Polaris unveils massive engine for new Indian motorcycles


Medina-based Polaris Industries Inc. is showing off its all-new Thunder Stroke 111 V-twin engine that will power its 2014 lineup of redesigned Indian motorcycles set to roll out later this year.

Forbes says the new engine, which will displace 111 cubic inches, is a "deliberate thumbing of the nose" at Wisconsin rival Harley-Davidson, whose biggest factory engine tops out at 110 cubic inches.

Check out the new specifications:

  • Engine Displacement: 111 cubic inches
  • Torque: More than 115 ft-lbs
  • Architecture: 49-degree V-twin, air-cooled with integrated oil cooler, left-side air intake, down firing exhaust system, parallel pushrod tubes
  • Crankcase: Unit design featuring a high capacity semi-dry sump oil system, oversized oil radiator
  • Timing System: 3 camshafts, pushrods, 2 valves per cylinder acting through maintenance-free hydraulic valve lifters, forged crankshaft
  • Fuel System: Electronic sequential port fuel injection and electronic throttle control
  • Compression Ratio: 9.5
  • Transmission: 6-speed overdrive, constant mesh, helical gearbox
  • Clutch: Low-effort, multi-plate wet clutch, aluminum basket, integral torsional damper

Watch the videos below to learn more:

Polaris acquired the 112-year-old iconic American brand in 2011.

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