Bike India - - Bosch Techno Bible -

Mo­tor­cy­cle en­gines, es­pe­cially those in sport bikes, are ca­pa­ble of revving ex­tremely high and run­ning equally high com­pres­sion ra­tios — 200 PS from 1,000 cc is the cur­rent bench­mark glob­ally. When more power is needed from less dis­place­ment, forced in­duc­tion is the an­swer. A tur­bine, ei­ther driven by the crankshaft (called a su­per­charger) or by the ex­haust­gas stream (called a tur­bocharger), in­creases the den­sity and vol­ume of air in the cylin­der per stroke cy­cle. This al­lows more fuel to be in­jected per in­take stroke and, thus, greater power and torque out­put. For in­stance, the 998-cc su­per­charged Kawasaki Ninja H2R makes up to 326 PS and 165 Nm of torque.

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