2006 Michigan Tech Clean 2006 Michigan Tech Clean SnowmobileSnowmobile

Matt Prusak - Team Leader

Wes Barrett – Vice President

ConceptConcept

“Design and build a clean, quiet, reliable, high-performance snowmobile that is enjoyable to ride in a wide variety of conditions, and can be operated by a wide range of enthusiasts.”

OutlineOutline

- Why is the MTU Clean Snowmobile superior to current technology?- Consumer Perspective

- High-Performance- Environmental Perspective

- Low Noise- Low Emissions

- Dealer/Outfitter Perspective- Durable- Low Cost- High Resale Value

Performance - EnginePerformance - EngineConsumer PerspectiveConsumer Perspective

• ’03 Honda CBR 954RR– 4-cycle – 4-cylinder – 4 valves per cylinder– Electronic Fuel Injection– 113kW (152 rwhp) in OEM trim

2006 Honda CBR954RR Power Run, Competition Exhaust and Calibration

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Performance – ChassisPerformance – ChassisConsumer PerspectiveConsumer Perspective

• Premium suspension components– Fox Float front shocks used

• Highly tunable– Rear suspension spring and

damping rates modified• Extensive on-trail Calibration

– Multiple-rider input for 200 miles– Calibrated for best possible

compromise between bump absorption, and weight transfer for a wide range of users, from beginner to expert

Emissions DevelopmentEmissions DevelopmentEnvironmental PerspectiveEnvironmental Perspective

• Why use a four-stroke engine?– The numbers don’t lie

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2005 CSC Emissions Data

2005 MTU Clean Snowmobile

2005 Platteville CleanSnowmobile

2005 Ski-Doo 600SDI

Emissions StrategyEmissions Strategy

• Team-Designed Exhaust System– Emitec Catalytic Converter Installed

• Power Commander Piggyback EFI Modifier– Used to Modify OEM Fuel Map

• Significant reductions in tailpipe emissions compared to OEM engine calibration– 96.6% Average Reduction in HC– 97.2% Average Reduction in CO– 93.1% Average Reduction in NOx– Stoichiometric Operating Conditions

Emissions DevelopmentEmissions Development

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Noise ReductionNoise ReductionEnvironmental PerspectiveEnvironmental Perspective

How?• Team designed Helical Gearbox

• Intake silencer

• 2 piece muffling system– Primary Supercritical muffler– Secondary glass pack to absorb high frequency noise

• Closed off hood vents

• Sound absorbing material in belly-pan

• Minimized idler wheels in rear suspension

• Made Use of Arctic Cat style Quiet Track Technology

Noise Reduction TestingNoise Reduction TestingEnvironmental PerspectiveEnvironmental Perspective

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Secondary Muffler Testing

Selections:– Long Red GP – 83.1 dBA

– Good combination of noise and power output

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Noise Reduction TestingNoise Reduction TestingEnvironmental PerspectiveEnvironmental Perspective

Selections from testing:– Covered Silenced Intake – 74.5 dBA

– Closed Hood Vents – 73.5 dBA

• Built on a Polaris Pro-X race driven Chassis– Torture tested for over 200 miles on

ungroomed trails

• Powered by a race proven Honda 954cc High Performance street bike engine– Dyno Tested for over 100 hrs– Constant 10 minute intervals at mode 1

calibration point

DurabilityDurabilityDealer/Outfitter PerspectiveDealer/Outfitter Perspective

Cost AnalysisCost AnalysisDealer/Outfitter PerspectiveDealer/Outfitter Perspective

• 2006 TICA– Total Implementation Cost

Analysis (TICA) of $1346.19– Coming in at around $9400.00

makes it cheaper than the new 4-strokes when added to price of Stock 600 Polaris

• Highly tuned 4-stroke Engine

– Consumes Less fuel than stock – Approx. 14 mpg

• Maintenance Free– Fouling spark plugs isn’t even

considered– Uses no oil, changing oil/filter

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2006 MTU CSC Yamaha ApexRTX

Polaris FSTClassic

Arctic Cat T660

Questions?Questions?