dyno numbers

[acura1]

On a dyno that measures pounds how many HP equal pounds

 

[Kart43]

You need more than that.

HP = Lb/FT * RPM / 5252

So you will need to know the length of lever the force (pounds) is acting on, at a given RPM and then divide by the constant 5252 (which we wont explain in a sentence)

 

[Performancedirect]

Does your dyno have a gallon per minute gauge? If so you can use this formula.
Psi x GPM divided by 1400.