SAE International Clean Snowmobile Challenge 2017 2015 Polaris Indy 600 SP 600cc 2 stroke Liberty engine Rated 125 hp Fox IFP shocks Modification Overview Skis and Track Exhaust and Catalyst ID: 717975
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Slide1
University of Minnesota-Twin Cities
SAE International Clean Snowmobile Challenge 2017Slide2
2015 Polaris Indy 600 SP
600cc 2 stroke Liberty engine
Rated 125 hpFox IFP shocksSlide3
Modification Overview
Skis and TrackExhaust and CatalystSound Deadening FoamStandalone ECU and Ethanol SensorSlide4
Handling
C&A Pro TRX Skis
Camso
Ice-Attack XT TrackSlide5
Exhaust System
Incorporates catalyst and a new muffler
Baffled to reduce noise3-Way Catalyst BASF TEX-0587 coating Catalyst density 300 cells per square inch2/9/1 ratio (Pt:Pd:Rh)Slide6
Noise Reduction
Impedance tube and software
Allows testing of materialsMeasures absorption coefficientBest material tested was incorporated on sledSlide7Slide8
Engine Management
Performance Electronics PE3
Standalone ECU
Supports 0-100% Ethanol mixtures
Air/Fuel ratio calibration strategySlide9
Sled Overview
0-100% Ethanol CapableHandling upgrades for on-trail performanceQuieter exhaust muffler and aftertreatmentSound deadening materialsSlide10
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 VolunteersSlide11Slide12