[frnkeore]

Racing has very limited, comparison value. Weight and chassis set up has more valve, in racing.

In road or oval racing, it is how fast you get out of a corner (both weight and chassis set up), that effects any speed on a straight section. In drag racing, it's weight and how fast you get hooked up and the overall gear ratio at the light.

Terminal speed, both in drag racing and road/circle track racing can give a idea of HP but, aerodynamics also play a big part, at speeds over 100 mph.

Racing has to many variables to do direct comparisons.

The EMC trials is the best way. It tests HP per CI, Average HP and Max torque and HP on the same dyno.