer was not reading 700 rpm at idle, you wouldn't know the engine was running. The company says a QuietTuning initiative was aimed at hushing noise from the body, powertrain, and suspensions. For instance, GM engineers applied acoustical laminate on the windshield and front side glass
  • Century Limited 2000
    . The frame, suspension, and engine transmit few vibrations at any speed. The design goal seems to have been moving people with minimal jostle. For example, with a little background noise from the radio and no tachometer, I found it almost impossible to tell when the transmission shifted. Listening
  • 2000 Cavalier: Same old, same old
    . Surprisingly, a deck lid spoiler is standard, as is A/C, AM/FM stereo CD, tilt wheel, tachometer, and speed control. My '98 cost about this much without the tilt wheel and speed control, two items I now wish I had. The L4 engine and manual transmission are pretty quiet through the gears, but not as quick
  • Corvette Hardtop - Impressive
    Dodge Charger (383-cu-in. Magnum engine, four-speed) and an Olds 442 of the same year. But the Vette simply outperforms those dinosaurs -- and every car I've driven since -- by a wide margin. The light pewter metallic paint finish had my neighbor, a fastidious antique car collector, drooling. He
  • 2003 SVT Focus five door
    its driver quickly disappeared as a simple push on the accelerator left him behind. The 2.0-liter four-cylinder engine churns out 170 hp and 145 lb-ft of torque. A Getrag six-speed manual transmission adds to the fun. Shifting is relatively easy with a solid feeling, and the clutch is firm

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