US ON , On Our Supercharged and intercooled, four-stroke, DOHC, four valves per cylinder, in-cylinderDisplacement1,498 ccBore x Stroke83 x 69.2 mmCompression Ratio8.2:1InductionEaton Twin Vortices Series roots-type supercharger with air-to-water intercoolerMaximum Horsepower310 hp (Horsepower measured in PS at the crankshaft under controlled conditions. Actual performance may vary.)Cooling systemInducted waterFuel SystemDigital Fuel Injection with 60mm throttle bodiesIgnitionTCBI with Digital AdvanceStarting SystemElectricLubrication.