Torque is power.
Capacity is a key to gaining more power as the more air(NOT petrol) that an engine can consume the more power it has the potential to make.
Torque and power are linked, if torque goes up so does power unless the torque occurs at a different speed(rpm).
At 5252 due to the way Torque and BHP are calculated and arrived at they are the same, if you ever see a chart that is different at this exact rpm then it is bollocks.
It is that increasing capacity is sometimes done to generate more torque, meaning more power lower down(rpm shift!!) and then said to be a torquey engine, may not be any more bhp but rpm has shifted.
bhp= 2XPIX torqueXrpm divided by 33,000
The 33,000 is important and was derived at when it was found the "HORSE" could move a weight of 33,000lb 1 mile in 1 minute.
This is where brake HORSE power comes from.
Another simpler way is bhp = torque X rpm divided by 5252,
or torque = bhp X 5252 divided by rpm.
PS is nearly the same as BHP but is a decimilised GERMAN (near)equivalant and stands for PFERDE STARKE, or HORSE STRONG/STRENGTH.
1 PS is 0.986 BHP
tabetha