here's a dyno print out ... comp XE268 on a nice ( I know) 355 chev. sm blk. with Dart heads.
Torque and HP values intersect at 5252 rpm just like always.It must represent somethng?
T x rpm = P
T x rpm / 5252 = HP
5252 is the constant changes the from P to HP so they could put the power of the 1st engines in a context they could understand. How many actual horses could do the job.
Mathematically they cross there is 500 lbs-ft x 5252rpm / 5252 = 500 hp is the two 5252 cancel each other.
If you measure the power something other like P or Watts etc.. theres no crossing at 5252.