Why do TQ and HP always meet at 5252?

[OldSkoolGP]

They brought this up on w-body and I got to thinking about it. And I looked at my own dyno sheet and sure enough, they met right at 5252. Is that just a function of the physics of engines, or do the manufacturers build them that way so it actually happens?

[SappySE107]

RE: Why do TQ and HP always meet at 5252?

hp = (torque * RPM) / 5250

[bszopi]

RE: Why do TQ and HP always meet at 5252?

Yep, what Ben said... HP is just a function of torque. There really isn't a way to measure HP, only torque. With that said, there will always be a place where the 2 are equal. In this case, its 5250.

[geoffinbc]

Horsepower is a measure of work. Work is a measure of force appied over a distance

One horsepower equals 33,000 foot-pounds of work in one minute. (I know its fucked up)

So to calculate horsepower in an engine we need 2 things. A measurement of force (torque) and a measurement of time (RPM)

Do the math and horsepower = torque*rpm/5,252

[Guest]

Oh no, not this can of worms.