Celica Forums General Discussion General Torque Question

What exactly is torque? The force that pushes you back on your seat right? Is it also defined as your cars acceleration since its pushing you back because the car is going forward faster than your body can compensate right?

yea, i'd liek to know the answer to his question. Also how fast can you make gt auto go,(how much hp can you possibl ad to it) given you had an unlimted buget.

The measure of the force applied to produce rotational motion usually measured in foot-pounds. Torque is determined by multiplying the applied force by the distance from the pivot point to the point where the force is applied.

The shear force produced when the rotation, from the motor, (an axial force) is resisted due to the friction between the fill and the Bit. The greater the torque the greater the shear force.

...could you dumb it down for me a bit, lol

why was it necessary to bring in shear force? where did you copy that from?

http://science.howstuffworks.com/fpte4.htm

this page explains torque.. it's basically rotating force like in engines and wheels. explained in lbs over distance inches or feet.. horsepower is basically just a number based on calculation that is supposed to represent how much one horse can move and it takes momentum into account.. the equasion is torque*RPM/5300 = HP.. so HP is always more than torque over 5300rpms and always under torque below 5300rpms.

and to the GT if you had an infinite amount of money.. I'm assuming on the GT 1zz motor you could probably hit 400-500hp but it wouldn't last very long.. you can get a c2power.com GT stage 2 turbo and get maybe 300+hp if you get internals and a boost controller. but with an automatic transmision I think you'd be losing the tranny every year or two. but good news is with unlimited budget you can convert it to a 6 speed.

ok, I copied this bit on torque from my 400 hp V8 vs. 400 hp 4 cylinder report (in which I didn't copy from another place):

if anyone's curious on that V8 vs I4 topic:

https://celicahobby.com/ubbthrea...part=1&vc=1

barefoott4 gave the correct mechanics (physics) definition but here is a mechanical/automotive explanation

maybe a bad assumption, but this assumes knowledge of the 4-stroke cycle and basic engine components like what a cylinder, piston, connecting rod and crank are.

ok, torque:

Torque is the twisting force developed at the crank by the power strokes of the cylinders at a certain rpm. How can we increase the force? Many ways: Add more cylinders or more displacement (volume of air and fuel to be ignited). We can up the compression in the cylinders (more potential energy). We can increase the volumetric efficiency (VE) for a particular engine. There is a direct relationship between torque and VE, which is a measure of how well an engine is able to fill and discharge its cylinders with air and fuel at a certain rpm. The greater the VE the greater the force imparted on the pistons by the ignited air/fuel mixture, leading to more torque on the crank. Many factors influence VE, and it is possible to increase VE by using Forced Induction (F/I). The higher an engine revs the less air it is able to take in and discharge on each 4-stroke cycle. This is why all torque curves trail off on the upper rpm range.
Torque is what is real and measurable. Dynamometers measure torque and calculate horsepower. Power or horsepower is a concept. It is a concept of work output over a certain amount of time. The more torque applied over a distance (revolution), the more work, and the more work over a certain amount of time, the more horsepower. It does no good if a force is generated and work is done, if it is done slowly. It is the horsepower curve that is the best description of how well a car accelerates. Torque matters because that is the measurable force we use to calculate horsepower. We also learn much from the torque curve of an engine as it indicates the engines volumetric efficiency according to rpm, and this info is useful for tuning purposes. And more peak torque generally means more low-end horsepower.

Horsepower = (Torque x RPM)/5252

The 5252 is the factor to make everything end up correctly in the right units.
Torque is in lb-ft.

So whats the fastest i could get my auto to go with out me haveing to worry about my car blowing up or my tranny shiting out on me. Like my car is 140 hp now, and i drive it normally and everything, but how fast could i get it so that i could continue to drive it worry free and everything as i do now. lol thanks .

You would have to worry about it eventually, and didnt you post this on the threads already? Just keep asking I guess to get an answer.