Ok is there a site that i can show him to prove this he is telling me that horsepower cant be derived from any of the variables.

Never mind i took care of it.

 

I didn't know that....and btw my previous post was ironic....but how do you actually calculate your HP. What RPM do you take? Where you reach max torque or not?

172hp (SAE) @ 5500rpm or 128kW
184lbs. ft. @ 3000rpm or 250Nm