When it comes to motorcycles, perhaps the first name that comes to mind is Harley Davidson. The company has been manufacturing rugged riding machines for years, and beneath each new model is a powerful engine to keep it thundering through the streets and highways.
The 1450cc Twin Cam 88 is the engine that powers the 2006 FXDLI Dyna Low Rider. Equipped with an electronic sequential port fuel injection system and coupled with a six-speed transmission, its engine dimensions comprise of a 3.75-inch bore and a 4-inch stroke, generating a torque of 85 pound-feet to achieve up to 50 mpg.
The 1200cc Evolution V-Twin engine runs the 2006 XL 1200L Sportster. With an air-cooled carburetor and generating a 79-pound-foot torque when matched with a five-speed transmission, it has a bore of 3.5 inches and a stroke of 3.81 inches for a compression ratio of 9.7:1.
The 1800cc Twin Cam 110 is the fuel-injected engine of the 2007 Harley FLHRSE3 Screamin’ Eagle Road King. Mated with a six-speed Cruise Drive transmission, its engine dimensions include a 40-inch bore and a 4.38-inch stroke which generates 115 pound-feet of torque and earns up to 53 mpg.
The 883cc V-Twin keeps the 2008 Harley Sportster running. This fuel-injected engine is equipped with self-adjusting lifters and two valves per cylinder. Matched with a five-speed transmission and capable of generating 55 pound-feet of torque for 60 mpg, it has a bore of 3.0 inches and a stroke of 3.81 inches for a compression ratio of 8.9:1.
The Twin Cam 103 is the driving force behind the 2008 Harley Police FLHTP Electra Glide. Coupled with a six-speed transmission with a top speed of 46 mpg, this air-cooled fuel-injected engine’s dimensions consist of a 3.88-inch bore and a 4.38-inch stroke.
The 1584cc Twin Cam 96B revs up the 2009 Harley FLSTF Fat Boy. This air-cooled engine has a mid-range torque that stabilizes the engine speed during high-speed cruising. Mated with a six-speed Cruise Drive transmission, it generates torque of 89 pound-feet and can achieve up to 54 mpg. It has a bore of 3.75 inches and a stroke of 4.39 inches.
The 1250cc Revolution 60-degree V-Twin is the liquid-cooled fuel-injected engine of the 2010 Night Rod Special VRSCDX. Coupled with a five-speed transmission and producing 85 pound-feet torque to earn a maximum of 42 mpg, it has a 4.13-inch bore and a 2.84-inch stroke for an 11.5:1 compression ratio.
The Harley Davidson brand carries with it a long and proud tradition of providing hardcore riding enthusiasts with the best and most roadworthy motorcycles. This roadworthiness is certainly defined by the look and sturdiness of the machines, but never to be discounted is the power generated by the engine which is the mighty beating heart of these roaring beasts of the roads.