1. Direct Injection Reduced Emissions Improved Efficiency Presented By: Andrew Findlay Justin Johnson

2. Competition Goals:  Stimulate industry to produce snowmobiles for pristine areas  This has been accomplished U of I Goals  Meet NPS regulations  Produce a design that is marketable to all consumers across the country. 2012 EPA 2006 NPS 2003 U of I E Score100170193

3. Direct InjectionChassis Modifications  Sound absorbing and vibration damping materials to reduce noise output  Electric oil injection to reduce oil consumption  Exhaust outlet designed to reduce noise Clean, quiet two-stroke  Adapt E-TEC injectors to Polaris 600cc engine  Improve combustion chamber geometry  Adapt the E-TEC 55 volt power source  Operate engine in homogeneous and stratified combustion modes

4.  Enabling the right to ride in sensitive areas by improving the two-stroke engine  Increased gas mileage  Reduced cost for the outfitter  Increased range or lighter weight with smaller gas tank  Maintains stock power and handling characteristics  Minimal cost over production snowmobile  Adaptable chassis for different riding styles

5.  E-TEC© high-pressure fuel injectors  Cylinder head  55V power source

6.  Injector  Head  Spark Plug  Fuel Cone  Piston  Cylinder Port Geometry  Cooling passages

8. Squish Area Dome Angle Improved near nozzle geometry Spark plug location Stock cooling passage geometry Dome Radius

9.  Taken in December, 2004  74% less HC + NO x and 41% less CO (5 mode weighted average) without a catalyst.  Displayed areas tuning was needed most.

10.  Less than $200 difference between stock and cost of implementing direct injection technology due to injectors, fuel pump, and catalyst.

11.  Improve the look of a stock production snowmobile  Packaging power source inside stock housing eliminates need for external alternator or battery  Lightest IC weight at this years competition

12.  Continued production of two-stroke engine  Meeting the customer demand of the two- stroke power-to-weight ratio  Meeting emission standards  Minimize implementation cost by using currently available technology  Chassis adjusts to many riding positions

13. Direct-Injection solves many of current problems  Improves fuel efficiency  Reduces pollution emissions  Maintains stock power-to-weight ratio and handling  Feasible solution that is realistic

14. Thank You! Questions?