For those people who like metric, the crossover point for kilowatts and newton-meters is 9548.8 rpm So, a rule of thumb for metric power charts is if your car makes 500 kilowatts at 9548.8RPM (or just 9549) then your car is also producing 500 newton-meters at that RPM. For, if you see a graph that shows the power and torque of a car crossing over at some other point, and the chart/graph is in kW and n-m units, then the chart is fake or wrong. For hp and torque in foot-pounds, is 5252RPM for same values. I use these rules to look at power graphs claimed by people (such as the obnoxious person of our age, the Youtuber what's up everybody OMG) to see if they are true. Even Maserati's own literature looks odd, to me, but it seems close to the 9548.8 value for when torque(N-m) crosses power (kW.) 1000hp at 5252 RPM is 5252 foot-pounds 1000hp is 745.70103kW 1000 foot-pounds is 1355.8 N-m So, in metric, torque equals power in kW at about 9549 RPM. If a source is boasting about making 1000kw and 3500 N-m of torque both at 5252 RPM, he is obviously lying. The crossover point for N-m is about 9549 RPM. For hp and foot-pounds it is 5252RPM. You can bookmark handy sites like this: http://wentec.com/unipower/calculators/power_torque.asp to check whether a metric dyno chart you are being told to believe is actually real.
