I just have to..
Truck engine:
2500 Nm @ 2500 rpm
620 bhp @ 3000 rpm
F1 engine:
250 Nm @ 15000 rpm
620 bhp @ 18000 rpm
The truck is designed to pull heavy loads. Short gearing. Low maintenance.
The F1 is designed to go fast. Long gearing. High maintenance.
The truck can transport 25000 kg.
The F1 engine is also capable of transporting 25000 kg. In theory, both engines are equally strong (620 bhp). The F1 engine would need a different gearing, and a very high maintenance bill, but those facts are secondary in this example.
With this in mind:
Which engine can pull the heaviest load?
A) The engine producing 2500 Nm, or the engine producing 250 Nm?
Answer: Impossible to say.
B) The engine producing 620 bhp, or the other engine producing 620 bhp?
Answer: Both cars can pull the same load.
Another example: It's actually entirely possible to apply any amount of tourqe on to a crank shaft without the object moving one bit.
Let's say you're about to start riding your mountainbike from a stand still on the highest gear. You can apply let's say 100 Nm on that pedal without the bike moving at all.
Chose a lower gear, and that exact same tourqe will result in the bike starting to move.
Same amount of tourqe->different resistance->more revs->more effect.
What I can agree on is that tourqe have to be in the equation. Power can not be produced without the tourqe, yes.
But tourqe as a sign of any kind of performance is horse ****!
It's the tourqe in combination with the revs (time) that create effect.
Effect is what moved an object.
That is physics.
Tourqe has nothing to do with acceleration. Power (effect or HP) accelerates a car.
We can take the BMW 335 as an example.
It's engine produce 407 Nm from 1400-5000 rpm.
If we have 2 BMW 335's, one driver only stay within the maximum tourqe register (1400-5000 rpm), and the other driver push the rev guage to the max in each gear.
I'm not totally sure, but the driver who push the rev guage all the way to the top will most likely never be belove 5000 rpm.
He is driving the car where the most effect is created.
I can swear to god, that the driver who race his car in the 1400-5000 rpm range will fall drasticly behind.
This was my last post regarding the tourqe/hp discussion. I swear!