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Video Generally
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Video Fuel Consumption 1
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Video Ciruit Area
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Video Power (mechanical)
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Video Friction Force
Video Tyre Calculation
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Video Cam Dwell
Video Dwell Period
Video Slip
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Video Climbing Resistance
Video Ratio
Video Circumference speed
Video Conversions
Video Not Coaxial Gearbox
Video Valve Opening Area
Video Valve Opening Angle
Video Valve Opening Period
Video Compression Ratio 1
Video Compression Ratio 2
Video Amount of Heat
Video Resistance
Video Efficiency
Video Cube
Video Ignition Interval
Video Cylinder



          A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Formulary Power/weight ratio


Formula-1 engine, the symbol of a high power to weight ratio

Germanversion


The power to weight ratio calculates the the weight of engines/vehicles in kg per kW of engine performance. Here it is decided, how many kgs each kW has to move. For other vehicles unattainable, the Formula-1 engine rules with a top power/weight ratio of almost 0,15 kg/kW engine- (see picture) and approx. 0,9 kg/kW vehicle-power/weight ratio. Below, the data for standard motorcycles (net weight with a full tank) can be seen:

2007Yamaha YZF-R11,59 kg/kW (1,17 kg/PS)
2008Suzuki GSX-R 10001,56 kg/kW (1,15 kg/PS)
2008Honda Fireblade1,52 kg/kW (1,12 kg/PS)
2008Kawasaski Ninja ZX-10R1,51 kg/kW (1,11 kg/PS)


Engine

Vehicle

           mM
mPM =
            Pe

           mF
mPF =
            Pe

mM = Pe · mPM

mF = Pe · mPF

         mM
Pe =
         mPM

         mF
Pe =
         mPF

Check your calculation!     You need help?
Please enter numbers only in two of the three fields!
m Weight kg
Pe Performance kW
mP Power/weight kg/kW




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Translator: Don Leslie - Email: lesdon@t-online.de

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