Development of an Ethanol Fueled, Two-Stroke, Direct-Injection Snowmobile for Use in the Clean Snowmobile Challenge and National Parks Grant uri icon



  • Due in part to stringent noise and air pollution control measures recently imposed on snowmobiles by the US National Park Service, the Society of Automotive Engineers (SAE) instituted a student competition called the Clean Snowmobile Challenge (CSC). The competition is designed to encourage the development of a snowmobile that will meet or exceed specific required pollution and noise control measures, while maintaining or improving the snowmobile’s performance. The objective of this project is to produce a snowmobile that will meet the criteria for the 2008 CSC, in which E85 will be the fuel of choice. The snowmobile is a modified stock chassis with a drive train designed to minimize sound production and maximize power transmission. The power plant for the University of Idaho in 2008 is a smaller stock two-stroke engine which has been retrofitted with direct fuel injection. This engine and basic snowmobile have proven themselves with a First Place showing in the 2007 competition, and will be modified to use E85. The team will continue to use graduate mentors as leaders for this primarily undergraduate competition team.

date/time interval

  • January 1, 2008 - January 1, 2009