Quote: I agree with Chris's barracuda horse power is horse power which is derived from torque on a dyno. So 500hp runs the same in a 3000lb car no matter what CI it is. :
Technically this is correct, The Dyno doesnt know the CI size of the motor while measuring the torque to get the Calculated 500 HP.
Both torque readings will be variably different and at different RPMs to get the 500 HP.
These cars arent raced down the track @ exactly 500 HP. They usually run in a rpm band with of about 1000 to 1500 Its in that dwell time that the 500 HP BB will have the advantage over the 500 HP SB
As the SB will have a more Peaky powerband vs the BB broader powerband. The longer stroke of the BB will have more torque then the SB,
So IMO, even though Both motors will produce 500HP, its the power under the curve in the combos powerband thats going to have more effect on ET then just the Peak 500HP
Now you might argue that if Both cars are run down the track with verts Right at their HP peaks,start to finsh, the BB say at 6250 rpm and the SB at 6850 rpm. Then would they be Equal?
Technically , they should be, but lets not forget the 500HP is still a Calculated number based off of two different RPMs
The reality of the comparison on paper looks good, but the reality of the track is different.IMO
It would be a fun test though, but in reality could we really trust the calculated numbers to be accurate. Heck around here we have dynos that are 100 HP off from one another sometimes.
