University of Minnesota-Twin Cities

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Presentation transcript:

University of Minnesota-Twin Cities SAE International Clean Snowmobile Challenge 2017 University of Minnesota-Twin Cities

2015 Polaris Indy 600 SP 600cc 2 stroke Liberty engine Rated 125 hp Fox IFP shocks

Modification Overview Skis and Track Exhaust and Catalyst Sound Deadening Foam Standalone ECU and Ethanol Sensor

Handling C&A Pro TRX Skis Camso Ice-Attack XT Track

Exhaust System Incorporates catalyst and a new muffler Baffled to reduce noise 3-Way Catalyst BASF TEX-0587 coating Catalyst density 300 cells per square inch 2/9/1 ratio (Pt:Pd:Rh)

Noise Reduction Impedance tube and software Allows testing of materials Measures absorption coefficient Best material tested was incorporated on sled

Engine Management Performance Electronics PE3 Standalone ECU Supports 0-100% Ethanol mixtures Air/Fuel ratio calibration strategy

Sled Overview 0-100% Ethanol Capable Handling upgrades for on-trail performance Quieter exhaust muffler and aftertreatment Sound deadening materials

Acknowledgments Our Sponsors: Polaris, BASF, Heraeus, Camso, C&A Pro, Ford, Celestica, Race Coatings, Minnesota Measurements, Toro, and others Michigan Tech and the Keweenaw Research Center SAE International Judges and Volunteers