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Since I've got my first car I had the urge to get to know

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Since I've got my first car I had the urge to get to know more about engines.

In the first place, I understand that the combustion of fuel causes the crankshaft to spin.

What I didn't understand so far is, how you distinguisch between Torque an Power. OP is a drunk german.
>>
Horsepower is an imaginary number derived from torque.

HP = Torque * RPM / 5252
>>
Torque is the force to get the wheels to turn. Power is calculated through torque. That's how fast the wheels rotate I believe.

t. Drunk American
>>
torque is force. power is force over a given amount of time.

Or think of it this way.
Torque is how far you can step. Power is how far you can walk in a minute. If a person has long legs they have more torque, but a person with short legs can move their legs faster(more steps per minute).. they each walk the same distance in a minute, the long legged person (one with more torque) requires fewer steps.
>>
File: Leistung.jpg (61KB, 800x600px) Image search: [Google]
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So why don't engines somehow perform like this?
>>
>>16549269
Torque= rotational force
Power= rotational force x rpm

Torque alone doesn´t say anything about the car.
A Engine reving 9000rpm with 200Nm will give you the same acceleration as a engine with 400Nm reving 4500rpm.

What matters is wheel torque, wich is torque divided by gear ratio.
If your engine revs higher, you can choose a shorter gear and have more wheeltorque.

Die Amis wollen dir nur einreden Dremoment wäre wichtig, da deren Karren zwar mehr Drehmoment haben, aber sonst nichts können.

>>16549317
Man hat auch bei niedrigen Drehzahlen etwas Drehmoment, während bei hohen Drehzahlen das Frischgas nicht schnell genug nachströmen kann, wodurch das Drehmoment absinkt.
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File: Front.jpg (383KB, 2016x1538px) Image search: [Google]
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>>16549269
The ignition of the air/fuel mixture causes the gases to expand and force the piston downwards, cranking the crankshaft and generating torque.

Torque is the amount of cranking power an engine has. Horsepower is how many times the engine can crank (do work) in a given period of time.

If you've ridden a bicycle it's easier to explain it thusly:

If you have high torque, you're putting the bike on its highest gear and completing one full turn of your pedals. You travel maybe 5 metres.

With higher horsepower, you put the bike on a lower gear and complete two full turns of the pedals in order to go the same 5 metres.

In both cases the horsepower is the same as long as it's done in the same amount of time. But one can rev higher, and the other can pull harder.

Torque is a lower level measurement than horsepower. There cannot be a horsepower measurement without torque. At least not in the realm of internal combustion engines.
Thread posts: 7
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