University of Idaho's Direct-Injected Two-Stroke Snowmobile Using E2X Fuel

013284692010Final Report: August 2009 - September 2010PDFTech ReportN10-09DTRT07-G-0056EthanolRecreational vehiclesSnowmobilesHighwaysResearch HubVehicles and EquipmentI91: Vehicle Design and SafetyUnited StatesNational Institute for Advanced Transportation Technology (U.S.)Britanyak, PeterDixon, DylanFuhrman, AlexDen Braven, Karen R.National Institute for Advanced Transportation Technology (U.S.)University of IdahoUnited States. Dept. of Transportation. Research and Special Programs AdministrationUniversity Transportation Centers Program (U.S.)US Transportation CollectionThe University of Idaho's entry into the 2010 SAE Clean Snowmobile Challenge (CSC) was a direct-injection (DI) two-stroke powered snowmobile modified to use blended ethanol fuel. The modulated and battery-less direct-injection system used to decrease exhaust emissions and improve fuel economy maintained near stock power output of the engine. Noise from the engine compartment was reduced by custom placement of sound absorbing materials. Pre-competition testing had the snowmobile entering the 2010 SAE CSC competition weighing 507 lbs (230 kg) wet, before adding sound deadening material