(adsbygoogle = window.adsbygoogle || []).push({}); Linear RPM vs Time = ?? Horsepower

I have graphed some sampled data taken from a car on a level road, travelling its rpm range (from 2000rpm -> 8000rpm) under full acceleration, and the graph shows an almost linear change in rpm over time.

For the sake of example, let us assume RPM = time (secs) * 1000 as this is very similar to the graph i have.

I have not been able to convert this to Horsepower or Torque, although I have the suspicion that because the acceleration is constant, that the horsepower graph would be more curved upward at the high rpm to overcome wind drag. Am I correct in understanding that wind drag is not linear?

Could someone explain how I would graph the horsepower, both corrected and uncorrected for winddrag?

For the graph, please assume the vehicle weight is 1180kg, travelling on a level road at sea level, gear ratio of 2.05, and diff ratio of 3.421.

Thanks

Tony

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# Homework Help: Linear RPM vs Time = ? Horsepower

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