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Iowa State University Clean Snowmobile Club Iowa State University 2016 Clean Snowmobile Challenge.

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Presentation on theme: "Iowa State University Clean Snowmobile Club Iowa State University 2016 Clean Snowmobile Challenge."— Presentation transcript:

1 Iowa State University Clean Snowmobile Club Iowa State University 2016 Clean Snowmobile Challenge

2 Iowa State University Clean Snowmobile Club Agenda Chassis Selection Chassis Improvements Exhaust Treatment Engine Calibration Questions

3 Iowa State University Clean Snowmobile Club Chassis Selection 2014 Polaris Indy 800SP 795cc Cleanfire Liberty 2-stroke Aluminum ProRide Chassis

4 Iowa State University Clean Snowmobile Club Chassis Selection Buyer brand preference

5 Iowa State University Clean Snowmobile Club Chassis Selection Buyer engine displacement preference

6 Iowa State University Clean Snowmobile Club Chassis Selection Importance of fuel economy to buyers when purchasing snowmobile

7 Iowa State University Clean Snowmobile Club Chassis Improvements Sound Deadening Material: RAAMmat BXT II Placed in engine bay Significantly reduced noise levels from engine

8 Iowa State University Clean Snowmobile Club Chassis Improvements Buyer riding conditions preference

9 Iowa State University Clean Snowmobile Club Chassis Improvements Track Selection: Ripsaw 1.5 1.5” lugs 96 1-5/8” Woody’s Traction Studs

10 Iowa State University Clean Snowmobile Club Exhaust Treatment Emission Analysis of 2-stroke oils: Five oils analyzed Test run by intervals of 500rpm between 3000rpm and 5000rpm Oil system flushed between samples

11 Iowa State University Clean Snowmobile Club

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13 Exhaust Treatment Amsoil Interceptor proved to be best candidate Oil Name Definite Integral (Cumulative % over 110 seconds) Percent Increase Compared to Lowest Interceptor191.884N/A Polaris VES202.5155.25% Dominator203.0085.48% Klotz229.75819.74% G-Oil205.3757.03% Oil Definite Integral (HC parts per million cumulative over 110 seconds) Percent Increase Compared to Lowest Interceptor601,577N/A Polaris VES662,11110.06% Dominator780,69429.77% Klotz629,6084.66% G-Oil644,4637.13% Hydrocarbons Carbon Monoxide

14 Iowa State University Clean Snowmobile Club Exhaust Treatment Catalytic Converter: 400cpsi Heraeus catalyst Targets constituents of carbon monoxide and excess hydrocarbons Composition Platinum, Palladium, Rhodium (1:20:1)

15 Iowa State University Clean Snowmobile Club Exhaust Treatment Sound Treatment: Twin high-flow mufflers Stainless steel wool packing for heat resistance Manufactured primarily for space restrictions and catalyst installation

16 Iowa State University Clean Snowmobile Club Engine Calibration Engine Management: Power Commander V (PCV) Fuel Mapping Ignition timing GM Flex Fuel Sensor Ethanol compensation 0-5V signal to PCV

17 Iowa State University Clean Snowmobile Club Engine Calibration Adjustment to catalyst: First catalyst struggled with short-circuited fuel Adjusted system to move catalyst further downstream Progressive tune implemented Throttle Position (% Open) Target Lambda Value 0-401.3 41-601.1 61-801.0 81-1000.9

18 Iowa State University Clean Snowmobile Club Questions?

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