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Low rwhp?

Joeseb87

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So the print out shows rpm 4550, torque at 4550 Rpm is 438 nm
So 438 x 4550 / 9548 is 208.7 kW
Or am I understanding the torque wrong

When I did the 5252 calculation I converted nm to ft lb and then converted the Hp to kW
 

Not_An_Abba_Fan

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Didn't you say you had 501 nm of torque though?

I calculated back from your torque and hp figures and it came out at 2200rpm. 501 nm at 2200rpm is 152hp/115kw.

You can't pick a random point on the graph and calculate it from there, you need the peak torque figure and the rpm at which that occurs, not the power. You can't pick the peak power rpm and use the torque figure from that point.

Probably best if you post the readout so we have a better understanding of the graph.
 

Joeseb87

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Ok so that's where I went wrong I used the torque from the peak power not the maximum torque rpm thanks
 
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