How to Calculate Peak Net Horsepower from Vehicle Weight and G-force?

AI Thread Summary
To calculate peak net horsepower from vehicle weight and G-force, one can use the formula for power, which is force times distance over time. By applying the equation F=ma, where 'm' is the mass of the vehicle and 'a' is the acceleration derived from G-force, the force can be determined. Once the force is known, it can be multiplied by the speed at the time of measurement to find the power output. This method allows for the estimation of net horsepower, which can then be adjusted for frictional losses to ensure compliance with the legal limit of 5 bhp for a Motor Driven Cycle. Understanding these calculations is essential for accurate performance assessments.
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If I know the vehicle weight in pounds and I know peak G-force.
Can I find peak net horsepower? If yes, how would I do it?

I have an accelerometer on my “Motor Driven Cycle” and I have weighed myself and the cycle. To keep the cycle legally a Motor Driven Cycle it must be under 5 bhp. If I can get net hp I can account for the other relevant frictional losses to estimate bhp.

Thank you for any help you might give.
<3.7kw
 
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Welcome to PF.

Power is force times distance/time, so if you use f=ma with the accelerator data you can find force, then you plug-in speed at the time of the measurement.
 

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