St. Cloud State University Slick Cylinders

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Presentation transcript:

St. Cloud State University Slick Cylinders SAE Clean Snowmobile Team

Presentation Overview About the Team Design Process Major Modifications Catalytic Converter Selection Tuning Side by Side Comparison Sponsors Questions

Team Members From Left: Dan Kezar, Jake Harper, Heather VanSlyke, Jim Wicklund, Travis Meyer, & Gene Studniski

Design Process Sled Selection 2015 Polaris Rush 800 Pro-S Engine selection 2016 Polaris RZR XP 1000 110 hp 4-stroke DOHC Twin Cylinder Max torque of 72 ft-lbs Wet Sump Oil System & Liquid Cooling Sled Selection 2015 Polaris Rush 800 Pro-S MSRP: $12,799 Stock Sled Weight: 431 lbs (Dry) Stock Engine: 154 hp 2-stroke Track Length: 120”

Design Process Artec 3D scan of chassis and engine Design parts based off of the scan Most of the innovation and modifications to the sled came from the necessity of fitting the larger 4 stroke engine in the the chassis of the rush pro s

Major Modifications Engine Mount Support plate Steering Column Battery and Radiator Mount Air box Unfortunately we did not manage to dyno because it broke down the day we were scheduled to test.

Catalytic Converter Selection Benefits of Catalytic Converter Selection: Very Similar Specifications between 2008 Chevrolet Aveo and 2015 RZR Engine 1600cc vs 999cc 103hp vs 110hp 2.5” pipe diameters Distance to engine block comparable 3ft on Aveo vs. 1ft on this sled Temperature range Reaction range of 500F - 800F Measured 765F This catalytic converter features a ribbed body that minimizes expansion and distortion when the converter heats up. These ribs form a channel that protects the cushioning mat from direct exposure to exhaust gases, and they hold the ceramic catalyst in proper alignment. The converters use a monolithic honeycomb catalyst which is designed for maximum flow and surface area. The manufacturer of the catalytic converter states that it will begin reacting at 500°F. For the new RZR 1000 engine the temperature at peak RPM will be 763°F leaving an adequate range of temperature for the converter to fully operate.

Tuning

Side by Side Comparison Modified Rush XP 1000 4 stroke 620 lbs wet 110 hp 72 ft-lbs of torque Catalytic converter $13,801 Stock Rush 800 Pro-S 2 stroke 546 lbs wet 154 hp 102 ft-lbs of torque $12,799

Thank You to Our Sponsors Meyer Family Jeff Hegle Josh Muonio VanSlyke Family

Questions?