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2004 Caterpillar C7 Benchmarking Report 

The Model Year 2004 Caterpillar C7 engine assessment includes the following data:

• Extensive steady-state mapping at 152 speed/load conditions, including:

  • Performance

  • Gaseous emissions and smoke (particulate emissions taken at 21 points)

  • Fuel consumption and efficiency

  • Fuel injection schedule

  • Heat rejection

    • Aftercooler

    • Total engine coolant

• Step transient response testing at three test speeds, 0-100-0% load:

  • Torque rise rate

  • NO_x and smoke opacity

  • Actuator response

  • Injection timing

• FTP & ESC emissions testing)

• Motoring friction at 10-12 speeds

• Recording of cylinder pressure at 152 points and detailed analysis of 21 select points (including points from the ISO 8178 C1 procedure)

• Engine disassembly and inspection:

  • Critical dimensions

  • Exhaust treatment system description

  • Subsystem and component descriptions

  • Photographs of components

• Air flow testing of head

  • Port flow coefficients

  • Swirl

  • Pressure drop

Price: $49,500

For more information about our Model Year 2004 Caterpillar C7 engine assessment capabilities, or how you can contract with Southwest Research Institute, please contact Tim Callahan, Program Manager, tcallahan@swri.org or (210) 522-6890. The fax number is (210) 522-6466.

benchmarking.swri.org

| Design and Development | Engine, Emissions & Vehicle Research Division | SwRI Home |

Southwest Research Institute^® (SwRI^®), headquartered in San Antonio, Texas, is a multidisciplinary, independent, nonprofit, applied engineering and physical sciences research and development organization with 11 technical divisions.

March 12, 2013