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Showing posts from December, 2024

Superchargers Vs. Turbochargers – How they work?

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Turbochargers and superchargers can sometimes get confused. With "chargers" in their names, it's easy to mistake turbochargers and superchargers as one-to-one engine devices. However, there are a few significant differences that put them on opposite ends of the automotive spectrum. Turbochargers and superchargers: The function of induction Before discussing their differences, it helps to understand what links turbochargers and superchargers from an engineering standpoint. Turbochargers and superchargers are forced induction systems. These systems use compressors to push compressed air into the engine. The compressed air allows for extra oxygen to reach the engine, which helps create an extra boost of power. The main difference between turbochargers and superchargers is their energy source. Turbochargers use the vehicle's exhaust gas; two fans – a turbine fan and a compressor fan – rotate from exhaust gas. Conversely, superchargers are powered directly by the engine; a...

Fuel ratings explained: 91, 95, 98 RON and E10

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It’s short for   Research Octane Number,  a measure of the petrol’s octane rating. In Australia, the octane ratings top out at 98 for premium unleaded, before stepping down to 95 premium unleaded, E10 (94 octane) and standard 91 octane unleaded. What’s the octane rating?  The octane rating describes a fuel’s ability to resist premature burning, also known as  engine knock.  The term originates from the knocking sound an engine may make if the fuel it is using burns too early, before the spark plug has fired to ignite it. Knock also relates to the engine’s  compression ratio.  A standard internal-combustion engine has several cylinders, each with a piston (hence terms such as V6 and V8). The compression ratio describes the volume of the cylinder when the piston is at the bottom of its stroke ( bottom dead centre  or  BDC ) as compared to the top of its stroke ( top dead centre , or  TDC ). If the volume at BDC is ten times that at TDC, th...

Dyno Tuning Motorcycles - How does it work and why is it important?

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  What is a Dyno? A dynamometer (Dyno) is a machine used for measuring the Torque and Power or a Motorcycle while also monitoring the Air Fuel Ratio. It is used to assess the a vehicle's state of tune by placing the vehicle under different loads and acceleration rates, measuring the results and making appropriate modifications/changes to the tune of the Motorcycle. Why do I need my bike Dyno Tested? If you have installed any aftermarket items like an exhaust or air filter these changes can alter your Air Fuel Ratio (AFR). This can result in a motorcycle that is not making the optimum power and in extreeme circumstances it can lead to dangerously lean conditions which can cause engine damage. You should have your Motorcycle ECU tuned to suit the modification.  Correcting the AFR by a professional tuner will result in a smoother, more efficient running motor with maximum power and torque.  Why is a custom dyno better than a Send In Flash or a map downloaded off the interne...