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Kettering University

Kettering University. Clean Snowmobile Challenge March 23 rd – April 1 st , 2001. Presented by: Kyle Schwulst and Andrew Stahr. Base Snowmobile. Yamaha V-Max 600 600cc carbureted 2-stroke engine Standard continually variable transmission (CVT)

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Kettering University

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  1. Kettering University Clean Snowmobile Challenge March 23rd – April 1st, 2001 Presented by: Kyle Schwulst and Andrew Stahr

  2. Base Snowmobile • Yamaha V-Max 600 • 600cc carbureted 2-stroke engine • Standard continually variable transmission (CVT) • Limited adjustability rear suspension Picture Courtesy of Yamaha Corp.

  3. Snowmobile Modifications • Daihatsu 659cc engine • Stock engine cooling • No chassis modifications • Modified Oil Pan for lower installation height • CVT and bearing adaptor to engine flywheel

  4. Wiring harness Sporty hood appearance Exhaust system design E-85 compatibility Snowmobile Modifications

  5. Suspension and Final Drive • Team Fast M-10, long travel, highly adjustable suspension • Camoplast 1.0” rear track • Lightweight components

  6. > 80% noise reduction (-10 dBA) > 99% THC reduction > 96% CO reduction Performance and cost comparable to 600cc class snowmobile Preliminary Results + =

  7. Questions?

  8. Kettering CSC Objectives • Reduce noise • Reduce emissions • Maintain overall performance • Cost effective • Ease of manufacturability • Reliable

  9. Desired Drivetrain Characteristics • Fuel Injection • Electronic engine control • Automatic altitude adjustment • Minimal use of custom parts • Comparable power to 600cc two-stroke

  10. Why not other motors? • Direct injection two-stroke • Complex control mechanism • Undesirable emissions characteristics (max. 75% reduction) • Rotary engine • Lack of availability • Undesirable emissions characteristics

  11. Why not other motors? • Marine four-stroke • Physical engine layout incompatibility • Undesirable emissions characteristics • Motorcycle four-stroke • High mechanical noise emissions • Potential for undesirable emissions characteristics

  12. Daihatsu Mira 659cc 4-stroke • OEM 659cc displacement • Meets stringent Japanese 2006 vehicle emissions standards • OEM fuel injected • OEM turbocharged/ intercooled • OEM electronic engine control • OEM integrated catalyst

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