Torque

Stan27 · April 26th, 2006, 11:07 PM

Here's a stupid question..
I know I can go look it up somewhere, but I also know that I can get a better answer here.

What exactly is torque? What are the differences between torque and horsepower?

AtlanticBlue99 · April 26th, 2006, 11:24 PM

1 Horsepower is the amount of power needed to lift 550 pounds 1 foot in 1 second (based on a force over a time).

Torque is a rotational force. When the combustion takes place and the crankshaft rotates (twists) torque is created. Torque moves from the engine to the transmission to the driveshaft to the rear end and axle assembly.

Also, torque is not defined by time. So as horsepower is a measurement of power of time, torque is a constant measurement of rotational energy.

Torque is the initial force you feel at acceleration, horsepower is just a calculated number to measure the amount of power the engine is making.

Horsepower = Torque X Engine RPM / 5252

Horsepower in a straight line is torque.

Drgnracin72 · April 27th, 2006, 12:27 AM

you made that sound a lot better than if i was to have told him. good job AB

Stan27 · April 27th, 2006, 02:10 AM

Hmm... So when a dyno gives you the numbers, is it using the formula or a mechanical method?

Thanks for the explanation, it really helped.. Just had more questions.

AtlanticBlue99 · April 27th, 2006, 08:09 AM

A dyno can register the numbers diffently (different kinds of dyno's), but most measure realwheel horspower by hooking up to some of the car's sensors then letting the car roll on a roller with the drive wheels. The formula is a universal number as the HP and TQ curves always intersect at 5252 RPM's.

WVSNS& · April 27th, 2006, 12:09 PM

That higher math is brutal.

173speed · April 27th, 2006, 04:42 PM

Originally Posted by AtlanticBlue99

1 Horsepower is the amount of power needed to lift 550 pounds 1 foot in 1 second (based on a force over a time).

Torque is a rotational force. When the combustion takes place and the crankshaft rotates (twists) torque is created. Torque moves from the engine to the transmission to the driveshaft to the rear end and axle assembly.

Also, torque is not defined by time. So as horsepower is a measurement of power of time, torque is a constant measurement of rotational energy.

Torque is the initial force you feel at acceleration, horsepower is just a calculated number to measure the amount of power the engine is making.

Horsepower = Torque X Engine RPM / 5252

Horsepower in a straight line is torque.

u the man ab

mdvaldosta · April 27th, 2006, 04:53 PM

In simple terms, torque is force and horsepower is how fast you can use that force. A chassis dyno measures torque and calculates horsepower based on how fast that torque gets the wheels moving.

They both go hand in hand to make speed... some people simplify this as "Torque gets you moving and horsepower keeps you moving".

Stan27 · April 30th, 2006, 02:00 AM

Oh, ok. Thanks alot, guys.

April 26th, 2006, 11:07 PM	#1
Stan27 Regular Join Date: Apr 2006 Location: Salinas, CA Posts: 228 iTrader: 0 reviews	Torque Here's a stupid question.. I know I can go look it up somewhere, but I also know that I can get a better answer here. What exactly is torque? What are the differences between torque and horsepower?

April 26th, 2006, 11:24 PM	#2
AtlanticBlue99 I Post Entirely Way Too Much 1999 Ford Mustang V6 14.79 @ 92.15 Join Date: Aug 2005 Location: University of Georgia Posts: 8,859 Blog Entries: 1 iTrader: 0 reviews	1 Horsepower is the amount of power needed to lift 550 pounds 1 foot in 1 second (based on a force over a time). Torque is a rotational force. When the combustion takes place and the crankshaft rotates (twists) torque is created. Torque moves from the engine to the transmission to the driveshaft to the rear end and axle assembly. Also, torque is not defined by time. So as horsepower is a measurement of power of time, torque is a constant measurement of rotational energy. Torque is the initial force you feel at acceleration, horsepower is just a calculated number to measure the amount of power the engine is making. Horsepower = Torque X Engine RPM / 5252 Horsepower in a straight line is torque. __________________ ModdedAutos 1999 Mustang V6 I used to list my mods here but stopped when I exceeded 255 characters.

April 27th, 2006, 12:27 AM	#3
Drgnracin72 I Post Entirely Way Too Much Join Date: Jan 2006 Location: somewhere in oklahoma Posts: 10,638 iTrader: 2 reviews	you made that sound a lot better than if i was to have told him. good job AB __________________ RIP ΜΟΛΩΝ ΛΑΒΕ Political Correctness is a doctrine, fostered by a delusional, illogical, liberal minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end. One Big Ass Mistake America SHEEPDOGS

April 27th, 2006, 08:09 AM	#5
AtlanticBlue99 I Post Entirely Way Too Much 1999 Ford Mustang V6 14.79 @ 92.15 Join Date: Aug 2005 Location: University of Georgia Posts: 8,859 Blog Entries: 1 iTrader: 0 reviews	A dyno can register the numbers diffently (different kinds of dyno's), but most measure realwheel horspower by hooking up to some of the car's sensors then letting the car roll on a roller with the drive wheels. The formula is a universal number as the HP and TQ curves always intersect at 5252 RPM's. __________________ ModdedAutos 1999 Mustang V6 I used to list my mods here but stopped when I exceeded 255 characters.

April 27th, 2006, 12:09 PM	#6
WVSNS& Regular 2001 Mustang Cobra Join Date: Dec 2005 Location: va beach Posts: 214 iTrader: 0 reviews	. That higher math is brutal.

April 27th, 2006, 02:10 AM	#4
Stan27 Regular Join Date: Apr 2006 Location: Salinas, CA Posts: 228 iTrader: 0 reviews	Hmm... So when a dyno gives you the numbers, is it using the formula or a mechanical method? Thanks for the explanation, it really helped.. Just had more questions.

April 27th, 2006, 04:53 PM	#8
mdvaldosta MM Fanatic 2002 Mustang GT 11.47@120.58 Join Date: Aug 2005 Location: Valdosta, GA Posts: 3,940 iTrader: 0 reviews	In simple terms, torque is force and horsepower is how fast you can use that force. A chassis dyno measures torque and calculates horsepower based on how fast that torque gets the wheels moving. They both go hand in hand to make speed... some people simplify this as "Torque gets you moving and horsepower keeps you moving".

April 30th, 2006, 02:00 AM	#9
Stan27 Regular Join Date: Apr 2006 Location: Salinas, CA Posts: 228 iTrader: 0 reviews	Oh, ok. Thanks alot, guys.

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