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The company began manufacturing intercooled supercharger systems for Harley Davidson motorcycles in 2006. That product included several patented design elements, and this H-D supercharger kit in 2006 was awarded a Popular Mechanics award for Design and Innovation, [ 15 ] and then in 2008 achieved further industry recognition as the Easyriders ...
The 1983 model Honda CX650 Turbos had solved the lag problems that earlier models like the CX500 Turbo had encountered. To rectify turbo lags capacity and compression ratio was raised from 7.2:1 to 7.8:1. [4] Additionally, in 1978 Kawasaki offered the Z1R-TC, a semi-production model built by Turbo Cycle Corporation and sold through Kawasaki ...
Superchargers do not suffer from turbo lag because the compressor mechanism is driven directly by the engine. Methods to reduce turbo lag include: [citation needed] Lowering the rotational inertia of the turbocharger by using lower radius parts and ceramic and other lighter materials; Changing the turbine's aspect ratio (A/R ratio)
Positive displacement superchargers deliver an almost constant level of boost pressure increase at all engine speeds, while dynamic superchargers cause the boost pressure to rise exponentially with engine speed (above a certain threshold). [4] Another family of supercharger, albeit rarely used, is the pressure wave supercharger.
A mechanically driven supercharger offers exceptional response and low-rpm performance, as it does not rely on pressurization of the exhaust manifold (assuming that it is a positive-displacement design, such as a Roots-type or twin-screw, as opposed to a centrifugal supercharger, which does not provide substantial boost in the lower rpm range), but is less efficient than a turbocharger due to ...
Harley-Davidson Twin Cam engine at the Harley-Davidson Museum. The Harley-Davidson Twin Cam are motorcycle engines made by Harley-Davidson from 1998 to 2017. Although these engines differed significantly from the Evolution engine, which in turn was derived from the series of single camshaft, overhead valve motors that were first released in 1936, they share a number of characteristics with ...