More on Indian Motorcycle’s Landmark PowerPlus Engine

Indian Motorcycle’s PowerPlus adopts several design and performance features from the liquid-cooled 1133cc Indian Scout engine, including an overhead camshaft design utilizing four valves per cylinder. But comparisons end there. The PowerPlus was developed with a big-piston, big-torque mindset with an end game of maximum power delivery across the entire curve.

The all-new powertrain features a six-speed transmission with true overdrive, assist clutch to reduce clutch effort, and three ride modes that allow riders to tailor throttle mapping to their riding preferences. Advanced technology also includes hydraulic valve lash adjusters and hydraulic camshaft chain tensioners for ease of maintenance and reliability.

The PowerPlus was tested, refined, and proven by one of the industry’s most rigorous development and testing programs, accumulating over one million miles of simulated testing, including state-of-the-art dyno testing, and more than 300,000 on-road miles.

“You simply cannot deliver the ultimate bagger without an engine that stands head and shoulders above anything else in its class, and that was the motivation behind the PowerPlus,” said John Callahan, Indian Motorcycle Vice President, Engineering. “We developed the most sophisticated V-twin powerplant in the industry, and then we spent month after month, hour upon hour, putting it through the most intense paces to ensure it could take whatever we threw at it. The end result is something truly special.”

Indian Motorcycle PowerPlus Engine Specifications:

  • Engine Displacement: 108 cubic inches (1769cc)
  • Power: 122 hp at 5,500 RPM
  • Torque: 128 ft-lbs at 3,800 RPM
  • Maximum Engine Speed: 6,500 RPM
  • Architecture: 60-degree V-twin, liquid-cooled powerplant
  • Crankcase: Unit design featuring a high capacity semi-dry sump oil system
  • Timing System: Overhead camshafts and four valves per cylinder
  • Fuel System: Electronic fuel injection. 52mm dual bore throttle bodies
  • Compression Ratio: 11:1
  • Transmission: Six-speed with true overdrive, constant mesh
  • Clutch: Assist clutch

PLEASE NOTE

Indian Motorcycle’s advertised power output of the new PowerPlus engine is stated to be 122 hp and 128 ft-lbs. These are engine dyno numbers, not rear wheel figures. American Iron Magazine is awaiting a test bike to evaluate actual rear wheel power numbers. Stay Tuned!