Power-to-weight ratio is a key factor that differentiates the performance of one car from another. A “Power to Weight Ratio” is the term used to describe the relationship between a measurement of power [usually Kilowatt units] and its ability to move and accelerate a vehicle of a particular weight. This power to weight ratio calculator is capable of accepting inputs in multiple units, for that, you can use the drop-down menu next to the input text box. An interesting thing to consider when looking at the weight of the different models is the power to weight ratio. F ) t After all, if a car has enough power to accelerate quickly, it doesn’t matter quite as much if it’s heavy. Thermal energy is made up from molecular kinetic energy and latent phase energy. Fuel cells and flow cells, although perhaps using similar chemistry to batteries, have the distinction of not containing the energy storage medium or fuel. Fluid pumps convert mechanical or electrical work into movement or pressure changes of a fluid, or storage in a pressure vessel. + Here the Vehicle power is 234 hp and Vehicle weight is 15000 pound. t t The inverse of power-to-weight, weight-to-power ratio (power loading) is a calculation commonly applied to aircraft, cars, and vehicles in general, to enable the comparison of one vehicle's performance to another. All electrochemical cell batteries deliver a changing voltage as their chemistry changes from "charged" to "discharged". This increases the role flexibility of the vehicle. Flow cells typically have the fuel dissolved in the electrolyte. When factoring a power-to-weight ratio, the weight of a vehicle must be divided by the number of horsepower the engine produces. τ Weird & Wacky, Copyright © 2020 HowStuffWorks, a division of InfoSpace Holdings, LLC, a System1 Company. The power-to-weight ratio now is: 200 hp / 157 kg = 1.28 hp/kg. s t W Power-to-weight ratio for batteries is therefore less meaningful without reference to corresponding energy-to-weight ratio and cell temperature. Many times the first thing I look at is what kind of tire widths are available to me with the car I'm tuning. Power. , so the fundamental theorem of calculus has that power is given by A variety of effects can be harnessed to produce thermoelectricity, thermionic emission, pyroelectricity and piezoelectricity. This is one of the better ways of measuring the performance potential of a car, and is a much better way of comparing one car to another instead of simply considering power alone. Dec 28, 2015 - Unless you only ever ride on pancake-flat surfaces, improving your power-to-weight ratio is a must. *weight / mass, whatever you like. F By these numbers, the Vios wins, followed by the Avanza, then the Rush. m Find the Vehicle HorsePower to Weight Ratio with Vehicle power and Vehicle weight. Standard definitions should be used when interpreting how the propulsive power of a jet or rocket engine is transferred to its vehicle. These values are constantly changing, and may vary depending on your country/location. Some utility and practical vehicle variants such as hot hatches and sports-utility vehicles reconfigure power (typically increased) and weight to provide the perception of sports car like performance or for other psychological benefit. t The temperature of a battery can affect the power it can deliver, where lower temperatures reduce power. heather_irv . Power-to-weight ratio matters because it’s a great predictor of performance. This assumption allows engine tuning to trade power band width and engine mass for transmission complexity and mass. 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